07a77e09da
https://source.android.com/security/bulletin/2021-01-01 CVE-2020-10732 CVE-2020-10766 CVE-2021-0323 * tag 'ASB-2021-01-05_4.19-stable' of https://github.com/aosp-mirror/kernel_common: Revert "seq_buf: Avoid type mismatch for seq_buf_init" Linux 4.19.164 platform/x86: mlx-platform: remove an unused variable PCI: Fix pci_slot_release() NULL pointer dereference platform/x86: intel-vbtn: Allow switch events on Acer Switch Alpha 12 libnvdimm/namespace: Fix reaping of invalidated block-window-namespace labels xenbus/xenbus_backend: Disallow pending watch messages xen/xenbus: Count pending messages for each watch xen/xenbus/xen_bus_type: Support will_handle watch callback xen/xenbus: Add 'will_handle' callback support in xenbus_watch_path() xen/xenbus: Allow watches discard events before queueing xen-blkback: set ring->xenblkd to NULL after kthread_stop() clk: mvebu: a3700: fix the XTAL MODE pin to MPP1_9 pinctrl: sunxi: Always call chained_irq_{enter, exit} in sunxi_pinctrl_irq_handler md/cluster: fix deadlock when node is doing resync job md/cluster: block reshape with remote resync job iio:imu:bmi160: Fix too large a buffer. iio:pressure:mpl3115: Force alignment of buffer iio:light:st_uvis25: Fix timestamp alignment and prevent data leak. iio:light:rpr0521: Fix timestamp alignment and prevent data leak. iio: adc: rockchip_saradc: fix missing clk_disable_unprepare() on error in rockchip_saradc_resume iio: buffer: Fix demux update scsi: lpfc: Re-fix use after free in lpfc_rq_buf_free() scsi: lpfc: Fix invalid sleeping context in lpfc_sli4_nvmet_alloc() mtd: rawnand: qcom: Fix DMA sync on FLASH_STATUS register read mtd: parser: cmdline: Fix parsing of part-names with colons mtd: spinand: Fix OOB read soc: qcom: smp2p: Safely acquire spinlock without IRQs spi: mt7621: fix missing clk_disable_unprepare() on error in mt7621_spi_probe spi: st-ssc4: Fix unbalanced pm_runtime_disable() in probe error path spi: sc18is602: Don't leak SPI master in probe error path spi: rb4xx: Don't leak SPI master in probe error path spi: pic32: Don't leak DMA channels in probe error path spi: davinci: Fix use-after-free on unbind spi: spi-sh: Fix use-after-free on unbind drm/dp_aux_dev: check aux_dev before use in drm_dp_aux_dev_get_by_minor() jfs: Fix array index bounds check in dbAdjTree jffs2: Fix GC exit abnormally ubifs: wbuf: Don't leak kernel memory to flash SMB3.1.1: do not log warning message if server doesn't populate salt SMB3: avoid confusing warning message on mount to Azure ceph: fix race in concurrent __ceph_remove_cap invocations ima: Don't modify file descriptor mode on the fly powerpc/powernv/memtrace: Fix crashing the kernel when enabling concurrently powerpc/powernv/memtrace: Don't leak kernel memory to user space powerpc/xmon: Change printk() to pr_cont() powerpc/rtas: Fix typo of ibm,open-errinjct in RTAS filter powerpc: Fix incorrect stw{, ux, u, x} instructions in __set_pte_at ARM: dts: at91: sama5d2: fix CAN message ram offset and size ARM: dts: pandaboard: fix pinmux for gpio user button of Pandaboard ES KVM: arm64: Introduce handling of AArch32 TTBCR2 traps ext4: fix deadlock with fs freezing and EA inodes ext4: fix a memory leak of ext4_free_data USB: serial: keyspan_pda: fix write unthrottling USB: serial: keyspan_pda: fix tx-unthrottle use-after-free USB: serial: keyspan_pda: fix write-wakeup use-after-free USB: serial: keyspan_pda: fix stalled writes USB: serial: keyspan_pda: fix write deadlock USB: serial: keyspan_pda: fix dropped unthrottle interrupts USB: serial: digi_acceleport: fix write-wakeup deadlocks USB: serial: mos7720: fix parallel-port state restore EDAC/amd64: Fix PCI component registration crypto: ecdh - avoid unaligned accesses in ecdh_set_secret() powerpc/perf: Exclude kernel samples while counting events in user space. staging: comedi: mf6x4: Fix AI end-of-conversion detection s390/dasd: fix list corruption of lcu list s390/dasd: fix list corruption of pavgroup group list s390/dasd: prevent inconsistent LCU device data s390/dasd: fix hanging device offline processing s390/kexec_file: fix diag308 subcode when loading crash kernel s390/smp: perform initial CPU reset also for SMT siblings ALSA: usb-audio: Disable sample read check if firmware doesn't give back ALSA: usb-audio: Add VID to support native DSD reproduction on FiiO devices ALSA: hda/realtek: Apply jack fixup for Quanta NL3 ALSA: hda/realtek: Add quirk for MSI-GP73 ALSA: pcm: oss: Fix a few more UBSAN fixes ALSA: hda/realtek - Enable headset mic of ASUS Q524UQK with ALC255 ALSA: hda/realtek - Enable headset mic of ASUS X430UN with ALC256 ALSA: hda: Fix regressions on clear and reconfig sysfs ACPI: PNP: compare the string length in the matching_id() Revert "ACPI / resources: Use AE_CTRL_TERMINATE to terminate resources walks" PM: ACPI: PCI: Drop acpi_pm_set_bridge_wakeup() ALSA: hda/ca0132 - Change Input Source enum strings. Input: cyapa_gen6 - fix out-of-bounds stack access media: ipu3-cio2: Make the field on subdev format V4L2_FIELD_NONE media: ipu3-cio2: Validate mbus format in setting subdev format media: ipu3-cio2: Serialise access to pad format media: ipu3-cio2: Return actual subdev format media: ipu3-cio2: Remove traces of returned buffers media: netup_unidvb: Don't leak SPI master in probe error path media: sunxi-cir: ensure IR is handled when it is continuous media: gspca: Fix memory leak in probe Input: goodix - add upside-down quirk for Teclast X98 Pro tablet Input: cros_ec_keyb - send 'scancodes' in addition to key events lwt: Disable BH too in run_lwt_bpf() fix namespaced fscaps when !CONFIG_SECURITY cfg80211: initialize rekey_data ARM: sunxi: Add machine match for the Allwinner V3 SoC kconfig: fix return value of do_error_if() clk: sunxi-ng: Make sure divider tables have sentinel clk: s2mps11: Fix a resource leak in error handling paths in the probe function qlcnic: Fix error code in probe perf record: Fix memory leak when using '--user-regs=?' to list registers pwm: lp3943: Dynamically allocate PWM chip base pwm: zx: Add missing cleanup in error path clk: ti: Fix memleak in ti_fapll_synth_setup watchdog: coh901327: add COMMON_CLK dependency watchdog: qcom: Avoid context switch in restart handler libnvdimm/label: Return -ENXIO for no slot in __blk_label_update net: korina: fix return value net: allwinner: Fix some resources leak in the error handling path of the probe and in the remove function net: bcmgenet: Fix a resource leak in an error handling path in the probe functin checkpatch: fix unescaped left brace powerpc/ps3: use dma_mapping_error() nfc: s3fwrn5: Release the nfc firmware um: chan_xterm: Fix fd leak um: tty: Fix handling of close in tty lines um: Monitor error events in IRQ controller watchdog: Fix potential dereferencing of null pointer watchdog: sprd: check busy bit before new loading rather than after that watchdog: sprd: remove watchdog disable from resume fail path watchdog: sirfsoc: Add missing dependency on HAS_IOMEM irqchip/alpine-msi: Fix freeing of interrupts on allocation error path ASoC: wm_adsp: remove "ctl" from list on error in wm_adsp_create_control() mac80211: don't set set TDLS STA bandwidth wider than possible extcon: max77693: Fix modalias string clk: tegra: Fix duplicated SE clock entry bus: fsl-mc: fix error return code in fsl_mc_object_allocate() x86/kprobes: Restore BTF if the single-stepping is cancelled nfs_common: need lock during iterate through the list nfsd: Fix message level for normal termination speakup: fix uninitialized flush_lock usb: oxu210hp-hcd: Fix memory leak in oxu_create usb: ehci-omap: Fix PM disable depth umbalance in ehci_hcd_omap_probe powerpc/pseries/hibernation: remove redundant cacheinfo update powerpc/pseries/hibernation: drop pseries_suspend_begin() from suspend ops platform/x86: mlx-platform: Fix item counter assignment for MSN2700, MSN24xx systems scsi: fnic: Fix error return code in fnic_probe() seq_buf: Avoid type mismatch for seq_buf_init scsi: pm80xx: Fix error return in pm8001_pci_probe() scsi: qedi: Fix missing destroy_workqueue() on error in __qedi_probe cpufreq: scpi: Add missing MODULE_ALIAS cpufreq: loongson1: Add missing MODULE_ALIAS cpufreq: st: Add missing MODULE_DEVICE_TABLE cpufreq: mediatek: Add missing MODULE_DEVICE_TABLE cpufreq: highbank: Add missing MODULE_DEVICE_TABLE clocksource/drivers/arm_arch_timer: Correct fault programming of CNTKCTL_EL1.EVNTI dm ioctl: fix error return code in target_message ASoC: jz4740-i2s: add missed checks for clk_get() net/mlx5: Properly convey driver version to firmware memstick: r592: Fix error return in r592_probe() arm64: dts: rockchip: Fix UART pull-ups on rk3328 pinctrl: falcon: add missing put_device() call in pinctrl_falcon_probe() ARM: dts: at91: sama5d2: map securam as device clocksource/drivers/cadence_ttc: Fix memory leak in ttc_setup_clockevent() media: saa7146: fix array overflow in vidioc_s_audio() vfio-pci: Use io_remap_pfn_range() for PCI IO memory NFS: switch nfsiod to be an UNBOUND workqueue. lockd: don't use interval-based rebinding over TCP SUNRPC: xprt_load_transport() needs to support the netid "rdma6" NFSv4.2: condition READDIR's mask for security label based on LSM state ath10k: Release some resources in an error handling path ath10k: Fix an error handling path ath10k: Fix the parsing error in service available event platform/x86: dell-smbios-base: Fix error return code in dell_smbios_init ARM: dts: at91: at91sam9rl: fix ADC triggers arm64: dts: meson: fix spi-max-frequency on Khadas VIM2 PCI: iproc: Fix out-of-bound array accesses PCI: Fix overflow in command-line resource alignment requests PCI: Bounds-check command-line resource alignment requests genirq/irqdomain: Don't try to free an interrupt that has no mapping power: supply: bq24190_charger: fix reference leak power: supply: axp288_charger: Fix HP Pavilion x2 10 DMI matching arm64: dts: rockchip: Set dr_mode to "host" for OTG on rk3328-roc-cc ARM: dts: Remove non-existent i2c1 from 98dx3236 HSI: omap_ssi: Don't jump to free ID in ssi_add_controller() slimbus: qcom-ngd-ctrl: Avoid sending power requests without QMI media: max2175: fix max2175_set_csm_mode() error code mips: cdmm: fix use-after-free in mips_cdmm_bus_discover samples: bpf: Fix lwt_len_hist reusing previous BPF map platform/x86: mlx-platform: Remove PSU EEPROM from MSN274x platform configuration platform/x86: mlx-platform: Remove PSU EEPROM from default platform configuration media: siano: fix memory leak of debugfs members in smsdvb_hotplug dmaengine: mv_xor_v2: Fix error return code in mv_xor_v2_probe() cw1200: fix missing destroy_workqueue() on error in cw1200_init_common orinoco: Move context allocation after processing the skb ARM: dts: at91: sama5d3_xplained: add pincontrol for USB Host ARM: dts: at91: sama5d4_xplained: add pincontrol for USB Host memstick: fix a double-free bug in memstick_check RDMA/cxgb4: Validate the number of CQEs Input: omap4-keypad - fix runtime PM error handling drivers: soc: ti: knav_qmss_queue: Fix error return code in knav_queue_probe soc: ti: Fix reference imbalance in knav_dma_probe soc: ti: knav_qmss: fix reference leak in knav_queue_probe spi: fix resource leak for drivers without .remove callback crypto: omap-aes - Fix PM disable depth imbalance in omap_aes_probe crypto: crypto4xx - Replace bitwise OR with logical OR in crypto4xx_build_pd powerpc/feature: Fix CPU_FTRS_ALWAYS by removing CPU_FTRS_GENERIC_32 spi: mxs: fix reference leak in mxs_spi_probe usb/max3421: fix return error code in max3421_probe() Input: ads7846 - fix unaligned access on 7845 Input: ads7846 - fix integer overflow on Rt calculation Input: ads7846 - fix race that causes missing releases drm/omap: dmm_tiler: fix return error code in omap_dmm_probe() video: fbdev: atmel_lcdfb: fix return error code in atmel_lcdfb_of_init() media: solo6x10: fix missing snd_card_free in error handling case scsi: core: Fix VPD LUN ID designator priorities ASoC: meson: fix COMPILE_TEST error media: mtk-vcodec: add missing put_device() call in mtk_vcodec_release_dec_pm() media: tm6000: Fix sizeof() mismatches staging: gasket: interrupt: fix the missed eventfd_ctx_put() in gasket_interrupt.c staging: greybus: codecs: Fix reference counter leak in error handling crypto: qat - fix status check in qat_hal_put_rel_rd_xfer() MIPS: BCM47XX: fix kconfig dependency bug for BCM47XX_BCMA RDMa/mthca: Work around -Wenum-conversion warning ASoC: arizona: Fix a wrong free in wm8997_probe ASoC: wm8998: Fix PM disable depth imbalance on error mwifiex: fix mwifiex_shutdown_sw() causing sw reset failure spi: bcm63xx-hsspi: fix missing clk_disable_unprepare() on error in bcm63xx_hsspi_resume spi: tegra114: fix reference leak in tegra spi ops spi: tegra20-sflash: fix reference leak in tegra_sflash_resume spi: tegra20-slink: fix reference leak in slink ops of tegra20 spi: spi-ti-qspi: fix reference leak in ti_qspi_setup Bluetooth: hci_h5: fix memory leak in h5_close Bluetooth: Fix null pointer dereference in hci_event_packet() arm64: dts: exynos: Correct psci compatible used on Exynos7 arm64: dts: exynos: Include common syscon restart/poweroff for Exynos7 selinux: fix inode_doinit_with_dentry() LABEL_INVALID error handling ASoC: pcm: DRAIN support reactivation drm/msm/dsi_pll_10nm: restore VCO rate during restore_state spi: img-spfi: fix reference leak in img_spfi_resume powerpc/64: Set up a kernel stack for secondaries before cpu_restore() crypto: inside-secure - Fix sizeof() mismatch crypto: talitos - Fix return type of current_desc_hdr() crypto: talitos - Endianess in current_desc_hdr() sched: Reenable interrupts in do_sched_yield() sched/deadline: Fix sched_dl_global_validate() x86/apic: Fix x2apic enablement without interrupt remapping ARM: p2v: fix handling of LPAE translation in BE mode x86/mm/ident_map: Check for errors from ident_pud_init() RDMA/rxe: Compute PSN windows correctly ARM: dts: aspeed: s2600wf: Fix VGA memory region location selinux: fix error initialization in inode_doinit_with_dentry() RDMA/bnxt_re: Set queue pair state when being queried soc: qcom: geni: More properly switch to DMA mode soc: mediatek: Check if power domains can be powered on at boot time soc: renesas: rmobile-sysc: Fix some leaks in rmobile_init_pm_domains() drm/tve200: Fix handling of platform_get_irq() error drm/gma500: fix double free of gma_connector perf cs-etm: Move definition of 'traceid_list' global variable from header file perf cs-etm: Change tuple from traceID-CPU# to traceID-metadata md: fix a warning caused by a race between concurrent md_ioctl()s crypto: af_alg - avoid undefined behavior accessing salg_name media: msi2500: assign SPI bus number dynamically quota: Sanity-check quota file headers on load Bluetooth: Fix slab-out-of-bounds read in hci_le_direct_adv_report_evt() serial_core: Check for port state when tty is in error state HID: i2c-hid: add Vero K147 to descriptor override scsi: megaraid_sas: Check user-provided offsets coresight: tmc-etr: Check if page is valid before dma_map_page() ARM: dts: exynos: fix USB 3.0 pins supply being turned off on Odroid XU ARM: dts: exynos: fix USB 3.0 VBUS control and over-current pins on Exynos5410 ARM: dts: exynos: fix roles of USB 3.0 ports on Odroid XU usb: chipidea: ci_hdrc_imx: Pass DISABLE_DEVICE_STREAMING flag to imx6ul USB: gadget: f_rndis: fix bitrate for SuperSpeed and above usb: gadget: f_fs: Re-use SS descriptors for SuperSpeedPlus USB: gadget: f_midi: setup SuperSpeed Plus descriptors USB: gadget: f_acm: add support for SuperSpeed Plus USB: serial: option: add interface-number sanity check to flag handling soc/tegra: fuse: Fix index bug in get_process_id dm table: Remove BUG_ON(in_interrupt()) scsi: mpt3sas: Increase IOCInit request timeout to 30s vxlan: Copy needed_tailroom from lowerdev vxlan: Add needed_headroom for lower device arm64: syscall: exit userspace before unmasking exceptions drm/tegra: sor: Disable clocks on error in tegra_sor_init() kernel/cpu: add arch override for clear_tasks_mm_cpumask() mm handling drm/tegra: replace idr_init() by idr_init_base() ixgbe: avoid premature Rx buffer reuse RDMA/cm: Fix an attempt to use non-valid pointer when cleaning timewait selftests/bpf/test_offload.py: Reset ethtool features after failed setting gpio: eic-sprd: break loop when getting NULL device resource netfilter: x_tables: Switch synchronization to RCU block: factor out requeue handling from dispatch code clk: renesas: r9a06g032: Drop __packed for portability can: softing: softing_netdev_open(): fix error handling xsk: Fix xsk_poll()'s return type scsi: bnx2i: Requires MMU gpio: mvebu: fix potential user-after-free on probe ARM: dts: sun8i: v3s: fix GIC node memory range pinctrl: baytrail: Avoid clearing debounce value when turning it off pinctrl: merrifield: Set default bias in case no particular value given x86/resctrl: Fix incorrect local bandwidth when mba_sc is enabled x86/resctrl: Remove unused struct mbm_state::chunks_bw arm64: Change .weak to SYM_FUNC_START_WEAK_PI for arch/arm64/lib/mem*.S arm64: lse: Fix LSE atomics with LLVM arm64: lse: fix LSE atomics with LLVM's integrated assembler drm: fix drm_dp_mst_port refcount leaks in drm_dp_mst_allocate_vcpi drm/xen-front: Fix misused IS_ERR_OR_NULL checks serial: 8250_omap: Avoid FIFO corruption caused by MDR1 access ALSA: pcm: oss: Fix potential out-of-bounds shift USB: sisusbvga: Make console support depend on BROKEN USB: UAS: introduce a quirk to set no_write_same xhci: Give USB2 ports time to enter U3 in bus suspend ALSA: usb-audio: Fix control 'access overflow' errors from chmap ALSA: usb-audio: Fix potential out-of-bounds shift USB: add RESET_RESUME quirk for Snapscan 1212 USB: dummy-hcd: Fix uninitialized array use in init() ktest.pl: If size of log is too big to email, email error message net: bridge: vlan: fix error return code in __vlan_add() net: stmmac: dwmac-meson8b: fix mask definition of the m250_sel mux net: stmmac: delete the eee_ctrl_timer after napi disabled net/mlx4_en: Handle TX error CQE lan743x: fix for potential NULL pointer dereference with bare card net/mlx4_en: Avoid scheduling restart task if it is already running tcp: fix cwnd-limited bug for TSO deferral where we send nothing tcp: select sane initial rcvq_space.space for big MSS net: stmmac: free tx skb buffer in stmmac_resume() mac80211: mesh: fix mesh_pathtbl_init() error path PCI: qcom: Add missing reset for ipq806x compiler.h: fix barrier_data() on clang x86/apic/vector: Fix ordering in vector assignment x86/membarrier: Get rid of a dubious optimization x86/mm/mem_encrypt: Fix definition of PMD_FLAGS_DEC_WP scsi: be2iscsi: Revert "Fix a theoretical leak in beiscsi_create_eqs()" kbuild: avoid static_assert for genksyms mmc: block: Fixup condition for CMD13 polling for RPMB requests pinctrl: amd: remove debounce filter setting in IRQ type setting Input: i8042 - add Acer laptops to the i8042 reset list Input: cm109 - do not stomp on control URB platform/x86: intel-vbtn: Support for tablet mode on HP Pavilion 13 x360 PC platform/x86: acer-wmi: add automatic keyboard background light toggle key as KEY_LIGHTS_TOGGLE platform/x86: thinkpad_acpi: Add BAT1 is primary battery quirk for Thinkpad Yoga 11e 4th gen platform/x86: thinkpad_acpi: Do not report SW_TABLET_MODE on Yoga 11e soc: fsl: dpio: Get the cpumask through cpumask_of(cpu) irqchip/gic-v3-its: Unconditionally save/restore the ITS state on suspend scsi: ufs: Make sure clk scaling happens only when HBA is runtime ACTIVE ARC: stack unwinding: don't assume non-current task is sleeping powerpc: Drop -me200 addition to build flags iwlwifi: mvm: fix kernel panic in case of assert during CSA arm64: dts: rockchip: Assign a fixed index to mmc devices on rk3399 boards. iwlwifi: pcie: limit memory read spin time spi: bcm2835aux: Restore err assignment in bcm2835aux_spi_probe spi: bcm2835aux: Fix use-after-free on unbind x86/lib: Change .weak to SYM_FUNC_START_WEAK for arch/x86/lib/mem*_64.S Kbuild: do not emit debug info for assembly with LLVM_IAS=1 ANDROID: GKI: Update the ABI xml representation ANDROID: Incremental fs: Set credentials before reading/writing ANDROID: Incremental fs: Fix incfs_test use of atol, open ANDROID: Incremental fs: Change per UID timeouts to microseconds ANDROID: Incremental fs: Add v2 feature flag ANDROID: Incremental fs: Add zstd feature flag Linux 4.19.163 Revert "geneve: pull IP header before ECN decapsulation" x86/insn-eval: Use new for_each_insn_prefix() macro to loop over prefixes bytes netfilter: nf_tables: avoid false-postive lockdep splat Input: i8042 - fix error return code in i8042_setup_aux() dm writecache: remove BUG() and fail gracefully instead i2c: qup: Fix error return code in qup_i2c_bam_schedule_desc() gfs2: check for empty rgrp tree in gfs2_ri_update tracing: Fix userstacktrace option for instances spi: bcm2835: Release the DMA channel if probe fails after dma_init spi: bcm2835: Fix use-after-free on unbind spi: bcm-qspi: Fix use-after-free on unbind spi: Introduce device-managed SPI controller allocation iommu/amd: Set DTE[IntTabLen] to represent 512 IRTEs speakup: Reject setting the speakup line discipline outside of speakup i2c: imx: Check for I2SR_IAL after every byte i2c: imx: Fix reset of I2SR_IAL flag x86/uprobes: Do not use prefixes.nbytes when looping over prefixes.bytes mm/swapfile: do not sleep with a spin lock held mm: list_lru: set shrinker map bit when child nr_items is not zero dm: remove invalid sparse __acquires and __releases annotations dm writecache: fix the maximum number of arguments scsi: mpt3sas: Fix ioctl timeout i2c: imx: Don't generate STOP condition if arbitration has been lost cifs: fix potential use-after-free in cifs_echo_request() ftrace: Fix updating FTRACE_FL_TRAMP ALSA: hda/generic: Add option to enforce preferred_dacs pairs ALSA: hda/realtek - Add new codec supported for ALC897 ALSA: hda/realtek: Enable headset of ASUS UX482EG & B9400CEA with ALC294 ALSA: hda/realtek: Add mute LED quirk to yet another HP x360 model tty: Fix ->session locking tty: Fix ->pgrp locking in tiocspgrp() USB: serial: option: fix Quectel BG96 matching USB: serial: option: add support for Thales Cinterion EXS82 USB: serial: option: add Fibocom NL668 variants USB: serial: ch341: sort device-id entries USB: serial: ch341: add new Product ID for CH341A USB: serial: kl5kusb105: fix memleak on open usb: gadget: f_fs: Use local copy of descriptors for userspace copy pinctrl: baytrail: Fix pin being driven low for a while on gpiod_get(..., GPIOD_OUT_HIGH) pinctrl: baytrail: Replace WARN with dev_info_once when setting direct-irq pin to output ANDROID: Add symbol of get_next_event_cpu back ANDROID: x86: configs: gki: add missing CONFIG_BLK_CGROUP ANDROID: Add allowed symbols from sctp.ko and qrtr.ko Linux 4.19.162 RDMA/i40iw: Address an mmap handler exploit in i40iw tracing: Remove WARN_ON in start_thread() Input: i8042 - add ByteSpeed touchpad to noloop table Input: xpad - support Ardwiino Controllers ALSA: usb-audio: US16x08: fix value count for level meters dt-bindings: net: correct interrupt flags in examples chelsio/chtls: fix panic during unload reload chtls net/mlx5: Fix wrong address reclaim when command interface is down net: mvpp2: Fix error return code in mvpp2_open() chelsio/chtls: fix a double free in chtls_setkey() net: pasemi: fix error return code in pasemi_mac_open() cxgb3: fix error return code in t3_sge_alloc_qset() net/x25: prevent a couple of overflows net: ip6_gre: set dev->hard_header_len when using header_ops geneve: pull IP header before ECN decapsulation ibmvnic: Fix TX completion error handling ibmvnic: Ensure that SCRQ entry reads are correctly ordered ipv4: Fix tos mask in inet_rtm_getroute() netfilter: bridge: reset skb->pkt_type after NF_INET_POST_ROUTING traversal bonding: wait for sysfs kobject destruction before freeing struct slave i40e: Fix removing driver while bare-metal VFs pass traffic ibmvnic: fix call_netdevice_notifiers in do_reset net/tls: Protect from calling tls_dev_del for TLS RX twice usbnet: ipheth: fix connectivity with iOS 14 tun: honor IOCB_NOWAIT flag tcp: Set INET_ECN_xmit configuration in tcp_reinit_congestion_control sock: set sk_err to ee_errno on dequeue from errq rose: Fix Null pointer dereference in rose_send_frame() net/tls: missing received data after fast remote close net/af_iucv: set correct sk_protocol for child sockets ipv6: addrlabel: fix possible memory leak in ip6addrlbl_net_init FROMLIST: Kbuild: do not emit debug info for assembly with LLVM_IAS=1 ANDROID: kbuild: use grep -F instead of fgrep ANDROID: GKI: usb: gadget: support claiming indexed endpoints by name UPSTREAM: arm64: sysreg: Clean up instructions for modifying PSTATE fields Revert "Revert "ANDROID: clang: update to 11.0.5"" ANDROID: kbuild: speed up ksym_dep_filter Revert "drm/atomic_helper: Stop modesets on unregistered connectors harder" Linux 4.19.161 USB: core: Fix regression in Hercules audio card x86/resctrl: Add necessary kernfs_put() calls to prevent refcount leak x86/resctrl: Remove superfluous kernfs_get() calls to prevent refcount leak x86/speculation: Fix prctl() when spectre_v2_user={seccomp,prctl},ibpb usb: gadget: Fix memleak in gadgetfs_fill_super USB: quirks: Add USB_QUIRK_DISCONNECT_SUSPEND quirk for Lenovo A630Z TIO built-in usb-audio card usb: gadget: f_midi: Fix memleak in f_midi_alloc USB: core: Change %pK for __user pointers to %px perf probe: Fix to die_entrypc() returns error correctly can: m_can: fix nominal bitiming tseg2 min for version >= 3.1 platform/x86: toshiba_acpi: Fix the wrong variable assignment platform/x86: thinkpad_acpi: Send tablet mode switch at wakeup time can: gs_usb: fix endianess problem with candleLight firmware efivarfs: revert "fix memory leak in efivarfs_create()" optee: add writeback to valid memory type ibmvnic: fix NULL pointer dereference in ibmvic_reset_crq ibmvnic: fix NULL pointer dereference in reset_sub_crq_queues net: ena: set initial DMA width to avoid intel iommu issue nfc: s3fwrn5: use signed integer for parsing GPIO numbers IB/mthca: fix return value of error branch in mthca_init_cq() s390/qeth: fix tear down of async TX buffers cxgb4: fix the panic caused by non smac rewrite bnxt_en: Release PCI regions when DMA mask setup fails during probe. video: hyperv_fb: Fix the cache type when mapping the VRAM bnxt_en: fix error return code in bnxt_init_board() bnxt_en: fix error return code in bnxt_init_one() scsi: ufs: Fix race between shutdown and runtime resume flow ARM: dts: dra76x: m_can: fix order of clocks batman-adv: set .owner to THIS_MODULE phy: tegra: xusb: Fix dangling pointer on probe failure xtensa: uaccess: Add missing __user to strncpy_from_user() prototype perf/x86: fix sysfs type mismatches scsi: target: iscsi: Fix cmd abort fabric stop race scsi: libiscsi: Fix NOP race condition dmaengine: pl330: _prep_dma_memcpy: Fix wrong burst size nvme: free sq/cq dbbuf pointers when dbbuf set fails proc: don't allow async path resolution of /proc/self components HID: Add Logitech Dinovo Edge battery quirk x86/xen: don't unbind uninitialized lock_kicker_irq dmaengine: xilinx_dma: use readl_poll_timeout_atomic variant HID: add HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE for Gamevice devices HID: hid-sensor-hub: Fix issue with devices with no report ID Input: i8042 - allow insmod to succeed on devices without an i8042 controller HID: add support for Sega Saturn HID: cypress: Support Varmilo Keyboards' media hotkeys ALSA: hda/hdmi: fix incorrect locking in hdmi_pcm_close drm/atomic_helper: Stop modesets on unregistered connectors harder arm64: pgtable: Ensure dirty bit is preserved across pte_wrprotect() arm64: pgtable: Fix pte_accessible() KVM: x86: Fix split-irqchip vs interrupt injection window request KVM: x86: handle !lapic_in_kernel case in kvm_cpu_*_extint KVM: arm64: vgic-v3: Drop the reporting of GICR_TYPER.Last for userspace wireless: Use linux/stddef.h instead of stddef.h btrfs: fix lockdep splat when reading qgroup config on mount btrfs: don't access possibly stale fs_info data for printing duplicate device netfilter: clear skb->next in NF_HOOK_LIST() perf event: Check ref_reloc_sym before using it ANDROID: vmlinux.lds.h: merge compound literal sections BACKPORT: sched/fair: Fix overutilized update in enqueue_task_fair() Linux 4.19.160 mm/userfaultfd: do not access vma->vm_mm after calling handle_userfault() x86/microcode/intel: Check patch signature before saving microcode for early loading seccomp: Set PF_SUPERPRIV when checking capability ptrace: Set PF_SUPERPRIV when checking capability s390/dasd: fix null pointer dereference for ERP requests s390/cpum_sf.c: fix file permission for cpum_sfb_size mac80211: free sta in sta_info_insert_finish() on errors mac80211: minstrel: fix tx status processing corner case mac80211: minstrel: remove deferred sampling code xtensa: disable preemption around cache alias management calls regulator: workaround self-referent regulators regulator: avoid resolve_supply() infinite recursion regulator: fix memory leak with repeated set_machine_constraints() regulator: pfuze100: limit pfuze-support-disable-sw to pfuze{100,200} iio: accel: kxcjk1013: Add support for KIOX010A ACPI DSM for setting tablet-mode iio: accel: kxcjk1013: Replace is_smo8500_device with an acpi_type enum ext4: fix bogus warning in ext4_update_dx_flag() staging: rtl8723bs: Add 024c:0627 to the list of SDIO device-ids efivarfs: fix memory leak in efivarfs_create() tty: serial: imx: keep console clocks always on ALSA: hda/realtek: Add some Clove SSID in the ALC293(ALC1220) ALSA: mixart: Fix mutex deadlock ALSA: ctl: fix error path at adding user-defined element set ALSA: usb-audio: Add delay quirk for all Logitech USB devices ALSA: firewire: Clean up a locking issue in copy_resp_to_buf() speakup: Do not let the line discipline be used several times libfs: fix error cast of negative value in simple_attr_write() efi/x86: Free efi_pgd with free_pages() xfs: revert "xfs: fix rmap key and record comparison functions" fail_function: Remove a redundant mutex unlock regulator: ti-abb: Fix array out of bound read access on the first transition xfs: strengthen rmap record flags checking xfs: fix the minrecs logic when dealing with inode root child blocks can: kvaser_usb: kvaser_usb_hydra: Fix KCAN bittiming limits drm/sun4i: dw-hdmi: fix error return code in sun8i_dw_hdmi_bind() MIPS: Alchemy: Fix memleak in alchemy_clk_setup_cpu ASoC: qcom: lpass-platform: Fix memory leak can: m_can: m_can_handle_state_change(): fix state change can: peak_usb: fix potential integer overflow on shift of a int can: mcba_usb: mcba_usb_start_xmit(): first fill skb, then pass to can_put_echo_skb() can: ti_hecc: Fix memleak in ti_hecc_probe can: dev: can_restart(): post buffer from the right context can: af_can: prevent potential access of uninitialized member in canfd_rcv() can: af_can: prevent potential access of uninitialized member in can_rcv() ip_tunnels: Set tunnel option flag when tunnel metadata is present perf lock: Don't free "lock_seq_stat" if read_count isn't zero Input: resistive-adc-touch - fix kconfig dependency on IIO_BUFFER ARM: dts: imx50-evk: Fix the chip select 1 IOMUX arm: dts: imx6qdl-udoo: fix rgmii phy-mode for ksz9031 phy arm64: dts: allwinner: h5: OrangePi Prime: Fix ethernet node MIPS: export has_transparent_hugepage() for modules Input: adxl34x - clean up a data type in adxl34x_probe() arm64: dts: allwinner: a64: bananapi-m64: Enable RGMII RX/TX delay on PHY ARM: dts: sun8i: a83t: Enable both RGMII RX/TX delay on Ethernet PHY ARM: dts: sun8i: h3: orangepi-plus2e: Enable RGMII RX/TX delay on Ethernet PHY Revert "arm: sun8i: orangepi-pc-plus: Set EMAC activity LEDs to active high" ARM: dts: sun8i: r40: bananapi-m2-ultra: Fix ethernet node arm64: dts: allwinner: h5: OrangePi PC2: Fix ethernet node arm64: dts: allwinner: a64: Pine64 Plus: Fix ethernet node vfs: remove lockdep bogosity in __sb_start_write arm64: psci: Avoid printing in cpu_psci_cpu_die() ACPI: button: Add DMI quirk for Medion Akoya E2228T selftests: kvm: Fix the segment descriptor layout to match the actual layout scsi: ufs: Fix unbalanced scsi_block_reqs_cnt caused by ufshcd_hold() pinctrl: rockchip: enable gpio pclk for rockchip_gpio_to_irq net: ftgmac100: Fix crash when removing driver net/ncsi: Fix netlink registration net: usb: qmi_wwan: Set DTR quirk for MR400 net/mlx5: Disable QoS when min_rates on all VFs are zero tcp: only postpone PROBE_RTT if RTT is < current min_rtt estimate sctp: change to hold/put transport for proto_unreach_timer qlcnic: fix error return code in qlcnic_83xx_restart_hw() qed: fix error return code in qed_iwarp_ll2_start() page_frag: Recover from memory pressure net: x25: Increase refcnt of "struct x25_neigh" in x25_rx_call_request net: qualcomm: rmnet: Fix incorrect receive packet handling during cleanup net/mlx4_core: Fix init_hca fields offset netlabel: fix an uninitialized warning in netlbl_unlabel_staticlist() netlabel: fix our progress tracking in netlbl_unlabel_staticlist() net: Have netpoll bring-up DSA management interface net: dsa: mv88e6xxx: Avoid VTU corruption on 6097 net: bridge: add missing counters to ndo_get_stats64 callback net: b44: fix error return code in b44_init_one() mlxsw: core: Use variable timeout for EMAD retries lan743x: prevent entire kernel HANG on open, for some platforms lan743x: fix issue causing intermittent kernel log warnings inet_diag: Fix error path to cancel the meseage in inet_req_diag_fill() devlink: Add missing genlmsg_cancel() in devlink_nl_sb_port_pool_fill() bnxt_en: read EEPROM A2h address using page 0 atm: nicstar: Unmap DMA on send error ah6: fix error return code in ah6_input() Linux 4.19.159 ACPI: GED: fix -Wformat KVM: x86: clflushopt should be treated as a no-op by emulation can: proc: can_remove_proc(): silence remove_proc_entry warning mac80211: always wind down STA state Input: sunkbd - avoid use-after-free in teardown paths powerpc/8xx: Always fault when _PAGE_ACCESSED is not set Revert "perf cs-etm: Move definition of 'traceid_list' global variable from header file" powerpc/64s: flush L1D after user accesses powerpc/uaccess: Evaluate macro arguments once, before user access is allowed powerpc: Fix __clear_user() with KUAP enabled powerpc: Implement user_access_begin and friends powerpc: Add a framework for user access tracking powerpc/64s: flush L1D on kernel entry powerpc/64s: move some exception handlers out of line ANDROID: GKI: Update ABI for incfs and dm-user Revert "ANDROID: Add dependencies of dm-user.ko" ANDROID: Incremental fs: Add zstd compression support ANDROID: Incremental fs: Small improvements ANDROID: Incremental fs: Initialize mount options correctly ANDROID: Incremental fs: Fix read_log_test which failed sporadically ANDROID: Incremental fs: Fix misuse of cpu_to_leXX and poll return ANDROID: Incremental fs: Add per UID read timeouts ANDROID: Incremental fs: Add .incomplete folder ANDROID: Incremental fs: Fix dangling else ANDROID: Incremental fs: Fix uninitialized variable ANDROID: Incremental fs: Fix filled block count from get filled blocks ANDROID: Incremental fs: Add hash block counts to IOC_IOCTL_GET_BLOCK_COUNT ANDROID: Incremental fs: Add INCFS_IOC_GET_BLOCK_COUNT ANDROID: Incremental fs: Make compatible with existing files ANDROID: Incremental fs: Remove block HASH flag ANDROID: Incremental fs: Remove back links and crcs ANDROID: Incremental fs: Remove attributes from file ANDROID: Incremental fs: Add .blocks_written file ANDROID: Incremental fs: Separate pseudo-file code ANDROID: Incremental fs: Add UID to pending_read ANDROID: Incremental fs: Create mapped file ANDROID: Incremental fs: Don't allow renaming .index directory. ANDROID: Incremental fs: Fix incfs to work on virtio-9p ANDROID: Incremental fs: Allow running a single test ANDROID: Incremental fs: Adding perf test ANDROID: Incremental fs: Stress tool ANDROID: Incremental fs: Use R/W locks to read/write segment blockmap. ANDROID: Incremental fs: Remove unnecessary dependencies ANDROID: Incremental fs: Remove annoying pr_debugs ANDROID: Incremental fs: dentry_revalidate should not return -EBADF. ANDROID: Incremental fs: Fix minor bugs ANDROID: Incremental fs: RCU locks instead of mutex for pending_reads. ANDROID: Incremental fs: fix up attempt to copy structures with READ/WRITE_ONCE Revert "ANDROID: clang: update to 11.0.5" Linux 4.19.158 Convert trailing spaces and periods in path components net: sch_generic: fix the missing new qdisc assignment bug reboot: fix overflow parsing reboot cpu number Revert "kernel/reboot.c: convert simple_strtoul to kstrtoint" perf/core: Fix race in the perf_mmap_close() function perf scripting python: Avoid declaring function pointers with a visibility attribute x86/speculation: Allow IBPB to be conditionally enabled on CPUs with always-on STIBP random32: make prandom_u32() output unpredictable r8169: fix potential skb double free in an error path vrf: Fix fast path output packet handling with async Netfilter rules tipc: fix memory leak in tipc_topsrv_start() net/x25: Fix null-ptr-deref in x25_connect net: Update window_clamp if SOCK_RCVBUF is set net/af_iucv: fix null pointer dereference on shutdown IPv6: Set SIT tunnel hard_header_len to zero swiotlb: fix "x86: Don't panic if can not alloc buffer for swiotlb" erofs: derive atime instead of leaving it empty pinctrl: amd: fix incorrect way to disable debounce filter pinctrl: amd: use higher precision for 512 RtcClk drm/gma500: Fix out-of-bounds access to struct drm_device.vblank[] don't dump the threads that had been already exiting when zapped. mmc: renesas_sdhi_core: Add missing tmio_mmc_host_free() at remove gpio: pcie-idio-24: Enable PEX8311 interrupts gpio: pcie-idio-24: Fix IRQ Enable Register value gpio: pcie-idio-24: Fix irq mask when masking selinux: Fix error return code in sel_ib_pkey_sid_slow() btrfs: fix potential overflow in cluster_pages_for_defrag on 32bit arch ocfs2: initialize ip_next_orphan futex: Don't enable IRQs unconditionally in put_pi_state() mei: protect mei_cl_mtu from null dereference xhci: hisilicon: fix refercence leak in xhci_histb_probe usb: cdc-acm: Add DISABLE_ECHO for Renesas USB Download mode uio: Fix use-after-free in uio_unregister_device() thunderbolt: Add the missed ida_simple_remove() in ring_request_msix() thunderbolt: Fix memory leak if ida_simple_get() fails in enumerate_services() btrfs: dev-replace: fail mount if we don't have replace item with target device btrfs: ref-verify: fix memory leak in btrfs_ref_tree_mod ext4: unlock xattr_sem properly in ext4_inline_data_truncate() ext4: correctly report "not supported" for {usr,grp}jquota when !CONFIG_QUOTA perf: Fix get_recursion_context() cosa: Add missing kfree in error path of cosa_write of/address: Fix of_node memory leak in of_dma_is_coherent xfs: fix a missing unlock on error in xfs_fs_map_blocks lan743x: fix "BUG: invalid wait context" when setting rx mode xfs: fix brainos in the refcount scrubber's rmap fragment processor xfs: fix rmap key and record comparison functions xfs: set the unwritten bit in rmap lookup flags in xchk_bmap_get_rmapextents xfs: fix flags argument to rmap lookup when converting shared file rmaps nbd: fix a block_device refcount leak in nbd_release pinctrl: aspeed: Fix GPI only function problem. ARM: 9019/1: kprobes: Avoid fortify_panic() when copying optprobe template pinctrl: intel: Set default bias in case no particular value given mfd: sprd: Add wakeup capability for PMIC IRQ tick/common: Touch watchdog in tick_unfreeze() on all CPUs tpm_tis: Disable interrupts on ThinkPad T490s selftests: proc: fix warning: _GNU_SOURCE redefined vfio: platform: fix reference leak in vfio_platform_open s390/smp: move rcu_cpu_starting() earlier iommu/amd: Increase interrupt remapping table limit to 512 entries scsi: scsi_dh_alua: Avoid crash during alua_bus_detach() cfg80211: regulatory: Fix inconsistent format argument mac80211: fix use of skb payload instead of header drm/amd/pm: do not use ixFEATURE_STATUS for checking smc running drm/amd/pm: perform SMC reset on suspend/hibernation drm/amdgpu: perform srbm soft reset always on SDMA resume scsi: hpsa: Fix memory leak in hpsa_init_one() gfs2: check for live vs. read-only file system in gfs2_fitrim gfs2: Add missing truncate_inode_pages_final for sd_aspace gfs2: Free rd_bits later in gfs2_clear_rgrpd to fix use-after-free usb: gadget: goku_udc: fix potential crashes in probe crypto: arm64/aes-modes - get rid of literal load of addend vector netfilter: use actual socket sk rather than skb sk when routing harder ath9k_htc: Use appropriate rs_datalen type Btrfs: fix missing error return if writeback for extent buffer never started tpm: efi: Don't create binary_bios_measurements file for an empty log xfs: fix scrub flagging rtinherit even if there is no rt device xfs: flush new eof page on truncate to avoid post-eof corruption can: flexcan: remove FLEXCAN_QUIRK_DISABLE_MECR quirk for LS1021A can: peak_canfd: pucan_handle_can_rx(): fix echo management when loopback is on can: peak_usb: peak_usb_get_ts_time(): fix timestamp wrapping can: peak_usb: add range checking in decode operations can: can_create_echo_skb(): fix echo skb generation: always use skb_clone() can: dev: __can_get_echo_skb(): fix real payload length return value for RTR frames can: dev: can_get_echo_skb(): prevent call to kfree_skb() in hard IRQ context can: rx-offload: don't call kfree_skb() from IRQ context ALSA: hda: prevent undefined shift in snd_hdac_ext_bus_get_link() perf tools: Add missing swap for ino_generation netfilter: ipset: Update byte and packet counters regardless of whether they match xfs: set xefi_discard when creating a deferred agfl free log intent item net: xfrm: fix a race condition during allocing spi hv_balloon: disable warning when floor reached genirq: Let GENERIC_IRQ_IPI select IRQ_DOMAIN_HIERARCHY btrfs: reschedule when cloning lots of extents btrfs: sysfs: init devices outside of the chunk_mutex usb: dwc3: gadget: Reclaim extra TRBs after request completion usb: dwc3: gadget: Continue to process pending requests nbd: don't update block size after device is started time: Prevent undefined behaviour in timespec64_to_ns() regulator: defer probe when trying to get voltage from unresolved supply FROMGIT: Input: Add devices for HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE ANDROID: arm64: Fix off-by-one vdso trampoline return value ANDROID: Add dependencies of dm-user.ko UPSTREAM: arm64: vdso: Add -fasynchronous-unwind-tables to cflags UPSTREAM: of: property: Fix create device links for all child-supplier dependencies UPSTREAM: of: property: Do not link to disabled devices UPSTREAM: drm: Fix doc warning in drm_connector_attach_edid_property() UPSTREAM: selinux: fix non-MLS handling in mls_context_to_sid() UPSTREAM: drm/prime: Fix drm_gem_prime_mmap() stack use UPSTREAM: crypto: chacha-generic - fix use as arm64 no-NEON fallback UPSTREAM: slab: store tagged freelist for off-slab slabmgmt UPSTREAM: parisc: Switch from DISCONTIGMEM to SPARSEMEM UPSTREAM: cgroup: Move cgroup_parse_float() implementation out of CONFIG_SYSFS UPSTREAM: fork: don't check parent_tidptr with CLONE_PIDFD UPSTREAM: vdso: Remove superfluous #ifdef __KERNEL__ in vdso/datapage.h UPSTREAM: arm64: compat: No need for pre-ARMv7 barriers on an ARMv8 system UPSTREAM: timekeeping/vsyscall: Use __iter_div_u64_rem() UPSTREAM: kasan: remove clang version check for KASAN_STACK UPSTREAM: page flags: prioritize kasan bits over last-cpuid UPSTREAM: timekeeping/vsyscall: Prevent math overflow in BOOTTIME update UPSTREAM: kcm: disable preemption in kcm_parse_func_strparser() UPSTREAM: cfg80211: validate SSID/MBSSID element ordering assumption UPSTREAM: MIPS: VDSO: Fix build for binutils < 2.25 UPSTREAM: virt_wifi: fix refcnt leak in module exit routine UPSTREAM: sched/topology: Allow sched_asym_cpucapacity to be disabled UPSTREAM: scripts/tools-support-relr.sh: un-quote variables UPSTREAM: fork: fix pidfd_poll()'s return type UPSTREAM: virt_wifi: fix use-after-free in virt_wifi_newlink() UPSTREAM: of/platform: Unconditionally pause/resume sync state during kernel init UPSTREAM: selinux: ensure the policy has been loaded before reading the sidtab stats UPSTREAM: raid6/test: fix a compilation error UPSTREAM: PM: hibernate: fix crashes with init_on_free=1 UPSTREAM: ARM: bcm2835_defconfig: Explicitly restore CONFIG_DEBUG_FS UPSTREAM: ARM: socfpga_defconfig: Add back DEBUG_FS UPSTREAM: binderfs: use refcount for binder control devices too UPSTREAM: um: Fix header inclusion UPSTREAM: PM: sleep: wakeup: Skip wakeup_source_sysfs_remove() if device is not there UPSTREAM: Input: fix stale timestamp on key autorepeat events UPSTREAM: mm/filemap.c: don't bother dropping mmap_sem for zero size readahead UPSTREAM: arm64: vdso: don't free unallocated pages UPSTREAM: usb: typec: altmode: Fix typec_altmode_get_partner sometimes returning an invalid pointer UPSTREAM: ipv6: ndisc: RFC-ietf-6man-ra-pref64-09 is now published as RFC8781 UPSTREAM: s390/setup: init jump labels before command line parsing UPSTREAM: dma-buf: free dmabuf->name in dma_buf_release() UPSTREAM: driver core: Don't do deferred probe in parallel with kernel_init thread UPSTREAM: fscrypt: restrict IV_INO_LBLK_* to AES-256-XTS UPSTREAM: fscrypt: use smp_load_acquire() for fscrypt_prepared_key UPSTREAM: mm/page_alloc: silence a KASAN false positive UPSTREAM: ARM64: vdso32: Install vdso32 from vdso_install UPSTREAM: fscrypt: restrict IV_INO_LBLK_32 to ino_bits <= 32 UPSTREAM: coresight: tmc: Fix bad register address for CLAIM UPSTREAM: coresight: etm4x: Fix unused function warning UPSTREAM: coresight: etm4x: Fix use-after-free of per-cpu etm drvdata UPSTREAM: coresight: etm4x: Fix save/restore during cpu idle UPSTREAM: coresight: etm4x: Handle unreachable sink in perf mode UPSTREAM: coresight: etm4x: Fix issues on trcseqevr access UPSTREAM: coresight: etm: perf: Fix warning caused by etm_setup_aux failure UPSTREAM: coresight: etm4x: Fix save and restore of TRCVMIDCCTLR1 register Change-Id: I484731476d503d3b60e4d072fcf8e94fbff8c2e2 Signed-off-by: UtsavBalar1231 <utsavbalar1231@gmail.com>
6906 lines
202 KiB
Perl
Executable File
6906 lines
202 KiB
Perl
Executable File
#!/usr/bin/env perl
|
|
# SPDX-License-Identifier: GPL-2.0
|
|
#
|
|
# (c) 2001, Dave Jones. (the file handling bit)
|
|
# (c) 2005, Joel Schopp <jschopp@austin.ibm.com> (the ugly bit)
|
|
# (c) 2007,2008, Andy Whitcroft <apw@uk.ibm.com> (new conditions, test suite)
|
|
# (c) 2008-2010 Andy Whitcroft <apw@canonical.com>
|
|
# (c) 2010-2018 Joe Perches <joe@perches.com>
|
|
|
|
use strict;
|
|
use warnings;
|
|
use POSIX;
|
|
use File::Basename;
|
|
use Cwd 'abs_path';
|
|
use Term::ANSIColor qw(:constants);
|
|
use Encode qw(decode encode);
|
|
|
|
use constant BEFORE_SHORTTEXT => 0;
|
|
use constant IN_SHORTTEXT_BLANKLINE => 1;
|
|
use constant IN_SHORTTEXT => 2;
|
|
use constant AFTER_SHORTTEXT => 3;
|
|
use constant CHECK_NEXT_SHORTTEXT => 4;
|
|
use constant SHORTTEXT_LIMIT => 75;
|
|
|
|
my $P = $0;
|
|
my $D = dirname(abs_path($P));
|
|
|
|
my $V = '0.32';
|
|
|
|
use Getopt::Long qw(:config no_auto_abbrev);
|
|
|
|
my $quiet = 0;
|
|
my $tree = 1;
|
|
my $chk_signoff = 1;
|
|
my $chk_patch = 1;
|
|
my $tst_only;
|
|
my $emacs = 0;
|
|
my $terse = 0;
|
|
my $showfile = 0;
|
|
my $file = 0;
|
|
my $git = 0;
|
|
my %git_commits = ();
|
|
my $check = 0;
|
|
my $check_orig = 0;
|
|
my $summary = 1;
|
|
my $mailback = 0;
|
|
my $summary_file = 0;
|
|
my $show_types = 0;
|
|
my $list_types = 0;
|
|
my $fix = 0;
|
|
my $fix_inplace = 0;
|
|
my $root;
|
|
my %debug;
|
|
my %camelcase = ();
|
|
my %use_type = ();
|
|
my @use = ();
|
|
my %ignore_type = ();
|
|
my @ignore = ();
|
|
my $help = 0;
|
|
my $configuration_file = ".checkpatch.conf";
|
|
my $max_line_length = 80;
|
|
my $ignore_perl_version = 0;
|
|
my $minimum_perl_version = 5.10.0;
|
|
my $min_conf_desc_length = 4;
|
|
my $spelling_file = "$D/spelling.txt";
|
|
my $codespell = 0;
|
|
my $codespellfile = "/usr/share/codespell/dictionary.txt";
|
|
my $conststructsfile = "$D/const_structs.checkpatch";
|
|
my $typedefsfile = "";
|
|
my $color = "auto";
|
|
my $allow_c99_comments = 1;
|
|
|
|
sub help {
|
|
my ($exitcode) = @_;
|
|
|
|
print << "EOM";
|
|
Usage: $P [OPTION]... [FILE]...
|
|
Version: $V
|
|
|
|
Options:
|
|
-q, --quiet quiet
|
|
--no-tree run without a kernel tree
|
|
--no-signoff do not check for 'Signed-off-by' line
|
|
--patch treat FILE as patchfile (default)
|
|
--emacs emacs compile window format
|
|
--terse one line per report
|
|
--showfile emit diffed file position, not input file position
|
|
-g, --git treat FILE as a single commit or git revision range
|
|
single git commit with:
|
|
<rev>
|
|
<rev>^
|
|
<rev>~n
|
|
multiple git commits with:
|
|
<rev1>..<rev2>
|
|
<rev1>...<rev2>
|
|
<rev>-<count>
|
|
git merges are ignored
|
|
-f, --file treat FILE as regular source file
|
|
--subjective, --strict enable more subjective tests
|
|
--list-types list the possible message types
|
|
--types TYPE(,TYPE2...) show only these comma separated message types
|
|
--ignore TYPE(,TYPE2...) ignore various comma separated message types
|
|
--show-types show the specific message type in the output
|
|
--max-line-length=n set the maximum line length, if exceeded, warn
|
|
--min-conf-desc-length=n set the min description length, if shorter, warn
|
|
--root=PATH PATH to the kernel tree root
|
|
--no-summary suppress the per-file summary
|
|
--mailback only produce a report in case of warnings/errors
|
|
--summary-file include the filename in summary
|
|
--debug KEY=[0|1] turn on/off debugging of KEY, where KEY is one of
|
|
'values', 'possible', 'type', and 'attr' (default
|
|
is all off)
|
|
--test-only=WORD report only warnings/errors containing WORD
|
|
literally
|
|
--fix EXPERIMENTAL - may create horrible results
|
|
If correctable single-line errors exist, create
|
|
"<inputfile>.EXPERIMENTAL-checkpatch-fixes"
|
|
with potential errors corrected to the preferred
|
|
checkpatch style
|
|
--fix-inplace EXPERIMENTAL - may create horrible results
|
|
Is the same as --fix, but overwrites the input
|
|
file. It's your fault if there's no backup or git
|
|
--ignore-perl-version override checking of perl version. expect
|
|
runtime errors.
|
|
--codespell Use the codespell dictionary for spelling/typos
|
|
(default:/usr/share/codespell/dictionary.txt)
|
|
--codespellfile Use this codespell dictionary
|
|
--typedefsfile Read additional types from this file
|
|
--color[=WHEN] Use colors 'always', 'never', or only when output
|
|
is a terminal ('auto'). Default is 'auto'.
|
|
-h, --help, --version display this help and exit
|
|
|
|
When FILE is - read standard input.
|
|
EOM
|
|
|
|
exit($exitcode);
|
|
}
|
|
|
|
sub uniq {
|
|
my %seen;
|
|
return grep { !$seen{$_}++ } @_;
|
|
}
|
|
|
|
sub list_types {
|
|
my ($exitcode) = @_;
|
|
|
|
my $count = 0;
|
|
|
|
local $/ = undef;
|
|
|
|
open(my $script, '<', abs_path($P)) or
|
|
die "$P: Can't read '$P' $!\n";
|
|
|
|
my $text = <$script>;
|
|
close($script);
|
|
|
|
my @types = ();
|
|
# Also catch when type or level is passed through a variable
|
|
for ($text =~ /(?:(?:\bCHK|\bWARN|\bERROR|&\{\$msg_level})\s*\(|\$msg_type\s*=)\s*"([^"]+)"/g) {
|
|
push (@types, $_);
|
|
}
|
|
@types = sort(uniq(@types));
|
|
print("#\tMessage type\n\n");
|
|
foreach my $type (@types) {
|
|
print(++$count . "\t" . $type . "\n");
|
|
}
|
|
|
|
exit($exitcode);
|
|
}
|
|
|
|
my $conf = which_conf($configuration_file);
|
|
if (-f $conf) {
|
|
my @conf_args;
|
|
open(my $conffile, '<', "$conf")
|
|
or warn "$P: Can't find a readable $configuration_file file $!\n";
|
|
|
|
while (<$conffile>) {
|
|
my $line = $_;
|
|
|
|
$line =~ s/\s*\n?$//g;
|
|
$line =~ s/^\s*//g;
|
|
$line =~ s/\s+/ /g;
|
|
|
|
next if ($line =~ m/^\s*#/);
|
|
next if ($line =~ m/^\s*$/);
|
|
|
|
my @words = split(" ", $line);
|
|
foreach my $word (@words) {
|
|
last if ($word =~ m/^#/);
|
|
push (@conf_args, $word);
|
|
}
|
|
}
|
|
close($conffile);
|
|
unshift(@ARGV, @conf_args) if @conf_args;
|
|
}
|
|
|
|
# Perl's Getopt::Long allows options to take optional arguments after a space.
|
|
# Prevent --color by itself from consuming other arguments
|
|
foreach (@ARGV) {
|
|
if ($_ eq "--color" || $_ eq "-color") {
|
|
$_ = "--color=$color";
|
|
}
|
|
}
|
|
|
|
GetOptions(
|
|
'q|quiet+' => \$quiet,
|
|
'tree!' => \$tree,
|
|
'signoff!' => \$chk_signoff,
|
|
'patch!' => \$chk_patch,
|
|
'emacs!' => \$emacs,
|
|
'terse!' => \$terse,
|
|
'showfile!' => \$showfile,
|
|
'f|file!' => \$file,
|
|
'g|git!' => \$git,
|
|
'subjective!' => \$check,
|
|
'strict!' => \$check,
|
|
'ignore=s' => \@ignore,
|
|
'types=s' => \@use,
|
|
'show-types!' => \$show_types,
|
|
'list-types!' => \$list_types,
|
|
'max-line-length=i' => \$max_line_length,
|
|
'min-conf-desc-length=i' => \$min_conf_desc_length,
|
|
'root=s' => \$root,
|
|
'summary!' => \$summary,
|
|
'mailback!' => \$mailback,
|
|
'summary-file!' => \$summary_file,
|
|
'fix!' => \$fix,
|
|
'fix-inplace!' => \$fix_inplace,
|
|
'ignore-perl-version!' => \$ignore_perl_version,
|
|
'debug=s' => \%debug,
|
|
'test-only=s' => \$tst_only,
|
|
'codespell!' => \$codespell,
|
|
'codespellfile=s' => \$codespellfile,
|
|
'typedefsfile=s' => \$typedefsfile,
|
|
'color=s' => \$color,
|
|
'no-color' => \$color, #keep old behaviors of -nocolor
|
|
'nocolor' => \$color, #keep old behaviors of -nocolor
|
|
'h|help' => \$help,
|
|
'version' => \$help
|
|
) or help(1);
|
|
|
|
help(0) if ($help);
|
|
|
|
list_types(0) if ($list_types);
|
|
|
|
$fix = 1 if ($fix_inplace);
|
|
$check_orig = $check;
|
|
|
|
my $exit = 0;
|
|
|
|
my $perl_version_ok = 1;
|
|
if ($^V && $^V lt $minimum_perl_version) {
|
|
$perl_version_ok = 0;
|
|
printf "$P: requires at least perl version %vd\n", $minimum_perl_version;
|
|
exit(1) if (!$ignore_perl_version);
|
|
}
|
|
|
|
#if no filenames are given, push '-' to read patch from stdin
|
|
if ($#ARGV < 0) {
|
|
push(@ARGV, '-');
|
|
}
|
|
|
|
if ($color =~ /^[01]$/) {
|
|
$color = !$color;
|
|
} elsif ($color =~ /^always$/i) {
|
|
$color = 1;
|
|
} elsif ($color =~ /^never$/i) {
|
|
$color = 0;
|
|
} elsif ($color =~ /^auto$/i) {
|
|
$color = (-t STDOUT);
|
|
} else {
|
|
die "Invalid color mode: $color\n";
|
|
}
|
|
|
|
sub hash_save_array_words {
|
|
my ($hashRef, $arrayRef) = @_;
|
|
|
|
my @array = split(/,/, join(',', @$arrayRef));
|
|
foreach my $word (@array) {
|
|
$word =~ s/\s*\n?$//g;
|
|
$word =~ s/^\s*//g;
|
|
$word =~ s/\s+/ /g;
|
|
$word =~ tr/[a-z]/[A-Z]/;
|
|
|
|
next if ($word =~ m/^\s*#/);
|
|
next if ($word =~ m/^\s*$/);
|
|
|
|
$hashRef->{$word}++;
|
|
}
|
|
}
|
|
|
|
sub hash_show_words {
|
|
my ($hashRef, $prefix) = @_;
|
|
|
|
if (keys %$hashRef) {
|
|
print "\nNOTE: $prefix message types:";
|
|
foreach my $word (sort keys %$hashRef) {
|
|
print " $word";
|
|
}
|
|
print "\n";
|
|
}
|
|
}
|
|
|
|
hash_save_array_words(\%ignore_type, \@ignore);
|
|
hash_save_array_words(\%use_type, \@use);
|
|
|
|
my $dbg_values = 0;
|
|
my $dbg_possible = 0;
|
|
my $dbg_type = 0;
|
|
my $dbg_attr = 0;
|
|
for my $key (keys %debug) {
|
|
## no critic
|
|
eval "\${dbg_$key} = '$debug{$key}';";
|
|
die "$@" if ($@);
|
|
}
|
|
|
|
my $rpt_cleaners = 0;
|
|
|
|
if ($terse) {
|
|
$emacs = 1;
|
|
$quiet++;
|
|
}
|
|
|
|
if ($tree) {
|
|
if (defined $root) {
|
|
if (!top_of_kernel_tree($root)) {
|
|
die "$P: $root: --root does not point at a valid tree\n";
|
|
}
|
|
} else {
|
|
if (top_of_kernel_tree('.')) {
|
|
$root = '.';
|
|
} elsif ($0 =~ m@(.*)/scripts/[^/]*$@ &&
|
|
top_of_kernel_tree($1)) {
|
|
$root = $1;
|
|
}
|
|
}
|
|
|
|
if (!defined $root) {
|
|
print "Must be run from the top-level dir. of a kernel tree\n";
|
|
exit(2);
|
|
}
|
|
}
|
|
|
|
my $emitted_corrupt = 0;
|
|
|
|
our $Ident = qr{
|
|
[A-Za-z_][A-Za-z\d_]*
|
|
(?:\s*\#\#\s*[A-Za-z_][A-Za-z\d_]*)*
|
|
}x;
|
|
our $Storage = qr{extern|static|asmlinkage};
|
|
our $Sparse = qr{
|
|
__user|
|
|
__kernel|
|
|
__force|
|
|
__iomem|
|
|
__must_check|
|
|
__kprobes|
|
|
__ref|
|
|
__refconst|
|
|
__refdata|
|
|
__rcu|
|
|
__private
|
|
}x;
|
|
our $InitAttributePrefix = qr{__(?:mem|cpu|dev|net_|)};
|
|
our $InitAttributeData = qr{$InitAttributePrefix(?:initdata\b)};
|
|
our $InitAttributeConst = qr{$InitAttributePrefix(?:initconst\b)};
|
|
our $InitAttributeInit = qr{$InitAttributePrefix(?:init\b)};
|
|
our $InitAttribute = qr{$InitAttributeData|$InitAttributeConst|$InitAttributeInit};
|
|
|
|
# Notes to $Attribute:
|
|
# We need \b after 'init' otherwise 'initconst' will cause a false positive in a check
|
|
our $Attribute = qr{
|
|
const|
|
|
__percpu|
|
|
__nocast|
|
|
__safe|
|
|
__bitwise|
|
|
__packed__|
|
|
__packed2__|
|
|
__naked|
|
|
__maybe_unused|
|
|
__always_unused|
|
|
__noreturn|
|
|
__used|
|
|
__cold|
|
|
__pure|
|
|
__noclone|
|
|
__deprecated|
|
|
__read_mostly|
|
|
__ro_after_init|
|
|
__kprobes|
|
|
$InitAttribute|
|
|
____cacheline_aligned|
|
|
____cacheline_aligned_in_smp|
|
|
____cacheline_internodealigned_in_smp|
|
|
__weak
|
|
}x;
|
|
our $Modifier;
|
|
our $Inline = qr{inline|__always_inline|noinline|__inline|__inline__};
|
|
our $Member = qr{->$Ident|\.$Ident|\[[^]]*\]};
|
|
our $Lval = qr{$Ident(?:$Member)*};
|
|
|
|
our $Int_type = qr{(?i)llu|ull|ll|lu|ul|l|u};
|
|
our $Binary = qr{(?i)0b[01]+$Int_type?};
|
|
our $Hex = qr{(?i)0x[0-9a-f]+$Int_type?};
|
|
our $Int = qr{[0-9]+$Int_type?};
|
|
our $Octal = qr{0[0-7]+$Int_type?};
|
|
our $String = qr{"[X\t]*"};
|
|
our $Float_hex = qr{(?i)0x[0-9a-f]+p-?[0-9]+[fl]?};
|
|
our $Float_dec = qr{(?i)(?:[0-9]+\.[0-9]*|[0-9]*\.[0-9]+)(?:e-?[0-9]+)?[fl]?};
|
|
our $Float_int = qr{(?i)[0-9]+e-?[0-9]+[fl]?};
|
|
our $Float = qr{$Float_hex|$Float_dec|$Float_int};
|
|
our $Constant = qr{$Float|$Binary|$Octal|$Hex|$Int};
|
|
our $Assignment = qr{\*\=|/=|%=|\+=|-=|<<=|>>=|&=|\^=|\|=|=};
|
|
our $Compare = qr{<=|>=|==|!=|<|(?<!-)>};
|
|
our $Arithmetic = qr{\+|-|\*|\/|%};
|
|
our $Operators = qr{
|
|
<=|>=|==|!=|
|
|
=>|->|<<|>>|<|>|!|~|
|
|
&&|\|\||,|\^|\+\+|--|&|\||$Arithmetic
|
|
}x;
|
|
|
|
our $c90_Keywords = qr{do|for|while|if|else|return|goto|continue|switch|default|case|break}x;
|
|
|
|
our $BasicType;
|
|
our $NonptrType;
|
|
our $NonptrTypeMisordered;
|
|
our $NonptrTypeWithAttr;
|
|
our $Type;
|
|
our $TypeMisordered;
|
|
our $Declare;
|
|
our $DeclareMisordered;
|
|
|
|
our $NON_ASCII_UTF8 = qr{
|
|
[\xC2-\xDF][\x80-\xBF] # non-overlong 2-byte
|
|
| \xE0[\xA0-\xBF][\x80-\xBF] # excluding overlongs
|
|
| [\xE1-\xEC\xEE\xEF][\x80-\xBF]{2} # straight 3-byte
|
|
| \xED[\x80-\x9F][\x80-\xBF] # excluding surrogates
|
|
| \xF0[\x90-\xBF][\x80-\xBF]{2} # planes 1-3
|
|
| [\xF1-\xF3][\x80-\xBF]{3} # planes 4-15
|
|
| \xF4[\x80-\x8F][\x80-\xBF]{2} # plane 16
|
|
}x;
|
|
|
|
our $UTF8 = qr{
|
|
[\x09\x0A\x0D\x20-\x7E] # ASCII
|
|
| $NON_ASCII_UTF8
|
|
}x;
|
|
|
|
our $typeC99Typedefs = qr{(?:__)?(?:[us]_?)?int_?(?:8|16|32|64)_t};
|
|
our $typeOtherOSTypedefs = qr{(?x:
|
|
u_(?:char|short|int|long) | # bsd
|
|
u(?:nchar|short|int|long) # sysv
|
|
)};
|
|
our $typeKernelTypedefs = qr{(?x:
|
|
(?:__)?(?:u|s|be|le)(?:8|16|32|64)|
|
|
atomic_t
|
|
)};
|
|
our $typeTypedefs = qr{(?x:
|
|
$typeC99Typedefs\b|
|
|
$typeOtherOSTypedefs\b|
|
|
$typeKernelTypedefs\b
|
|
)};
|
|
|
|
our $zero_initializer = qr{(?:(?:0[xX])?0+$Int_type?|NULL|false)\b};
|
|
|
|
our $logFunctions = qr{(?x:
|
|
printk(?:_ratelimited|_once|_deferred_once|_deferred|)|
|
|
(?:[a-z0-9]+_){1,2}(?:printk|emerg|alert|crit|err|warning|warn|notice|info|debug|dbg|vdbg|devel|cont|WARN)(?:_ratelimited|_once|)|
|
|
TP_printk|
|
|
WARN(?:_RATELIMIT|_ONCE|)|
|
|
panic|
|
|
MODULE_[A-Z_]+|
|
|
seq_vprintf|seq_printf|seq_puts
|
|
)};
|
|
|
|
our $signature_tags = qr{(?xi:
|
|
Signed-off-by:|
|
|
Co-developed-by:|
|
|
Acked-by:|
|
|
Tested-by:|
|
|
Reviewed-by:|
|
|
Reported-by:|
|
|
Suggested-by:|
|
|
To:|
|
|
Cc:
|
|
)};
|
|
|
|
our @typeListMisordered = (
|
|
qr{char\s+(?:un)?signed},
|
|
qr{int\s+(?:(?:un)?signed\s+)?short\s},
|
|
qr{int\s+short(?:\s+(?:un)?signed)},
|
|
qr{short\s+int(?:\s+(?:un)?signed)},
|
|
qr{(?:un)?signed\s+int\s+short},
|
|
qr{short\s+(?:un)?signed},
|
|
qr{long\s+int\s+(?:un)?signed},
|
|
qr{int\s+long\s+(?:un)?signed},
|
|
qr{long\s+(?:un)?signed\s+int},
|
|
qr{int\s+(?:un)?signed\s+long},
|
|
qr{int\s+(?:un)?signed},
|
|
qr{int\s+long\s+long\s+(?:un)?signed},
|
|
qr{long\s+long\s+int\s+(?:un)?signed},
|
|
qr{long\s+long\s+(?:un)?signed\s+int},
|
|
qr{long\s+long\s+(?:un)?signed},
|
|
qr{long\s+(?:un)?signed},
|
|
);
|
|
|
|
our @typeList = (
|
|
qr{void},
|
|
qr{(?:(?:un)?signed\s+)?char},
|
|
qr{(?:(?:un)?signed\s+)?short\s+int},
|
|
qr{(?:(?:un)?signed\s+)?short},
|
|
qr{(?:(?:un)?signed\s+)?int},
|
|
qr{(?:(?:un)?signed\s+)?long\s+int},
|
|
qr{(?:(?:un)?signed\s+)?long\s+long\s+int},
|
|
qr{(?:(?:un)?signed\s+)?long\s+long},
|
|
qr{(?:(?:un)?signed\s+)?long},
|
|
qr{(?:un)?signed},
|
|
qr{float},
|
|
qr{double},
|
|
qr{bool},
|
|
qr{struct\s+$Ident},
|
|
qr{union\s+$Ident},
|
|
qr{enum\s+$Ident},
|
|
qr{${Ident}_t},
|
|
qr{${Ident}_handler},
|
|
qr{${Ident}_handler_fn},
|
|
@typeListMisordered,
|
|
);
|
|
|
|
our $C90_int_types = qr{(?x:
|
|
long\s+long\s+int\s+(?:un)?signed|
|
|
long\s+long\s+(?:un)?signed\s+int|
|
|
long\s+long\s+(?:un)?signed|
|
|
(?:(?:un)?signed\s+)?long\s+long\s+int|
|
|
(?:(?:un)?signed\s+)?long\s+long|
|
|
int\s+long\s+long\s+(?:un)?signed|
|
|
int\s+(?:(?:un)?signed\s+)?long\s+long|
|
|
|
|
long\s+int\s+(?:un)?signed|
|
|
long\s+(?:un)?signed\s+int|
|
|
long\s+(?:un)?signed|
|
|
(?:(?:un)?signed\s+)?long\s+int|
|
|
(?:(?:un)?signed\s+)?long|
|
|
int\s+long\s+(?:un)?signed|
|
|
int\s+(?:(?:un)?signed\s+)?long|
|
|
|
|
int\s+(?:un)?signed|
|
|
(?:(?:un)?signed\s+)?int
|
|
)};
|
|
|
|
our @typeListFile = ();
|
|
our @typeListWithAttr = (
|
|
@typeList,
|
|
qr{struct\s+$InitAttribute\s+$Ident},
|
|
qr{union\s+$InitAttribute\s+$Ident},
|
|
);
|
|
|
|
our @modifierList = (
|
|
qr{fastcall},
|
|
);
|
|
our @modifierListFile = ();
|
|
|
|
our @mode_permission_funcs = (
|
|
["module_param", 3],
|
|
["module_param_(?:array|named|string)", 4],
|
|
["module_param_array_named", 5],
|
|
["debugfs_create_(?:file|u8|u16|u32|u64|x8|x16|x32|x64|size_t|atomic_t|bool|blob|regset32|u32_array)", 2],
|
|
["proc_create(?:_data|)", 2],
|
|
["(?:CLASS|DEVICE|SENSOR|SENSOR_DEVICE|IIO_DEVICE)_ATTR", 2],
|
|
["IIO_DEV_ATTR_[A-Z_]+", 1],
|
|
["SENSOR_(?:DEVICE_|)ATTR_2", 2],
|
|
["SENSOR_TEMPLATE(?:_2|)", 3],
|
|
["__ATTR", 2],
|
|
);
|
|
|
|
#Create a search pattern for all these functions to speed up a loop below
|
|
our $mode_perms_search = "";
|
|
foreach my $entry (@mode_permission_funcs) {
|
|
$mode_perms_search .= '|' if ($mode_perms_search ne "");
|
|
$mode_perms_search .= $entry->[0];
|
|
}
|
|
$mode_perms_search = "(?:${mode_perms_search})";
|
|
|
|
our $mode_perms_world_writable = qr{
|
|
S_IWUGO |
|
|
S_IWOTH |
|
|
S_IRWXUGO |
|
|
S_IALLUGO |
|
|
0[0-7][0-7][2367]
|
|
}x;
|
|
|
|
our %mode_permission_string_types = (
|
|
"S_IRWXU" => 0700,
|
|
"S_IRUSR" => 0400,
|
|
"S_IWUSR" => 0200,
|
|
"S_IXUSR" => 0100,
|
|
"S_IRWXG" => 0070,
|
|
"S_IRGRP" => 0040,
|
|
"S_IWGRP" => 0020,
|
|
"S_IXGRP" => 0010,
|
|
"S_IRWXO" => 0007,
|
|
"S_IROTH" => 0004,
|
|
"S_IWOTH" => 0002,
|
|
"S_IXOTH" => 0001,
|
|
"S_IRWXUGO" => 0777,
|
|
"S_IRUGO" => 0444,
|
|
"S_IWUGO" => 0222,
|
|
"S_IXUGO" => 0111,
|
|
);
|
|
|
|
#Create a search pattern for all these strings to speed up a loop below
|
|
our $mode_perms_string_search = "";
|
|
foreach my $entry (keys %mode_permission_string_types) {
|
|
$mode_perms_string_search .= '|' if ($mode_perms_string_search ne "");
|
|
$mode_perms_string_search .= $entry;
|
|
}
|
|
our $single_mode_perms_string_search = "(?:${mode_perms_string_search})";
|
|
our $multi_mode_perms_string_search = qr{
|
|
${single_mode_perms_string_search}
|
|
(?:\s*\|\s*${single_mode_perms_string_search})*
|
|
}x;
|
|
|
|
sub perms_to_octal {
|
|
my ($string) = @_;
|
|
|
|
return trim($string) if ($string =~ /^\s*0[0-7]{3,3}\s*$/);
|
|
|
|
my $val = "";
|
|
my $oval = "";
|
|
my $to = 0;
|
|
my $curpos = 0;
|
|
my $lastpos = 0;
|
|
while ($string =~ /\b(($single_mode_perms_string_search)\b(?:\s*\|\s*)?\s*)/g) {
|
|
$curpos = pos($string);
|
|
my $match = $2;
|
|
my $omatch = $1;
|
|
last if ($lastpos > 0 && ($curpos - length($omatch) != $lastpos));
|
|
$lastpos = $curpos;
|
|
$to |= $mode_permission_string_types{$match};
|
|
$val .= '\s*\|\s*' if ($val ne "");
|
|
$val .= $match;
|
|
$oval .= $omatch;
|
|
}
|
|
$oval =~ s/^\s*\|\s*//;
|
|
$oval =~ s/\s*\|\s*$//;
|
|
return sprintf("%04o", $to);
|
|
}
|
|
|
|
our $allowed_asm_includes = qr{(?x:
|
|
irq|
|
|
memory|
|
|
time|
|
|
reboot
|
|
)};
|
|
# memory.h: ARM has a custom one
|
|
|
|
# Load common spelling mistakes and build regular expression list.
|
|
my $misspellings;
|
|
my %spelling_fix;
|
|
|
|
if (open(my $spelling, '<', $spelling_file)) {
|
|
while (<$spelling>) {
|
|
my $line = $_;
|
|
|
|
$line =~ s/\s*\n?$//g;
|
|
$line =~ s/^\s*//g;
|
|
|
|
next if ($line =~ m/^\s*#/);
|
|
next if ($line =~ m/^\s*$/);
|
|
|
|
my ($suspect, $fix) = split(/\|\|/, $line);
|
|
|
|
$spelling_fix{$suspect} = $fix;
|
|
}
|
|
close($spelling);
|
|
} else {
|
|
warn "No typos will be found - file '$spelling_file': $!\n";
|
|
}
|
|
|
|
if ($codespell) {
|
|
if (open(my $spelling, '<', $codespellfile)) {
|
|
while (<$spelling>) {
|
|
my $line = $_;
|
|
|
|
$line =~ s/\s*\n?$//g;
|
|
$line =~ s/^\s*//g;
|
|
|
|
next if ($line =~ m/^\s*#/);
|
|
next if ($line =~ m/^\s*$/);
|
|
next if ($line =~ m/, disabled/i);
|
|
|
|
$line =~ s/,.*$//;
|
|
|
|
my ($suspect, $fix) = split(/->/, $line);
|
|
|
|
$spelling_fix{$suspect} = $fix;
|
|
}
|
|
close($spelling);
|
|
} else {
|
|
warn "No codespell typos will be found - file '$codespellfile': $!\n";
|
|
}
|
|
}
|
|
|
|
$misspellings = join("|", sort keys %spelling_fix) if keys %spelling_fix;
|
|
|
|
sub read_words {
|
|
my ($wordsRef, $file) = @_;
|
|
|
|
if (open(my $words, '<', $file)) {
|
|
while (<$words>) {
|
|
my $line = $_;
|
|
|
|
$line =~ s/\s*\n?$//g;
|
|
$line =~ s/^\s*//g;
|
|
|
|
next if ($line =~ m/^\s*#/);
|
|
next if ($line =~ m/^\s*$/);
|
|
if ($line =~ /\s/) {
|
|
print("$file: '$line' invalid - ignored\n");
|
|
next;
|
|
}
|
|
|
|
$$wordsRef .= '|' if ($$wordsRef ne "");
|
|
$$wordsRef .= $line;
|
|
}
|
|
close($file);
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
my $const_structs = "";
|
|
read_words(\$const_structs, $conststructsfile)
|
|
or warn "No structs that should be const will be found - file '$conststructsfile': $!\n";
|
|
|
|
my $typeOtherTypedefs = "";
|
|
if (length($typedefsfile)) {
|
|
read_words(\$typeOtherTypedefs, $typedefsfile)
|
|
or warn "No additional types will be considered - file '$typedefsfile': $!\n";
|
|
}
|
|
$typeTypedefs .= '|' . $typeOtherTypedefs if ($typeOtherTypedefs ne "");
|
|
|
|
sub build_types {
|
|
my $mods = "(?x: \n" . join("|\n ", (@modifierList, @modifierListFile)) . "\n)";
|
|
my $all = "(?x: \n" . join("|\n ", (@typeList, @typeListFile)) . "\n)";
|
|
my $Misordered = "(?x: \n" . join("|\n ", @typeListMisordered) . "\n)";
|
|
my $allWithAttr = "(?x: \n" . join("|\n ", @typeListWithAttr) . "\n)";
|
|
$Modifier = qr{(?:$Attribute|$Sparse|$mods)};
|
|
$BasicType = qr{
|
|
(?:$typeTypedefs\b)|
|
|
(?:${all}\b)
|
|
}x;
|
|
$NonptrType = qr{
|
|
(?:$Modifier\s+|const\s+)*
|
|
(?:
|
|
(?:typeof|__typeof__)\s*\([^\)]*\)|
|
|
(?:$typeTypedefs\b)|
|
|
(?:${all}\b)
|
|
)
|
|
(?:\s+$Modifier|\s+const)*
|
|
}x;
|
|
$NonptrTypeMisordered = qr{
|
|
(?:$Modifier\s+|const\s+)*
|
|
(?:
|
|
(?:${Misordered}\b)
|
|
)
|
|
(?:\s+$Modifier|\s+const)*
|
|
}x;
|
|
$NonptrTypeWithAttr = qr{
|
|
(?:$Modifier\s+|const\s+)*
|
|
(?:
|
|
(?:typeof|__typeof__)\s*\([^\)]*\)|
|
|
(?:$typeTypedefs\b)|
|
|
(?:${allWithAttr}\b)
|
|
)
|
|
(?:\s+$Modifier|\s+const)*
|
|
}x;
|
|
$Type = qr{
|
|
$NonptrType
|
|
(?:(?:\s|\*|\[\])+\s*const|(?:\s|\*\s*(?:const\s*)?|\[\])+|(?:\s*\[\s*\])+)?
|
|
(?:\s+$Inline|\s+$Modifier)*
|
|
}x;
|
|
$TypeMisordered = qr{
|
|
$NonptrTypeMisordered
|
|
(?:(?:\s|\*|\[\])+\s*const|(?:\s|\*\s*(?:const\s*)?|\[\])+|(?:\s*\[\s*\])+)?
|
|
(?:\s+$Inline|\s+$Modifier)*
|
|
}x;
|
|
$Declare = qr{(?:$Storage\s+(?:$Inline\s+)?)?$Type};
|
|
$DeclareMisordered = qr{(?:$Storage\s+(?:$Inline\s+)?)?$TypeMisordered};
|
|
}
|
|
build_types();
|
|
|
|
our $Typecast = qr{\s*(\(\s*$NonptrType\s*\)){0,1}\s*};
|
|
|
|
# Using $balanced_parens, $LvalOrFunc, or $FuncArg
|
|
# requires at least perl version v5.10.0
|
|
# Any use must be runtime checked with $^V
|
|
|
|
our $balanced_parens = qr/(\((?:[^\(\)]++|(?-1))*\))/;
|
|
our $LvalOrFunc = qr{((?:[\&\*]\s*)?$Lval)\s*($balanced_parens{0,1})\s*};
|
|
our $FuncArg = qr{$Typecast{0,1}($LvalOrFunc|$Constant|$String)};
|
|
|
|
our $declaration_macros = qr{(?x:
|
|
(?:$Storage\s+)?(?:[A-Z_][A-Z0-9]*_){0,2}(?:DEFINE|DECLARE)(?:_[A-Z0-9]+){1,6}\s*\(|
|
|
(?:$Storage\s+)?[HLP]?LIST_HEAD\s*\(|
|
|
(?:$Storage\s+)?${Type}\s+uninitialized_var\s*\(|
|
|
(?:SKCIPHER_REQUEST|SHASH_DESC|AHASH_REQUEST)_ON_STACK\s*\(
|
|
)};
|
|
|
|
sub deparenthesize {
|
|
my ($string) = @_;
|
|
return "" if (!defined($string));
|
|
|
|
while ($string =~ /^\s*\(.*\)\s*$/) {
|
|
$string =~ s@^\s*\(\s*@@;
|
|
$string =~ s@\s*\)\s*$@@;
|
|
}
|
|
|
|
$string =~ s@\s+@ @g;
|
|
|
|
return $string;
|
|
}
|
|
|
|
sub seed_camelcase_file {
|
|
my ($file) = @_;
|
|
|
|
return if (!(-f $file));
|
|
|
|
local $/;
|
|
|
|
open(my $include_file, '<', "$file")
|
|
or warn "$P: Can't read '$file' $!\n";
|
|
my $text = <$include_file>;
|
|
close($include_file);
|
|
|
|
my @lines = split('\n', $text);
|
|
|
|
foreach my $line (@lines) {
|
|
next if ($line !~ /(?:[A-Z][a-z]|[a-z][A-Z])/);
|
|
if ($line =~ /^[ \t]*(?:#[ \t]*define|typedef\s+$Type)\s+(\w*(?:[A-Z][a-z]|[a-z][A-Z])\w*)/) {
|
|
$camelcase{$1} = 1;
|
|
} elsif ($line =~ /^\s*$Declare\s+(\w*(?:[A-Z][a-z]|[a-z][A-Z])\w*)\s*[\(\[,;]/) {
|
|
$camelcase{$1} = 1;
|
|
} elsif ($line =~ /^\s*(?:union|struct|enum)\s+(\w*(?:[A-Z][a-z]|[a-z][A-Z])\w*)\s*[;\{]/) {
|
|
$camelcase{$1} = 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
sub is_maintained_obsolete {
|
|
my ($filename) = @_;
|
|
|
|
return 0 if (!$tree || !(-e "$root/scripts/get_maintainer.pl"));
|
|
|
|
my $status = `perl $root/scripts/get_maintainer.pl --status --nom --nol --nogit --nogit-fallback -f $filename 2>&1`;
|
|
|
|
return $status =~ /obsolete/i;
|
|
}
|
|
|
|
sub is_SPDX_License_valid {
|
|
my ($license) = @_;
|
|
|
|
return 1 if (!$tree || which("python") eq "" || !(-e "$root/scripts/spdxcheck.py") || !(-e "$root/.git"));
|
|
|
|
my $root_path = abs_path($root);
|
|
my $status = `cd "$root_path"; echo "$license" | python scripts/spdxcheck.py -`;
|
|
return 0 if ($status ne "");
|
|
return 1;
|
|
}
|
|
|
|
my $camelcase_seeded = 0;
|
|
sub seed_camelcase_includes {
|
|
return if ($camelcase_seeded);
|
|
|
|
my $files;
|
|
my $camelcase_cache = "";
|
|
my @include_files = ();
|
|
|
|
$camelcase_seeded = 1;
|
|
|
|
if (-e ".git") {
|
|
my $git_last_include_commit = `git log --no-merges --pretty=format:"%h%n" -1 -- include`;
|
|
chomp $git_last_include_commit;
|
|
$camelcase_cache = ".checkpatch-camelcase.git.$git_last_include_commit";
|
|
} else {
|
|
my $last_mod_date = 0;
|
|
$files = `find $root/include -name "*.h"`;
|
|
@include_files = split('\n', $files);
|
|
foreach my $file (@include_files) {
|
|
my $date = POSIX::strftime("%Y%m%d%H%M",
|
|
localtime((stat $file)[9]));
|
|
$last_mod_date = $date if ($last_mod_date < $date);
|
|
}
|
|
$camelcase_cache = ".checkpatch-camelcase.date.$last_mod_date";
|
|
}
|
|
|
|
if ($camelcase_cache ne "" && -f $camelcase_cache) {
|
|
open(my $camelcase_file, '<', "$camelcase_cache")
|
|
or warn "$P: Can't read '$camelcase_cache' $!\n";
|
|
while (<$camelcase_file>) {
|
|
chomp;
|
|
$camelcase{$_} = 1;
|
|
}
|
|
close($camelcase_file);
|
|
|
|
return;
|
|
}
|
|
|
|
if (-e ".git") {
|
|
$files = `git ls-files "include/*.h"`;
|
|
@include_files = split('\n', $files);
|
|
}
|
|
|
|
foreach my $file (@include_files) {
|
|
seed_camelcase_file($file);
|
|
}
|
|
|
|
if ($camelcase_cache ne "") {
|
|
unlink glob ".checkpatch-camelcase.*";
|
|
open(my $camelcase_file, '>', "$camelcase_cache")
|
|
or warn "$P: Can't write '$camelcase_cache' $!\n";
|
|
foreach (sort { lc($a) cmp lc($b) } keys(%camelcase)) {
|
|
print $camelcase_file ("$_\n");
|
|
}
|
|
close($camelcase_file);
|
|
}
|
|
}
|
|
|
|
sub git_commit_info {
|
|
my ($commit, $id, $desc) = @_;
|
|
|
|
return ($id, $desc) if ((which("git") eq "") || !(-e ".git"));
|
|
|
|
my $output = `git log --no-color --format='%H %s' -1 $commit 2>&1`;
|
|
$output =~ s/^\s*//gm;
|
|
my @lines = split("\n", $output);
|
|
|
|
return ($id, $desc) if ($#lines < 0);
|
|
|
|
if ($lines[0] =~ /^error: short SHA1 $commit is ambiguous\./) {
|
|
# Maybe one day convert this block of bash into something that returns
|
|
# all matching commit ids, but it's very slow...
|
|
#
|
|
# echo "checking commits $1..."
|
|
# git rev-list --remotes | grep -i "^$1" |
|
|
# while read line ; do
|
|
# git log --format='%H %s' -1 $line |
|
|
# echo "commit $(cut -c 1-12,41-)"
|
|
# done
|
|
} elsif ($lines[0] =~ /^fatal: ambiguous argument '$commit': unknown revision or path not in the working tree\./) {
|
|
$id = undef;
|
|
} else {
|
|
$id = substr($lines[0], 0, 12);
|
|
$desc = substr($lines[0], 41);
|
|
}
|
|
|
|
return ($id, $desc);
|
|
}
|
|
|
|
$chk_signoff = 0 if ($file);
|
|
|
|
my @rawlines = ();
|
|
my @lines = ();
|
|
my @fixed = ();
|
|
my @fixed_inserted = ();
|
|
my @fixed_deleted = ();
|
|
my $fixlinenr = -1;
|
|
|
|
# If input is git commits, extract all commits from the commit expressions.
|
|
# For example, HEAD-3 means we need check 'HEAD, HEAD~1, HEAD~2'.
|
|
die "$P: No git repository found\n" if ($git && !-e ".git");
|
|
|
|
if ($git) {
|
|
my @commits = ();
|
|
foreach my $commit_expr (@ARGV) {
|
|
my $git_range;
|
|
if ($commit_expr =~ m/^(.*)-(\d+)$/) {
|
|
$git_range = "-$2 $1";
|
|
} elsif ($commit_expr =~ m/\.\./) {
|
|
$git_range = "$commit_expr";
|
|
} else {
|
|
$git_range = "-1 $commit_expr";
|
|
}
|
|
my $lines = `git log --no-color --no-merges --pretty=format:'%H %s' $git_range`;
|
|
foreach my $line (split(/\n/, $lines)) {
|
|
$line =~ /^([0-9a-fA-F]{40,40}) (.*)$/;
|
|
next if (!defined($1) || !defined($2));
|
|
my $sha1 = $1;
|
|
my $subject = $2;
|
|
unshift(@commits, $sha1);
|
|
$git_commits{$sha1} = $subject;
|
|
}
|
|
}
|
|
die "$P: no git commits after extraction!\n" if (@commits == 0);
|
|
@ARGV = @commits;
|
|
}
|
|
|
|
my $vname;
|
|
for my $filename (@ARGV) {
|
|
my $FILE;
|
|
if ($git) {
|
|
open($FILE, '-|', "git format-patch -M --stdout -1 $filename") ||
|
|
die "$P: $filename: git format-patch failed - $!\n";
|
|
} elsif ($file) {
|
|
open($FILE, '-|', "diff -u /dev/null $filename") ||
|
|
die "$P: $filename: diff failed - $!\n";
|
|
} elsif ($filename eq '-') {
|
|
open($FILE, '<&STDIN');
|
|
} else {
|
|
open($FILE, '<', "$filename") ||
|
|
die "$P: $filename: open failed - $!\n";
|
|
}
|
|
if ($filename eq '-') {
|
|
$vname = 'Your patch';
|
|
} elsif ($git) {
|
|
$vname = "Commit " . substr($filename, 0, 12) . ' ("' . $git_commits{$filename} . '")';
|
|
} else {
|
|
$vname = $filename;
|
|
}
|
|
while (<$FILE>) {
|
|
chomp;
|
|
push(@rawlines, $_);
|
|
}
|
|
close($FILE);
|
|
|
|
if ($#ARGV > 0 && $quiet == 0) {
|
|
print '-' x length($vname) . "\n";
|
|
print "$vname\n";
|
|
print '-' x length($vname) . "\n";
|
|
}
|
|
|
|
if (!process($filename)) {
|
|
$exit = 1;
|
|
}
|
|
@rawlines = ();
|
|
@lines = ();
|
|
@fixed = ();
|
|
@fixed_inserted = ();
|
|
@fixed_deleted = ();
|
|
$fixlinenr = -1;
|
|
@modifierListFile = ();
|
|
@typeListFile = ();
|
|
build_types();
|
|
}
|
|
|
|
if (!$quiet) {
|
|
hash_show_words(\%use_type, "Used");
|
|
hash_show_words(\%ignore_type, "Ignored");
|
|
|
|
if (!$perl_version_ok) {
|
|
print << "EOM"
|
|
|
|
NOTE: perl $^V is not modern enough to detect all possible issues.
|
|
An upgrade to at least perl $minimum_perl_version is suggested.
|
|
EOM
|
|
}
|
|
if ($exit) {
|
|
print << "EOM"
|
|
|
|
NOTE: If any of the errors are false positives, please report
|
|
them to the maintainer, see CHECKPATCH in MAINTAINERS.
|
|
EOM
|
|
}
|
|
}
|
|
|
|
exit($exit);
|
|
|
|
sub top_of_kernel_tree {
|
|
my ($root) = @_;
|
|
|
|
my @tree_check = (
|
|
"COPYING", "CREDITS", "Kbuild", "MAINTAINERS", "Makefile",
|
|
"README", "Documentation", "arch", "include", "drivers",
|
|
"fs", "init", "ipc", "kernel", "lib", "scripts",
|
|
);
|
|
|
|
foreach my $check (@tree_check) {
|
|
if (! -e $root . '/' . $check) {
|
|
return 0;
|
|
}
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
sub parse_email {
|
|
my ($formatted_email) = @_;
|
|
|
|
my $name = "";
|
|
my $address = "";
|
|
my $comment = "";
|
|
|
|
if ($formatted_email =~ /^(.*)<(\S+\@\S+)>(.*)$/) {
|
|
$name = $1;
|
|
$address = $2;
|
|
$comment = $3 if defined $3;
|
|
} elsif ($formatted_email =~ /^\s*<(\S+\@\S+)>(.*)$/) {
|
|
$address = $1;
|
|
$comment = $2 if defined $2;
|
|
} elsif ($formatted_email =~ /(\S+\@\S+)(.*)$/) {
|
|
$address = $1;
|
|
$comment = $2 if defined $2;
|
|
$formatted_email =~ s/\Q$address\E.*$//;
|
|
$name = $formatted_email;
|
|
$name = trim($name);
|
|
$name =~ s/^\"|\"$//g;
|
|
# If there's a name left after stripping spaces and
|
|
# leading quotes, and the address doesn't have both
|
|
# leading and trailing angle brackets, the address
|
|
# is invalid. ie:
|
|
# "joe smith joe@smith.com" bad
|
|
# "joe smith <joe@smith.com" bad
|
|
if ($name ne "" && $address !~ /^<[^>]+>$/) {
|
|
$name = "";
|
|
$address = "";
|
|
$comment = "";
|
|
}
|
|
}
|
|
|
|
$name = trim($name);
|
|
$name =~ s/^\"|\"$//g;
|
|
$address = trim($address);
|
|
$address =~ s/^\<|\>$//g;
|
|
|
|
if ($name =~ /[^\w \-]/i) { ##has "must quote" chars
|
|
$name =~ s/(?<!\\)"/\\"/g; ##escape quotes
|
|
$name = "\"$name\"";
|
|
}
|
|
|
|
return ($name, $address, $comment);
|
|
}
|
|
|
|
sub format_email {
|
|
my ($name, $address) = @_;
|
|
|
|
my $formatted_email;
|
|
|
|
$name = trim($name);
|
|
$name =~ s/^\"|\"$//g;
|
|
$address = trim($address);
|
|
|
|
if ($name =~ /[^\w \-]/i) { ##has "must quote" chars
|
|
$name =~ s/(?<!\\)"/\\"/g; ##escape quotes
|
|
$name = "\"$name\"";
|
|
}
|
|
|
|
if ("$name" eq "") {
|
|
$formatted_email = "$address";
|
|
} else {
|
|
$formatted_email = "$name <$address>";
|
|
}
|
|
|
|
return $formatted_email;
|
|
}
|
|
|
|
sub which {
|
|
my ($bin) = @_;
|
|
|
|
foreach my $path (split(/:/, $ENV{PATH})) {
|
|
if (-e "$path/$bin") {
|
|
return "$path/$bin";
|
|
}
|
|
}
|
|
|
|
return "";
|
|
}
|
|
|
|
sub which_conf {
|
|
my ($conf) = @_;
|
|
|
|
foreach my $path (split(/:/, ".:$ENV{HOME}:.scripts")) {
|
|
if (-e "$path/$conf") {
|
|
return "$path/$conf";
|
|
}
|
|
}
|
|
|
|
return "";
|
|
}
|
|
|
|
sub expand_tabs {
|
|
my ($str) = @_;
|
|
|
|
my $res = '';
|
|
my $n = 0;
|
|
for my $c (split(//, $str)) {
|
|
if ($c eq "\t") {
|
|
$res .= ' ';
|
|
$n++;
|
|
for (; ($n % 8) != 0; $n++) {
|
|
$res .= ' ';
|
|
}
|
|
next;
|
|
}
|
|
$res .= $c;
|
|
$n++;
|
|
}
|
|
|
|
return $res;
|
|
}
|
|
sub copy_spacing {
|
|
(my $res = shift) =~ tr/\t/ /c;
|
|
return $res;
|
|
}
|
|
|
|
sub line_stats {
|
|
my ($line) = @_;
|
|
|
|
# Drop the diff line leader and expand tabs
|
|
$line =~ s/^.//;
|
|
$line = expand_tabs($line);
|
|
|
|
# Pick the indent from the front of the line.
|
|
my ($white) = ($line =~ /^(\s*)/);
|
|
|
|
return (length($line), length($white));
|
|
}
|
|
|
|
my $sanitise_quote = '';
|
|
|
|
sub sanitise_line_reset {
|
|
my ($in_comment) = @_;
|
|
|
|
if ($in_comment) {
|
|
$sanitise_quote = '*/';
|
|
} else {
|
|
$sanitise_quote = '';
|
|
}
|
|
}
|
|
sub sanitise_line {
|
|
my ($line) = @_;
|
|
|
|
my $res = '';
|
|
my $l = '';
|
|
|
|
my $qlen = 0;
|
|
my $off = 0;
|
|
my $c;
|
|
|
|
# Always copy over the diff marker.
|
|
$res = substr($line, 0, 1);
|
|
|
|
for ($off = 1; $off < length($line); $off++) {
|
|
$c = substr($line, $off, 1);
|
|
|
|
# Comments we are whacking completely including the begin
|
|
# and end, all to $;.
|
|
if ($sanitise_quote eq '' && substr($line, $off, 2) eq '/*') {
|
|
$sanitise_quote = '*/';
|
|
|
|
substr($res, $off, 2, "$;$;");
|
|
$off++;
|
|
next;
|
|
}
|
|
if ($sanitise_quote eq '*/' && substr($line, $off, 2) eq '*/') {
|
|
$sanitise_quote = '';
|
|
substr($res, $off, 2, "$;$;");
|
|
$off++;
|
|
next;
|
|
}
|
|
if ($sanitise_quote eq '' && substr($line, $off, 2) eq '//') {
|
|
$sanitise_quote = '//';
|
|
|
|
substr($res, $off, 2, $sanitise_quote);
|
|
$off++;
|
|
next;
|
|
}
|
|
|
|
# A \ in a string means ignore the next character.
|
|
if (($sanitise_quote eq "'" || $sanitise_quote eq '"') &&
|
|
$c eq "\\") {
|
|
substr($res, $off, 2, 'XX');
|
|
$off++;
|
|
next;
|
|
}
|
|
# Regular quotes.
|
|
if ($c eq "'" || $c eq '"') {
|
|
if ($sanitise_quote eq '') {
|
|
$sanitise_quote = $c;
|
|
|
|
substr($res, $off, 1, $c);
|
|
next;
|
|
} elsif ($sanitise_quote eq $c) {
|
|
$sanitise_quote = '';
|
|
}
|
|
}
|
|
|
|
#print "c<$c> SQ<$sanitise_quote>\n";
|
|
if ($off != 0 && $sanitise_quote eq '*/' && $c ne "\t") {
|
|
substr($res, $off, 1, $;);
|
|
} elsif ($off != 0 && $sanitise_quote eq '//' && $c ne "\t") {
|
|
substr($res, $off, 1, $;);
|
|
} elsif ($off != 0 && $sanitise_quote && $c ne "\t") {
|
|
substr($res, $off, 1, 'X');
|
|
} else {
|
|
substr($res, $off, 1, $c);
|
|
}
|
|
}
|
|
|
|
if ($sanitise_quote eq '//') {
|
|
$sanitise_quote = '';
|
|
}
|
|
|
|
# The pathname on a #include may be surrounded by '<' and '>'.
|
|
if ($res =~ /^.\s*\#\s*include\s+\<(.*)\>/) {
|
|
my $clean = 'X' x length($1);
|
|
$res =~ s@\<.*\>@<$clean>@;
|
|
|
|
# The whole of a #error is a string.
|
|
} elsif ($res =~ /^.\s*\#\s*(?:error|warning)\s+(.*)\b/) {
|
|
my $clean = 'X' x length($1);
|
|
$res =~ s@(\#\s*(?:error|warning)\s+).*@$1$clean@;
|
|
}
|
|
|
|
if ($allow_c99_comments && $res =~ m@(//.*$)@) {
|
|
my $match = $1;
|
|
$res =~ s/\Q$match\E/"$;" x length($match)/e;
|
|
}
|
|
|
|
return $res;
|
|
}
|
|
|
|
sub get_quoted_string {
|
|
my ($line, $rawline) = @_;
|
|
|
|
return "" if (!defined($line) || !defined($rawline));
|
|
return "" if ($line !~ m/($String)/g);
|
|
return substr($rawline, $-[0], $+[0] - $-[0]);
|
|
}
|
|
|
|
sub ctx_statement_block {
|
|
my ($linenr, $remain, $off) = @_;
|
|
my $line = $linenr - 1;
|
|
my $blk = '';
|
|
my $soff = $off;
|
|
my $coff = $off - 1;
|
|
my $coff_set = 0;
|
|
|
|
my $loff = 0;
|
|
|
|
my $type = '';
|
|
my $level = 0;
|
|
my @stack = ();
|
|
my $p;
|
|
my $c;
|
|
my $len = 0;
|
|
|
|
my $remainder;
|
|
while (1) {
|
|
@stack = (['', 0]) if ($#stack == -1);
|
|
|
|
#warn "CSB: blk<$blk> remain<$remain>\n";
|
|
# If we are about to drop off the end, pull in more
|
|
# context.
|
|
if ($off >= $len) {
|
|
for (; $remain > 0; $line++) {
|
|
last if (!defined $lines[$line]);
|
|
next if ($lines[$line] =~ /^-/);
|
|
$remain--;
|
|
$loff = $len;
|
|
$blk .= $lines[$line] . "\n";
|
|
$len = length($blk);
|
|
$line++;
|
|
last;
|
|
}
|
|
# Bail if there is no further context.
|
|
#warn "CSB: blk<$blk> off<$off> len<$len>\n";
|
|
if ($off >= $len) {
|
|
last;
|
|
}
|
|
if ($level == 0 && substr($blk, $off) =~ /^.\s*#\s*define/) {
|
|
$level++;
|
|
$type = '#';
|
|
}
|
|
}
|
|
$p = $c;
|
|
$c = substr($blk, $off, 1);
|
|
$remainder = substr($blk, $off);
|
|
|
|
#warn "CSB: c<$c> type<$type> level<$level> remainder<$remainder> coff_set<$coff_set>\n";
|
|
|
|
# Handle nested #if/#else.
|
|
if ($remainder =~ /^#\s*(?:ifndef|ifdef|if)\s/) {
|
|
push(@stack, [ $type, $level ]);
|
|
} elsif ($remainder =~ /^#\s*(?:else|elif)\b/) {
|
|
($type, $level) = @{$stack[$#stack - 1]};
|
|
} elsif ($remainder =~ /^#\s*endif\b/) {
|
|
($type, $level) = @{pop(@stack)};
|
|
}
|
|
|
|
# Statement ends at the ';' or a close '}' at the
|
|
# outermost level.
|
|
if ($level == 0 && $c eq ';') {
|
|
last;
|
|
}
|
|
|
|
# An else is really a conditional as long as its not else if
|
|
if ($level == 0 && $coff_set == 0 &&
|
|
(!defined($p) || $p =~ /(?:\s|\}|\+)/) &&
|
|
$remainder =~ /^(else)(?:\s|{)/ &&
|
|
$remainder !~ /^else\s+if\b/) {
|
|
$coff = $off + length($1) - 1;
|
|
$coff_set = 1;
|
|
#warn "CSB: mark coff<$coff> soff<$soff> 1<$1>\n";
|
|
#warn "[" . substr($blk, $soff, $coff - $soff + 1) . "]\n";
|
|
}
|
|
|
|
if (($type eq '' || $type eq '(') && $c eq '(') {
|
|
$level++;
|
|
$type = '(';
|
|
}
|
|
if ($type eq '(' && $c eq ')') {
|
|
$level--;
|
|
$type = ($level != 0)? '(' : '';
|
|
|
|
if ($level == 0 && $coff < $soff) {
|
|
$coff = $off;
|
|
$coff_set = 1;
|
|
#warn "CSB: mark coff<$coff>\n";
|
|
}
|
|
}
|
|
if (($type eq '' || $type eq '{') && $c eq '{') {
|
|
$level++;
|
|
$type = '{';
|
|
}
|
|
if ($type eq '{' && $c eq '}') {
|
|
$level--;
|
|
$type = ($level != 0)? '{' : '';
|
|
|
|
if ($level == 0) {
|
|
if (substr($blk, $off + 1, 1) eq ';') {
|
|
$off++;
|
|
}
|
|
last;
|
|
}
|
|
}
|
|
# Preprocessor commands end at the newline unless escaped.
|
|
if ($type eq '#' && $c eq "\n" && $p ne "\\") {
|
|
$level--;
|
|
$type = '';
|
|
$off++;
|
|
last;
|
|
}
|
|
$off++;
|
|
}
|
|
# We are truly at the end, so shuffle to the next line.
|
|
if ($off == $len) {
|
|
$loff = $len + 1;
|
|
$line++;
|
|
$remain--;
|
|
}
|
|
|
|
my $statement = substr($blk, $soff, $off - $soff + 1);
|
|
my $condition = substr($blk, $soff, $coff - $soff + 1);
|
|
|
|
#warn "STATEMENT<$statement>\n";
|
|
#warn "CONDITION<$condition>\n";
|
|
|
|
#print "coff<$coff> soff<$off> loff<$loff>\n";
|
|
|
|
return ($statement, $condition,
|
|
$line, $remain + 1, $off - $loff + 1, $level);
|
|
}
|
|
|
|
sub statement_lines {
|
|
my ($stmt) = @_;
|
|
|
|
# Strip the diff line prefixes and rip blank lines at start and end.
|
|
$stmt =~ s/(^|\n)./$1/g;
|
|
$stmt =~ s/^\s*//;
|
|
$stmt =~ s/\s*$//;
|
|
|
|
my @stmt_lines = ($stmt =~ /\n/g);
|
|
|
|
return $#stmt_lines + 2;
|
|
}
|
|
|
|
sub statement_rawlines {
|
|
my ($stmt) = @_;
|
|
|
|
my @stmt_lines = ($stmt =~ /\n/g);
|
|
|
|
return $#stmt_lines + 2;
|
|
}
|
|
|
|
sub statement_block_size {
|
|
my ($stmt) = @_;
|
|
|
|
$stmt =~ s/(^|\n)./$1/g;
|
|
$stmt =~ s/^\s*{//;
|
|
$stmt =~ s/}\s*$//;
|
|
$stmt =~ s/^\s*//;
|
|
$stmt =~ s/\s*$//;
|
|
|
|
my @stmt_lines = ($stmt =~ /\n/g);
|
|
my @stmt_statements = ($stmt =~ /;/g);
|
|
|
|
my $stmt_lines = $#stmt_lines + 2;
|
|
my $stmt_statements = $#stmt_statements + 1;
|
|
|
|
if ($stmt_lines > $stmt_statements) {
|
|
return $stmt_lines;
|
|
} else {
|
|
return $stmt_statements;
|
|
}
|
|
}
|
|
|
|
sub ctx_statement_full {
|
|
my ($linenr, $remain, $off) = @_;
|
|
my ($statement, $condition, $level);
|
|
|
|
my (@chunks);
|
|
|
|
# Grab the first conditional/block pair.
|
|
($statement, $condition, $linenr, $remain, $off, $level) =
|
|
ctx_statement_block($linenr, $remain, $off);
|
|
#print "F: c<$condition> s<$statement> remain<$remain>\n";
|
|
push(@chunks, [ $condition, $statement ]);
|
|
if (!($remain > 0 && $condition =~ /^\s*(?:\n[+-])?\s*(?:if|else|do)\b/s)) {
|
|
return ($level, $linenr, @chunks);
|
|
}
|
|
|
|
# Pull in the following conditional/block pairs and see if they
|
|
# could continue the statement.
|
|
for (;;) {
|
|
($statement, $condition, $linenr, $remain, $off, $level) =
|
|
ctx_statement_block($linenr, $remain, $off);
|
|
#print "C: c<$condition> s<$statement> remain<$remain>\n";
|
|
last if (!($remain > 0 && $condition =~ /^(?:\s*\n[+-])*\s*(?:else|do)\b/s));
|
|
#print "C: push\n";
|
|
push(@chunks, [ $condition, $statement ]);
|
|
}
|
|
|
|
return ($level, $linenr, @chunks);
|
|
}
|
|
|
|
sub ctx_block_get {
|
|
my ($linenr, $remain, $outer, $open, $close, $off) = @_;
|
|
my $line;
|
|
my $start = $linenr - 1;
|
|
my $blk = '';
|
|
my @o;
|
|
my @c;
|
|
my @res = ();
|
|
|
|
my $level = 0;
|
|
my @stack = ($level);
|
|
for ($line = $start; $remain > 0; $line++) {
|
|
next if ($rawlines[$line] =~ /^-/);
|
|
$remain--;
|
|
|
|
$blk .= $rawlines[$line];
|
|
|
|
# Handle nested #if/#else.
|
|
if ($lines[$line] =~ /^.\s*#\s*(?:ifndef|ifdef|if)\s/) {
|
|
push(@stack, $level);
|
|
} elsif ($lines[$line] =~ /^.\s*#\s*(?:else|elif)\b/) {
|
|
$level = $stack[$#stack - 1];
|
|
} elsif ($lines[$line] =~ /^.\s*#\s*endif\b/) {
|
|
$level = pop(@stack);
|
|
}
|
|
|
|
foreach my $c (split(//, $lines[$line])) {
|
|
##print "C<$c>L<$level><$open$close>O<$off>\n";
|
|
if ($off > 0) {
|
|
$off--;
|
|
next;
|
|
}
|
|
|
|
if ($c eq $close && $level > 0) {
|
|
$level--;
|
|
last if ($level == 0);
|
|
} elsif ($c eq $open) {
|
|
$level++;
|
|
}
|
|
}
|
|
|
|
if (!$outer || $level <= 1) {
|
|
push(@res, $rawlines[$line]);
|
|
}
|
|
|
|
last if ($level == 0);
|
|
}
|
|
|
|
return ($level, @res);
|
|
}
|
|
sub ctx_block_outer {
|
|
my ($linenr, $remain) = @_;
|
|
|
|
my ($level, @r) = ctx_block_get($linenr, $remain, 1, '{', '}', 0);
|
|
return @r;
|
|
}
|
|
sub ctx_block {
|
|
my ($linenr, $remain) = @_;
|
|
|
|
my ($level, @r) = ctx_block_get($linenr, $remain, 0, '{', '}', 0);
|
|
return @r;
|
|
}
|
|
sub ctx_statement {
|
|
my ($linenr, $remain, $off) = @_;
|
|
|
|
my ($level, @r) = ctx_block_get($linenr, $remain, 0, '(', ')', $off);
|
|
return @r;
|
|
}
|
|
sub ctx_block_level {
|
|
my ($linenr, $remain) = @_;
|
|
|
|
return ctx_block_get($linenr, $remain, 0, '{', '}', 0);
|
|
}
|
|
sub ctx_statement_level {
|
|
my ($linenr, $remain, $off) = @_;
|
|
|
|
return ctx_block_get($linenr, $remain, 0, '(', ')', $off);
|
|
}
|
|
|
|
sub ctx_locate_comment {
|
|
my ($first_line, $end_line) = @_;
|
|
|
|
# Catch a comment on the end of the line itself.
|
|
my ($current_comment) = ($rawlines[$end_line - 1] =~ m@.*(/\*.*\*/)\s*(?:\\\s*)?$@);
|
|
return $current_comment if (defined $current_comment);
|
|
|
|
# Look through the context and try and figure out if there is a
|
|
# comment.
|
|
my $in_comment = 0;
|
|
$current_comment = '';
|
|
for (my $linenr = $first_line; $linenr < $end_line; $linenr++) {
|
|
my $line = $rawlines[$linenr - 1];
|
|
#warn " $line\n";
|
|
if ($linenr == $first_line and $line =~ m@^.\s*\*@) {
|
|
$in_comment = 1;
|
|
}
|
|
if ($line =~ m@/\*@) {
|
|
$in_comment = 1;
|
|
}
|
|
if (!$in_comment && $current_comment ne '') {
|
|
$current_comment = '';
|
|
}
|
|
$current_comment .= $line . "\n" if ($in_comment);
|
|
if ($line =~ m@\*/@) {
|
|
$in_comment = 0;
|
|
}
|
|
}
|
|
|
|
chomp($current_comment);
|
|
return($current_comment);
|
|
}
|
|
sub ctx_has_comment {
|
|
my ($first_line, $end_line) = @_;
|
|
my $cmt = ctx_locate_comment($first_line, $end_line);
|
|
|
|
##print "LINE: $rawlines[$end_line - 1 ]\n";
|
|
##print "CMMT: $cmt\n";
|
|
|
|
return ($cmt ne '');
|
|
}
|
|
|
|
sub raw_line {
|
|
my ($linenr, $cnt) = @_;
|
|
|
|
my $offset = $linenr - 1;
|
|
$cnt++;
|
|
|
|
my $line;
|
|
while ($cnt) {
|
|
$line = $rawlines[$offset++];
|
|
next if (defined($line) && $line =~ /^-/);
|
|
$cnt--;
|
|
}
|
|
|
|
return $line;
|
|
}
|
|
|
|
sub get_stat_real {
|
|
my ($linenr, $lc) = @_;
|
|
|
|
my $stat_real = raw_line($linenr, 0);
|
|
for (my $count = $linenr + 1; $count <= $lc; $count++) {
|
|
$stat_real = $stat_real . "\n" . raw_line($count, 0);
|
|
}
|
|
|
|
return $stat_real;
|
|
}
|
|
|
|
sub get_stat_here {
|
|
my ($linenr, $cnt, $here) = @_;
|
|
|
|
my $herectx = $here . "\n";
|
|
for (my $n = 0; $n < $cnt; $n++) {
|
|
$herectx .= raw_line($linenr, $n) . "\n";
|
|
}
|
|
|
|
return $herectx;
|
|
}
|
|
|
|
sub cat_vet {
|
|
my ($vet) = @_;
|
|
my ($res, $coded);
|
|
|
|
$res = '';
|
|
while ($vet =~ /([^[:cntrl:]]*)([[:cntrl:]]|$)/g) {
|
|
$res .= $1;
|
|
if ($2 ne '') {
|
|
$coded = sprintf("^%c", unpack('C', $2) + 64);
|
|
$res .= $coded;
|
|
}
|
|
}
|
|
$res =~ s/$/\$/;
|
|
|
|
return $res;
|
|
}
|
|
|
|
my $av_preprocessor = 0;
|
|
my $av_pending;
|
|
my @av_paren_type;
|
|
my $av_pend_colon;
|
|
|
|
sub annotate_reset {
|
|
$av_preprocessor = 0;
|
|
$av_pending = '_';
|
|
@av_paren_type = ('E');
|
|
$av_pend_colon = 'O';
|
|
}
|
|
|
|
sub annotate_values {
|
|
my ($stream, $type) = @_;
|
|
|
|
my $res;
|
|
my $var = '_' x length($stream);
|
|
my $cur = $stream;
|
|
|
|
print "$stream\n" if ($dbg_values > 1);
|
|
|
|
while (length($cur)) {
|
|
@av_paren_type = ('E') if ($#av_paren_type < 0);
|
|
print " <" . join('', @av_paren_type) .
|
|
"> <$type> <$av_pending>" if ($dbg_values > 1);
|
|
if ($cur =~ /^(\s+)/o) {
|
|
print "WS($1)\n" if ($dbg_values > 1);
|
|
if ($1 =~ /\n/ && $av_preprocessor) {
|
|
$type = pop(@av_paren_type);
|
|
$av_preprocessor = 0;
|
|
}
|
|
|
|
} elsif ($cur =~ /^(\(\s*$Type\s*)\)/ && $av_pending eq '_') {
|
|
print "CAST($1)\n" if ($dbg_values > 1);
|
|
push(@av_paren_type, $type);
|
|
$type = 'c';
|
|
|
|
} elsif ($cur =~ /^($Type)\s*(?:$Ident|,|\)|\(|\s*$)/) {
|
|
print "DECLARE($1)\n" if ($dbg_values > 1);
|
|
$type = 'T';
|
|
|
|
} elsif ($cur =~ /^($Modifier)\s*/) {
|
|
print "MODIFIER($1)\n" if ($dbg_values > 1);
|
|
$type = 'T';
|
|
|
|
} elsif ($cur =~ /^(\#\s*define\s*$Ident)(\(?)/o) {
|
|
print "DEFINE($1,$2)\n" if ($dbg_values > 1);
|
|
$av_preprocessor = 1;
|
|
push(@av_paren_type, $type);
|
|
if ($2 ne '') {
|
|
$av_pending = 'N';
|
|
}
|
|
$type = 'E';
|
|
|
|
} elsif ($cur =~ /^(\#\s*(?:undef\s*$Ident|include\b))/o) {
|
|
print "UNDEF($1)\n" if ($dbg_values > 1);
|
|
$av_preprocessor = 1;
|
|
push(@av_paren_type, $type);
|
|
|
|
} elsif ($cur =~ /^(\#\s*(?:ifdef|ifndef|if))/o) {
|
|
print "PRE_START($1)\n" if ($dbg_values > 1);
|
|
$av_preprocessor = 1;
|
|
|
|
push(@av_paren_type, $type);
|
|
push(@av_paren_type, $type);
|
|
$type = 'E';
|
|
|
|
} elsif ($cur =~ /^(\#\s*(?:else|elif))/o) {
|
|
print "PRE_RESTART($1)\n" if ($dbg_values > 1);
|
|
$av_preprocessor = 1;
|
|
|
|
push(@av_paren_type, $av_paren_type[$#av_paren_type]);
|
|
|
|
$type = 'E';
|
|
|
|
} elsif ($cur =~ /^(\#\s*(?:endif))/o) {
|
|
print "PRE_END($1)\n" if ($dbg_values > 1);
|
|
|
|
$av_preprocessor = 1;
|
|
|
|
# Assume all arms of the conditional end as this
|
|
# one does, and continue as if the #endif was not here.
|
|
pop(@av_paren_type);
|
|
push(@av_paren_type, $type);
|
|
$type = 'E';
|
|
|
|
} elsif ($cur =~ /^(\\\n)/o) {
|
|
print "PRECONT($1)\n" if ($dbg_values > 1);
|
|
|
|
} elsif ($cur =~ /^(__attribute__)\s*\(?/o) {
|
|
print "ATTR($1)\n" if ($dbg_values > 1);
|
|
$av_pending = $type;
|
|
$type = 'N';
|
|
|
|
} elsif ($cur =~ /^(sizeof)\s*(\()?/o) {
|
|
print "SIZEOF($1)\n" if ($dbg_values > 1);
|
|
if (defined $2) {
|
|
$av_pending = 'V';
|
|
}
|
|
$type = 'N';
|
|
|
|
} elsif ($cur =~ /^(if|while|for)\b/o) {
|
|
print "COND($1)\n" if ($dbg_values > 1);
|
|
$av_pending = 'E';
|
|
$type = 'N';
|
|
|
|
} elsif ($cur =~/^(case)/o) {
|
|
print "CASE($1)\n" if ($dbg_values > 1);
|
|
$av_pend_colon = 'C';
|
|
$type = 'N';
|
|
|
|
} elsif ($cur =~/^(return|else|goto|typeof|__typeof__)\b/o) {
|
|
print "KEYWORD($1)\n" if ($dbg_values > 1);
|
|
$type = 'N';
|
|
|
|
} elsif ($cur =~ /^(\()/o) {
|
|
print "PAREN('$1')\n" if ($dbg_values > 1);
|
|
push(@av_paren_type, $av_pending);
|
|
$av_pending = '_';
|
|
$type = 'N';
|
|
|
|
} elsif ($cur =~ /^(\))/o) {
|
|
my $new_type = pop(@av_paren_type);
|
|
if ($new_type ne '_') {
|
|
$type = $new_type;
|
|
print "PAREN('$1') -> $type\n"
|
|
if ($dbg_values > 1);
|
|
} else {
|
|
print "PAREN('$1')\n" if ($dbg_values > 1);
|
|
}
|
|
|
|
} elsif ($cur =~ /^($Ident)\s*\(/o) {
|
|
print "FUNC($1)\n" if ($dbg_values > 1);
|
|
$type = 'V';
|
|
$av_pending = 'V';
|
|
|
|
} elsif ($cur =~ /^($Ident\s*):(?:\s*\d+\s*(,|=|;))?/) {
|
|
if (defined $2 && $type eq 'C' || $type eq 'T') {
|
|
$av_pend_colon = 'B';
|
|
} elsif ($type eq 'E') {
|
|
$av_pend_colon = 'L';
|
|
}
|
|
print "IDENT_COLON($1,$type>$av_pend_colon)\n" if ($dbg_values > 1);
|
|
$type = 'V';
|
|
|
|
} elsif ($cur =~ /^($Ident|$Constant)/o) {
|
|
print "IDENT($1)\n" if ($dbg_values > 1);
|
|
$type = 'V';
|
|
|
|
} elsif ($cur =~ /^($Assignment)/o) {
|
|
print "ASSIGN($1)\n" if ($dbg_values > 1);
|
|
$type = 'N';
|
|
|
|
} elsif ($cur =~/^(;|{|})/) {
|
|
print "END($1)\n" if ($dbg_values > 1);
|
|
$type = 'E';
|
|
$av_pend_colon = 'O';
|
|
|
|
} elsif ($cur =~/^(,)/) {
|
|
print "COMMA($1)\n" if ($dbg_values > 1);
|
|
$type = 'C';
|
|
|
|
} elsif ($cur =~ /^(\?)/o) {
|
|
print "QUESTION($1)\n" if ($dbg_values > 1);
|
|
$type = 'N';
|
|
|
|
} elsif ($cur =~ /^(:)/o) {
|
|
print "COLON($1,$av_pend_colon)\n" if ($dbg_values > 1);
|
|
|
|
substr($var, length($res), 1, $av_pend_colon);
|
|
if ($av_pend_colon eq 'C' || $av_pend_colon eq 'L') {
|
|
$type = 'E';
|
|
} else {
|
|
$type = 'N';
|
|
}
|
|
$av_pend_colon = 'O';
|
|
|
|
} elsif ($cur =~ /^(\[)/o) {
|
|
print "CLOSE($1)\n" if ($dbg_values > 1);
|
|
$type = 'N';
|
|
|
|
} elsif ($cur =~ /^(-(?![->])|\+(?!\+)|\*|\&\&|\&)/o) {
|
|
my $variant;
|
|
|
|
print "OPV($1)\n" if ($dbg_values > 1);
|
|
if ($type eq 'V') {
|
|
$variant = 'B';
|
|
} else {
|
|
$variant = 'U';
|
|
}
|
|
|
|
substr($var, length($res), 1, $variant);
|
|
$type = 'N';
|
|
|
|
} elsif ($cur =~ /^($Operators)/o) {
|
|
print "OP($1)\n" if ($dbg_values > 1);
|
|
if ($1 ne '++' && $1 ne '--') {
|
|
$type = 'N';
|
|
}
|
|
|
|
} elsif ($cur =~ /(^.)/o) {
|
|
print "C($1)\n" if ($dbg_values > 1);
|
|
}
|
|
if (defined $1) {
|
|
$cur = substr($cur, length($1));
|
|
$res .= $type x length($1);
|
|
}
|
|
}
|
|
|
|
return ($res, $var);
|
|
}
|
|
|
|
sub possible {
|
|
my ($possible, $line) = @_;
|
|
my $notPermitted = qr{(?:
|
|
^(?:
|
|
$Modifier|
|
|
$Storage|
|
|
$Type|
|
|
DEFINE_\S+
|
|
)$|
|
|
^(?:
|
|
goto|
|
|
return|
|
|
case|
|
|
else|
|
|
asm|__asm__|
|
|
do|
|
|
\#|
|
|
\#\#|
|
|
)(?:\s|$)|
|
|
^(?:typedef|struct|enum)\b
|
|
)}x;
|
|
warn "CHECK<$possible> ($line)\n" if ($dbg_possible > 2);
|
|
if ($possible !~ $notPermitted) {
|
|
# Check for modifiers.
|
|
$possible =~ s/\s*$Storage\s*//g;
|
|
$possible =~ s/\s*$Sparse\s*//g;
|
|
if ($possible =~ /^\s*$/) {
|
|
|
|
} elsif ($possible =~ /\s/) {
|
|
$possible =~ s/\s*$Type\s*//g;
|
|
for my $modifier (split(' ', $possible)) {
|
|
if ($modifier !~ $notPermitted) {
|
|
warn "MODIFIER: $modifier ($possible) ($line)\n" if ($dbg_possible);
|
|
push(@modifierListFile, $modifier);
|
|
}
|
|
}
|
|
|
|
} else {
|
|
warn "POSSIBLE: $possible ($line)\n" if ($dbg_possible);
|
|
push(@typeListFile, $possible);
|
|
}
|
|
build_types();
|
|
} else {
|
|
warn "NOTPOSS: $possible ($line)\n" if ($dbg_possible > 1);
|
|
}
|
|
}
|
|
|
|
my $prefix = '';
|
|
|
|
sub show_type {
|
|
my ($type) = @_;
|
|
|
|
$type =~ tr/[a-z]/[A-Z]/;
|
|
|
|
return defined $use_type{$type} if (scalar keys %use_type > 0);
|
|
|
|
return !defined $ignore_type{$type};
|
|
}
|
|
|
|
sub report {
|
|
my ($level, $type, $msg) = @_;
|
|
|
|
if (!show_type($type) ||
|
|
(defined $tst_only && $msg !~ /\Q$tst_only\E/)) {
|
|
return 0;
|
|
}
|
|
my $output = '';
|
|
if ($color) {
|
|
if ($level eq 'ERROR') {
|
|
$output .= RED;
|
|
} elsif ($level eq 'WARNING') {
|
|
$output .= YELLOW;
|
|
} else {
|
|
$output .= GREEN;
|
|
}
|
|
}
|
|
$output .= $prefix . $level . ':';
|
|
if ($show_types) {
|
|
$output .= BLUE if ($color);
|
|
$output .= "$type:";
|
|
}
|
|
$output .= RESET if ($color);
|
|
$output .= ' ' . $msg . "\n";
|
|
|
|
if ($showfile) {
|
|
my @lines = split("\n", $output, -1);
|
|
splice(@lines, 1, 1);
|
|
$output = join("\n", @lines);
|
|
}
|
|
$output = (split('\n', $output))[0] . "\n" if ($terse);
|
|
|
|
push(our @report, $output);
|
|
|
|
return 1;
|
|
}
|
|
|
|
sub report_dump {
|
|
our @report;
|
|
}
|
|
|
|
sub fixup_current_range {
|
|
my ($lineRef, $offset, $length) = @_;
|
|
|
|
if ($$lineRef =~ /^\@\@ -\d+,\d+ \+(\d+),(\d+) \@\@/) {
|
|
my $o = $1;
|
|
my $l = $2;
|
|
my $no = $o + $offset;
|
|
my $nl = $l + $length;
|
|
$$lineRef =~ s/\+$o,$l \@\@/\+$no,$nl \@\@/;
|
|
}
|
|
}
|
|
|
|
sub fix_inserted_deleted_lines {
|
|
my ($linesRef, $insertedRef, $deletedRef) = @_;
|
|
|
|
my $range_last_linenr = 0;
|
|
my $delta_offset = 0;
|
|
|
|
my $old_linenr = 0;
|
|
my $new_linenr = 0;
|
|
|
|
my $next_insert = 0;
|
|
my $next_delete = 0;
|
|
|
|
my @lines = ();
|
|
|
|
my $inserted = @{$insertedRef}[$next_insert++];
|
|
my $deleted = @{$deletedRef}[$next_delete++];
|
|
|
|
foreach my $old_line (@{$linesRef}) {
|
|
my $save_line = 1;
|
|
my $line = $old_line; #don't modify the array
|
|
if ($line =~ /^(?:\+\+\+|\-\-\-)\s+\S+/) { #new filename
|
|
$delta_offset = 0;
|
|
} elsif ($line =~ /^\@\@ -\d+,\d+ \+\d+,\d+ \@\@/) { #new hunk
|
|
$range_last_linenr = $new_linenr;
|
|
fixup_current_range(\$line, $delta_offset, 0);
|
|
}
|
|
|
|
while (defined($deleted) && ${$deleted}{'LINENR'} == $old_linenr) {
|
|
$deleted = @{$deletedRef}[$next_delete++];
|
|
$save_line = 0;
|
|
fixup_current_range(\$lines[$range_last_linenr], $delta_offset--, -1);
|
|
}
|
|
|
|
while (defined($inserted) && ${$inserted}{'LINENR'} == $old_linenr) {
|
|
push(@lines, ${$inserted}{'LINE'});
|
|
$inserted = @{$insertedRef}[$next_insert++];
|
|
$new_linenr++;
|
|
fixup_current_range(\$lines[$range_last_linenr], $delta_offset++, 1);
|
|
}
|
|
|
|
if ($save_line) {
|
|
push(@lines, $line);
|
|
$new_linenr++;
|
|
}
|
|
|
|
$old_linenr++;
|
|
}
|
|
|
|
return @lines;
|
|
}
|
|
|
|
sub fix_insert_line {
|
|
my ($linenr, $line) = @_;
|
|
|
|
my $inserted = {
|
|
LINENR => $linenr,
|
|
LINE => $line,
|
|
};
|
|
push(@fixed_inserted, $inserted);
|
|
}
|
|
|
|
sub fix_delete_line {
|
|
my ($linenr, $line) = @_;
|
|
|
|
my $deleted = {
|
|
LINENR => $linenr,
|
|
LINE => $line,
|
|
};
|
|
|
|
push(@fixed_deleted, $deleted);
|
|
}
|
|
|
|
sub ERROR {
|
|
my ($type, $msg) = @_;
|
|
|
|
if (report("ERROR", $type, $msg)) {
|
|
our $clean = 0;
|
|
our $cnt_error++;
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
sub WARN {
|
|
my ($type, $msg) = @_;
|
|
|
|
if (report("WARNING", $type, $msg)) {
|
|
our $clean = 0;
|
|
our $cnt_warn++;
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
sub CHK {
|
|
my ($type, $msg) = @_;
|
|
|
|
if ($check && report("CHECK", $type, $msg)) {
|
|
our $clean = 0;
|
|
our $cnt_chk++;
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
sub check_absolute_file {
|
|
my ($absolute, $herecurr) = @_;
|
|
my $file = $absolute;
|
|
|
|
##print "absolute<$absolute>\n";
|
|
|
|
# See if any suffix of this path is a path within the tree.
|
|
while ($file =~ s@^[^/]*/@@) {
|
|
if (-f "$root/$file") {
|
|
##print "file<$file>\n";
|
|
last;
|
|
}
|
|
}
|
|
if (! -f _) {
|
|
return 0;
|
|
}
|
|
|
|
# It is, so see if the prefix is acceptable.
|
|
my $prefix = $absolute;
|
|
substr($prefix, -length($file)) = '';
|
|
|
|
##print "prefix<$prefix>\n";
|
|
if ($prefix ne ".../") {
|
|
WARN("USE_RELATIVE_PATH",
|
|
"use relative pathname instead of absolute in changelog text\n" . $herecurr);
|
|
}
|
|
}
|
|
|
|
sub trim {
|
|
my ($string) = @_;
|
|
|
|
$string =~ s/^\s+|\s+$//g;
|
|
|
|
return $string;
|
|
}
|
|
|
|
sub ltrim {
|
|
my ($string) = @_;
|
|
|
|
$string =~ s/^\s+//;
|
|
|
|
return $string;
|
|
}
|
|
|
|
sub rtrim {
|
|
my ($string) = @_;
|
|
|
|
$string =~ s/\s+$//;
|
|
|
|
return $string;
|
|
}
|
|
|
|
sub string_find_replace {
|
|
my ($string, $find, $replace) = @_;
|
|
|
|
$string =~ s/$find/$replace/g;
|
|
|
|
return $string;
|
|
}
|
|
|
|
sub tabify {
|
|
my ($leading) = @_;
|
|
|
|
my $source_indent = 8;
|
|
my $max_spaces_before_tab = $source_indent - 1;
|
|
my $spaces_to_tab = " " x $source_indent;
|
|
|
|
#convert leading spaces to tabs
|
|
1 while $leading =~ s@^([\t]*)$spaces_to_tab@$1\t@g;
|
|
#Remove spaces before a tab
|
|
1 while $leading =~ s@^([\t]*)( {1,$max_spaces_before_tab})\t@$1\t@g;
|
|
|
|
return "$leading";
|
|
}
|
|
|
|
sub cleanup_continuation_headers {
|
|
# Collapse any header-continuation lines into a single line so they
|
|
# can be parsed meaningfully, as the parser only has one line
|
|
# of context to work with.
|
|
my $again;
|
|
do {
|
|
$again = 0;
|
|
foreach my $n (0 .. scalar(@rawlines) - 2) {
|
|
if ($rawlines[$n]=~/^\s*$/) {
|
|
# A blank line means there's no more chance
|
|
# of finding headers. Shortcut to done.
|
|
return;
|
|
}
|
|
if ($rawlines[$n]=~/^[\x21-\x39\x3b-\x7e]+:/ &&
|
|
$rawlines[$n+1]=~/^\s+/) {
|
|
# Continuation header. Collapse it.
|
|
my $line = splice @rawlines, $n+1, 1;
|
|
$line=~s/^\s+/ /;
|
|
$rawlines[$n] .= $line;
|
|
# We've 'destabilized' the list, so restart.
|
|
$again = 1;
|
|
last;
|
|
}
|
|
}
|
|
} while ($again);
|
|
}
|
|
|
|
sub pos_last_openparen {
|
|
my ($line) = @_;
|
|
|
|
my $pos = 0;
|
|
|
|
my $opens = $line =~ tr/\(/\(/;
|
|
my $closes = $line =~ tr/\)/\)/;
|
|
|
|
my $last_openparen = 0;
|
|
|
|
if (($opens == 0) || ($closes >= $opens)) {
|
|
return -1;
|
|
}
|
|
|
|
my $len = length($line);
|
|
|
|
for ($pos = 0; $pos < $len; $pos++) {
|
|
my $string = substr($line, $pos);
|
|
if ($string =~ /^($FuncArg|$balanced_parens)/) {
|
|
$pos += length($1) - 1;
|
|
} elsif (substr($line, $pos, 1) eq '(') {
|
|
$last_openparen = $pos;
|
|
} elsif (index($string, '(') == -1) {
|
|
last;
|
|
}
|
|
}
|
|
|
|
return length(expand_tabs(substr($line, 0, $last_openparen))) + 1;
|
|
}
|
|
|
|
sub process {
|
|
my $filename = shift;
|
|
|
|
my $linenr=0;
|
|
my $prevline="";
|
|
my $prevrawline="";
|
|
my $stashline="";
|
|
my $stashrawline="";
|
|
my $subjectline="";
|
|
my $sublinenr="";
|
|
|
|
my $length;
|
|
my $indent;
|
|
my $previndent=0;
|
|
my $stashindent=0;
|
|
|
|
our $clean = 1;
|
|
my $signoff = 0;
|
|
my $author = '';
|
|
my $authorsignoff = 0;
|
|
my $is_patch = 0;
|
|
my $is_binding_patch = -1;
|
|
my $in_header_lines = $file ? 0 : 1;
|
|
my $in_commit_log = 0; #Scanning lines before patch
|
|
my $has_commit_log = 0; #Encountered lines before patch
|
|
my $commit_log_lines = 0; #Number of commit log lines
|
|
my $commit_log_possible_stack_dump = 0;
|
|
my $commit_log_long_line = 0;
|
|
my $commit_log_has_diff = 0;
|
|
my $reported_maintainer_file = 0;
|
|
my $non_utf8_charset = 0;
|
|
|
|
my $last_blank_line = 0;
|
|
my $last_coalesced_string_linenr = -1;
|
|
|
|
our @report = ();
|
|
our $cnt_lines = 0;
|
|
our $cnt_error = 0;
|
|
our $cnt_warn = 0;
|
|
our $cnt_chk = 0;
|
|
|
|
# Trace the real file/line as we go.
|
|
my $realfile = '';
|
|
my $realline = 0;
|
|
my $realcnt = 0;
|
|
my $here = '';
|
|
my $context_function; #undef'd unless there's a known function
|
|
my $in_comment = 0;
|
|
my $comment_edge = 0;
|
|
my $first_line = 0;
|
|
my $p1_prefix = '';
|
|
|
|
my $prev_values = 'E';
|
|
|
|
# suppression flags
|
|
my %suppress_ifbraces;
|
|
my %suppress_whiletrailers;
|
|
my %suppress_export;
|
|
my $suppress_statement = 0;
|
|
|
|
my %signatures = ();
|
|
|
|
# Pre-scan the patch sanitizing the lines.
|
|
# Pre-scan the patch looking for any __setup documentation.
|
|
#
|
|
my @setup_docs = ();
|
|
my $setup_docs = 0;
|
|
|
|
my $camelcase_file_seeded = 0;
|
|
my $shorttext = BEFORE_SHORTTEXT;
|
|
my $shorttext_exspc = 0;
|
|
my $commit_text_present = 0;
|
|
|
|
my $checklicenseline = 1;
|
|
|
|
sanitise_line_reset();
|
|
cleanup_continuation_headers();
|
|
my $line;
|
|
|
|
foreach my $rawline (@rawlines) {
|
|
$linenr++;
|
|
$line = $rawline;
|
|
|
|
push(@fixed, $rawline) if ($fix);
|
|
|
|
if ($rawline=~/^\+\+\+\s+(\S+)/) {
|
|
$setup_docs = 0;
|
|
if ($1 =~ m@Documentation/admin-guide/kernel-parameters.rst$@) {
|
|
$setup_docs = 1;
|
|
}
|
|
#next;
|
|
}
|
|
if ($rawline =~ /^\@\@ -\d+(?:,\d+)? \+(\d+)(,(\d+))? \@\@/) {
|
|
$realline=$1-1;
|
|
if (defined $2) {
|
|
$realcnt=$3+1;
|
|
} else {
|
|
$realcnt=1+1;
|
|
}
|
|
$in_comment = 0;
|
|
|
|
# Guestimate if this is a continuing comment. Run
|
|
# the context looking for a comment "edge". If this
|
|
# edge is a close comment then we must be in a comment
|
|
# at context start.
|
|
my $edge;
|
|
my $cnt = $realcnt;
|
|
for (my $ln = $linenr + 1; $cnt > 0; $ln++) {
|
|
next if (defined $rawlines[$ln - 1] &&
|
|
$rawlines[$ln - 1] =~ /^-/);
|
|
$cnt--;
|
|
#print "RAW<$rawlines[$ln - 1]>\n";
|
|
last if (!defined $rawlines[$ln - 1]);
|
|
if ($rawlines[$ln - 1] =~ m@(/\*|\*/)@ &&
|
|
$rawlines[$ln - 1] !~ m@"[^"]*(?:/\*|\*/)[^"]*"@) {
|
|
($edge) = $1;
|
|
last;
|
|
}
|
|
}
|
|
if (defined $edge && $edge eq '*/') {
|
|
$in_comment = 1;
|
|
}
|
|
|
|
# Guestimate if this is a continuing comment. If this
|
|
# is the start of a diff block and this line starts
|
|
# ' *' then it is very likely a comment.
|
|
if (!defined $edge &&
|
|
$rawlines[$linenr] =~ m@^.\s*(?:\*\*+| \*)(?:\s|$)@)
|
|
{
|
|
$in_comment = 1;
|
|
}
|
|
|
|
##print "COMMENT:$in_comment edge<$edge> $rawline\n";
|
|
sanitise_line_reset($in_comment);
|
|
|
|
} elsif ($realcnt && $rawline =~ /^(?:\+| |$)/) {
|
|
# Standardise the strings and chars within the input to
|
|
# simplify matching -- only bother with positive lines.
|
|
$line = sanitise_line($rawline);
|
|
}
|
|
push(@lines, $line);
|
|
|
|
if ($realcnt > 1) {
|
|
$realcnt-- if ($line =~ /^(?:\+| |$)/);
|
|
} else {
|
|
$realcnt = 0;
|
|
}
|
|
|
|
#print "==>$rawline\n";
|
|
#print "-->$line\n";
|
|
|
|
if ($setup_docs && $line =~ /^\+/) {
|
|
push(@setup_docs, $line);
|
|
}
|
|
}
|
|
|
|
$prefix = '';
|
|
|
|
$realcnt = 0;
|
|
$linenr = 0;
|
|
$fixlinenr = -1;
|
|
foreach my $line (@lines) {
|
|
$linenr++;
|
|
$fixlinenr++;
|
|
my $sline = $line; #copy of $line
|
|
$sline =~ s/$;/ /g; #with comments as spaces
|
|
|
|
my $rawline = $rawlines[$linenr - 1];
|
|
|
|
# check if it's a mode change, rename or start of a patch
|
|
if (!$in_commit_log &&
|
|
($line =~ /^ mode change [0-7]+ => [0-7]+ \S+\s*$/ ||
|
|
($line =~ /^rename (?:from|to) \S+\s*$/ ||
|
|
$line =~ /^diff --git a\/[\w\/\.\_\-]+ b\/\S+\s*$/))) {
|
|
$is_patch = 1;
|
|
}
|
|
|
|
#extract the line range in the file after the patch is applied
|
|
if (!$in_commit_log &&
|
|
$line =~ /^\@\@ -\d+(?:,\d+)? \+(\d+)(,(\d+))? \@\@(.*)/) {
|
|
my $context = $4;
|
|
$is_patch = 1;
|
|
$first_line = $linenr + 1;
|
|
$realline=$1-1;
|
|
if (defined $2) {
|
|
$realcnt=$3+1;
|
|
} else {
|
|
$realcnt=1+1;
|
|
}
|
|
annotate_reset();
|
|
$prev_values = 'E';
|
|
|
|
%suppress_ifbraces = ();
|
|
%suppress_whiletrailers = ();
|
|
%suppress_export = ();
|
|
$suppress_statement = 0;
|
|
if ($context =~ /\b(\w+)\s*\(/) {
|
|
$context_function = $1;
|
|
} else {
|
|
undef $context_function;
|
|
}
|
|
next;
|
|
|
|
# track the line number as we move through the hunk, note that
|
|
# new versions of GNU diff omit the leading space on completely
|
|
# blank context lines so we need to count that too.
|
|
} elsif ($line =~ /^( |\+|$)/) {
|
|
$realline++;
|
|
$realcnt-- if ($realcnt != 0);
|
|
|
|
# Measure the line length and indent.
|
|
($length, $indent) = line_stats($rawline);
|
|
|
|
# Track the previous line.
|
|
($prevline, $stashline) = ($stashline, $line);
|
|
($previndent, $stashindent) = ($stashindent, $indent);
|
|
($prevrawline, $stashrawline) = ($stashrawline, $rawline);
|
|
|
|
#warn "line<$line>\n";
|
|
|
|
} elsif ($realcnt == 1) {
|
|
$realcnt--;
|
|
}
|
|
|
|
my $hunk_line = ($realcnt != 0);
|
|
|
|
$here = "#$linenr: " if (!$file);
|
|
$here = "#$realline: " if ($file);
|
|
|
|
my $found_file = 0;
|
|
# extract the filename as it passes
|
|
if ($line =~ /^diff --git.*?(\S+)$/) {
|
|
$realfile = $1;
|
|
$realfile =~ s@^([^/]*)/@@ if (!$file);
|
|
$in_commit_log = 0;
|
|
$found_file = 1;
|
|
} elsif ($line =~ /^\+\+\+\s+(\S+)/) {
|
|
$realfile = $1;
|
|
$realfile =~ s@^([^/]*)/@@ if (!$file);
|
|
$in_commit_log = 0;
|
|
|
|
$p1_prefix = $1;
|
|
if (!$file && $tree && $p1_prefix ne '' &&
|
|
-e "$root/$p1_prefix") {
|
|
WARN("PATCH_PREFIX",
|
|
"patch prefix '$p1_prefix' exists, appears to be a -p0 patch\n");
|
|
}
|
|
|
|
if ($realfile =~ m@^include/asm/@) {
|
|
ERROR("MODIFIED_INCLUDE_ASM",
|
|
"do not modify files in include/asm, change architecture specific files in include/asm-<architecture>\n" . "$here$rawline\n");
|
|
}
|
|
$found_file = 1;
|
|
}
|
|
|
|
#make up the handle for any error we report on this line
|
|
if ($showfile) {
|
|
$prefix = "$realfile:$realline: "
|
|
} elsif ($emacs) {
|
|
if ($file) {
|
|
$prefix = "$filename:$realline: ";
|
|
} else {
|
|
$prefix = "$filename:$linenr: ";
|
|
}
|
|
}
|
|
|
|
if ($found_file) {
|
|
if (is_maintained_obsolete($realfile)) {
|
|
WARN("OBSOLETE",
|
|
"$realfile is marked as 'obsolete' in the MAINTAINERS hierarchy. No unnecessary modifications please.\n");
|
|
}
|
|
if ($realfile =~ m@^(?:drivers/net/|net/|drivers/staging/)@) {
|
|
$check = 1;
|
|
} else {
|
|
$check = $check_orig;
|
|
}
|
|
$checklicenseline = 1;
|
|
|
|
if ($realfile !~ /^MAINTAINERS/) {
|
|
my $last_binding_patch = $is_binding_patch;
|
|
|
|
$is_binding_patch = () = $realfile =~ m@^(?:Documentation/devicetree/|include/dt-bindings/)@;
|
|
|
|
if (($last_binding_patch != -1) &&
|
|
($last_binding_patch ^ $is_binding_patch)) {
|
|
WARN("DT_SPLIT_BINDING_PATCH",
|
|
"DT binding docs and includes should be a separate patch. See: Documentation/devicetree/bindings/submitting-patches.txt\n");
|
|
}
|
|
}
|
|
|
|
next;
|
|
}
|
|
$here .= "FILE: $realfile:$realline:" if ($realcnt != 0);
|
|
|
|
my $hereline = "$here\n$rawline\n";
|
|
my $herecurr = "$here\n$rawline\n";
|
|
my $hereprev = "$here\n$prevrawline\n$rawline\n";
|
|
|
|
if ($shorttext != AFTER_SHORTTEXT) {
|
|
if ($shorttext == IN_SHORTTEXT_BLANKLINE && $line=~/\S/) {
|
|
# the subject line was just processed,
|
|
# a blank line must be next
|
|
WARN("NONBLANK_AFTER_SUMMARY",
|
|
"non-blank line after summary line\n" . $herecurr);
|
|
$shorttext = IN_SHORTTEXT;
|
|
# this non-blank line may or may not be commit text -
|
|
# a warning has been generated so assume it is commit
|
|
# text and move on
|
|
$commit_text_present = 1;
|
|
# fall through and treat this line as IN_SHORTTEXT
|
|
}
|
|
if ($shorttext == IN_SHORTTEXT) {
|
|
if ($line=~/^---/ || $line=~/^diff.*/) {
|
|
if ($commit_text_present == 0) {
|
|
WARN("NO_COMMIT_TEXT",
|
|
"please add commit text explaining " .
|
|
"*why* the change is needed\n" .
|
|
$herecurr);
|
|
}
|
|
$shorttext = AFTER_SHORTTEXT;
|
|
} elsif ($line=~/^\s*change-id:/i ||
|
|
$line=~/^\s*signed-off-by:/i ||
|
|
$line=~/^\s*crs-fixed:/i ||
|
|
$line=~/^\s*acked-by:/i) {
|
|
# this is a tag, there must be commit
|
|
# text by now
|
|
if ($commit_text_present == 0) {
|
|
WARN("NO_COMMIT_TEXT",
|
|
"please add commit text explaining " .
|
|
"*why* the change is needed\n" .
|
|
$herecurr);
|
|
# prevent duplicate warnings
|
|
$commit_text_present = 1;
|
|
}
|
|
} elsif ($line=~/\S/) {
|
|
$commit_text_present = 1;
|
|
}
|
|
} elsif ($shorttext == IN_SHORTTEXT_BLANKLINE) {
|
|
# case of non-blank line in this state handled above
|
|
$shorttext = IN_SHORTTEXT;
|
|
} elsif ($shorttext == CHECK_NEXT_SHORTTEXT) {
|
|
# The Subject line doesn't have to be the last header in the patch.
|
|
# Avoid moving to the IN_SHORTTEXT state until clear of all headers.
|
|
# Per RFC5322, continuation lines must be folded, so any left-justified
|
|
# text which looks like a header is definitely a header.
|
|
if ($line!~/^[\x21-\x39\x3b-\x7e]+:/) {
|
|
$shorttext = IN_SHORTTEXT;
|
|
# Check for Subject line followed by a blank line.
|
|
if (length($line) != 0) {
|
|
WARN("NONBLANK_AFTER_SUMMARY",
|
|
"non-blank line after " .
|
|
"summary line\n" .
|
|
$sublinenr . $here .
|
|
"\n" . $subjectline .
|
|
"\n" . $line . "\n");
|
|
# this non-blank line may or may not
|
|
# be commit text - a warning has been
|
|
# generated so assume it is commit
|
|
# text and move on
|
|
$commit_text_present = 1;
|
|
}
|
|
}
|
|
# The next two cases are BEFORE_SHORTTEXT.
|
|
} elsif ($line=~/^Subject: \[[^\]]*\] (.*)/) {
|
|
# This is the subject line. Go to
|
|
# CHECK_NEXT_SHORTTEXT to wait for the commit
|
|
# text to show up.
|
|
$shorttext = CHECK_NEXT_SHORTTEXT;
|
|
$subjectline = $line;
|
|
$sublinenr = "#$linenr & ";
|
|
# Check for Subject line less than line limit
|
|
if (length($1) > SHORTTEXT_LIMIT && !($1 =~ m/Revert\ \"/)) {
|
|
WARN("LONG_SUMMARY_LINE",
|
|
"summary line over " .
|
|
SHORTTEXT_LIMIT .
|
|
" characters\n" . $herecurr);
|
|
}
|
|
} elsif ($line=~/^ (.*)/) {
|
|
# Indented format, this must be the summary
|
|
# line (i.e. git show). There will be no more
|
|
# headers so we are now in the shorttext.
|
|
$shorttext = IN_SHORTTEXT_BLANKLINE;
|
|
$shorttext_exspc = 4;
|
|
if (length($1) > SHORTTEXT_LIMIT && !($1 =~ m/Revert\ \"/)) {
|
|
WARN("LONG_SUMMARY_LINE",
|
|
"summary line over " .
|
|
SHORTTEXT_LIMIT .
|
|
" characters\n" . $herecurr);
|
|
}
|
|
}
|
|
}
|
|
|
|
$cnt_lines++ if ($realcnt != 0);
|
|
|
|
# Verify the existence of a commit log if appropriate
|
|
# 2 is used because a $signature is counted in $commit_log_lines
|
|
if ($in_commit_log) {
|
|
if ($line !~ /^\s*$/) {
|
|
$commit_log_lines++; #could be a $signature
|
|
}
|
|
} elsif ($has_commit_log && $commit_log_lines < 2) {
|
|
WARN("COMMIT_MESSAGE",
|
|
"Missing commit description - Add an appropriate one\n");
|
|
$commit_log_lines = 2; #warn only once
|
|
}
|
|
|
|
# Check if the commit log has what seems like a diff which can confuse patch
|
|
if ($in_commit_log && !$commit_log_has_diff &&
|
|
(($line =~ m@^\s+diff\b.*a/([\w/]+)@ &&
|
|
$line =~ m@^\s+diff\b.*a/[\w/]+\s+b/$1\b@) ||
|
|
$line =~ m@^\s*(?:\-\-\-\s+a/|\+\+\+\s+b/)@ ||
|
|
$line =~ m/^\s*\@\@ \-\d+,\d+ \+\d+,\d+ \@\@/)) {
|
|
ERROR("DIFF_IN_COMMIT_MSG",
|
|
"Avoid using diff content in the commit message - patch(1) might not work\n" . $herecurr);
|
|
$commit_log_has_diff = 1;
|
|
}
|
|
|
|
# Check for incorrect file permissions
|
|
if ($line =~ /^new (file )?mode.*[7531]\d{0,2}$/) {
|
|
my $permhere = $here . "FILE: $realfile\n";
|
|
if ($realfile !~ m@scripts/@ &&
|
|
$realfile !~ /\.(py|pl|awk|sh)$/) {
|
|
ERROR("EXECUTE_PERMISSIONS",
|
|
"do not set execute permissions for source files\n" . $permhere);
|
|
}
|
|
}
|
|
|
|
# Check the patch for a From:
|
|
if (decode("MIME-Header", $line) =~ /^From:\s*(.*)/) {
|
|
$author = $1;
|
|
$author = encode("utf8", $author) if ($line =~ /=\?utf-8\?/i);
|
|
$author =~ s/"//g;
|
|
}
|
|
|
|
# Check the patch for a signoff:
|
|
if ($line =~ /^\s*signed-off-by:/i) {
|
|
$signoff++;
|
|
$in_commit_log = 0;
|
|
if ($author ne '') {
|
|
my $l = $line;
|
|
$l =~ s/"//g;
|
|
if ($l =~ /^\s*signed-off-by:\s*\Q$author\E/i) {
|
|
$authorsignoff = 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
# Check if MAINTAINERS is being updated. If so, there's probably no need to
|
|
# emit the "does MAINTAINERS need updating?" message on file add/move/delete
|
|
if ($line =~ /^\s*MAINTAINERS\s*\|/) {
|
|
$reported_maintainer_file = 1;
|
|
}
|
|
|
|
# Check signature styles
|
|
if (!$in_header_lines &&
|
|
$line =~ /^(\s*)([a-z0-9_-]+by:|$signature_tags)(\s*)(.*)/i) {
|
|
my $space_before = $1;
|
|
my $sign_off = $2;
|
|
my $space_after = $3;
|
|
my $email = $4;
|
|
my $ucfirst_sign_off = ucfirst(lc($sign_off));
|
|
|
|
if ($sign_off !~ /$signature_tags/) {
|
|
WARN("BAD_SIGN_OFF",
|
|
"Non-standard signature: $sign_off\n" . $herecurr);
|
|
}
|
|
if (defined $space_before && $space_before ne "") {
|
|
if (WARN("BAD_SIGN_OFF",
|
|
"Do not use whitespace before $ucfirst_sign_off\n" . $herecurr) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =
|
|
"$ucfirst_sign_off $email";
|
|
}
|
|
}
|
|
if ($sign_off =~ /-by:$/i && $sign_off ne $ucfirst_sign_off) {
|
|
if (WARN("BAD_SIGN_OFF",
|
|
"'$ucfirst_sign_off' is the preferred signature form\n" . $herecurr) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =
|
|
"$ucfirst_sign_off $email";
|
|
}
|
|
|
|
}
|
|
if (!defined $space_after || $space_after ne " ") {
|
|
if (WARN("BAD_SIGN_OFF",
|
|
"Use a single space after $ucfirst_sign_off\n" . $herecurr) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =
|
|
"$ucfirst_sign_off $email";
|
|
}
|
|
}
|
|
|
|
my ($email_name, $email_address, $comment) = parse_email($email);
|
|
my $suggested_email = format_email(($email_name, $email_address));
|
|
if ($suggested_email eq "") {
|
|
ERROR("BAD_SIGN_OFF",
|
|
"Unrecognized email address: '$email'\n" . $herecurr);
|
|
} else {
|
|
my $dequoted = $suggested_email;
|
|
$dequoted =~ s/^"//;
|
|
$dequoted =~ s/" </ </;
|
|
# Don't force email to have quotes
|
|
# Allow just an angle bracketed address
|
|
if ("$dequoted$comment" ne $email &&
|
|
"<$email_address>$comment" ne $email &&
|
|
"$suggested_email$comment" ne $email) {
|
|
WARN("BAD_SIGN_OFF",
|
|
"email address '$email' might be better as '$suggested_email$comment'\n" . $herecurr);
|
|
}
|
|
}
|
|
|
|
# Check for duplicate signatures
|
|
my $sig_nospace = $line;
|
|
$sig_nospace =~ s/\s//g;
|
|
$sig_nospace = lc($sig_nospace);
|
|
if (defined $signatures{$sig_nospace}) {
|
|
WARN("DUPLICATE_SIGN_OFF",
|
|
"Duplicate signature\n" . $herecurr);
|
|
} else {
|
|
$signatures{$sig_nospace} = 1;
|
|
}
|
|
}
|
|
|
|
# Check email subject for common tools that don't need to be mentioned
|
|
if ($in_header_lines &&
|
|
$line =~ /^Subject:.*\b(?:checkpatch|sparse|smatch)\b[^:]/i) {
|
|
WARN("EMAIL_SUBJECT",
|
|
"A patch subject line should describe the change not the tool that found it\n" . $herecurr);
|
|
}
|
|
|
|
# Check for unwanted Gerrit info
|
|
if ($in_commit_log && $line =~ /^\s*change-id:/i) {
|
|
ERROR("GERRIT_CHANGE_ID",
|
|
"Remove Gerrit Change-Id's before submitting upstream.\n" . $herecurr);
|
|
}
|
|
|
|
# Check if the commit log is in a possible stack dump
|
|
if ($in_commit_log && !$commit_log_possible_stack_dump &&
|
|
($line =~ /^\s*(?:WARNING:|BUG:)/ ||
|
|
$line =~ /^\s*\[\s*\d+\.\d{6,6}\s*\]/ ||
|
|
# timestamp
|
|
$line =~ /^\s*\[\<[0-9a-fA-F]{8,}\>\]/)) {
|
|
# stack dump address
|
|
$commit_log_possible_stack_dump = 1;
|
|
}
|
|
|
|
# Check for line lengths > 75 in commit log, warn once
|
|
if ($in_commit_log && !$commit_log_long_line &&
|
|
length($line) > 75 &&
|
|
!($line =~ /^\s*[a-zA-Z0-9_\/\.\-\,]+\s+\|\s+\d+/ ||
|
|
# file delta changes
|
|
$line =~ /^\s*(?:[\w\.\-]+\/)++[\w\.\-]+:/ ||
|
|
# filename then :
|
|
$line =~ /^\s*(?:Fixes:|Link:)/i ||
|
|
# A Fixes: or Link: line
|
|
$commit_log_possible_stack_dump)) {
|
|
WARN("COMMIT_LOG_LONG_LINE",
|
|
"Possible unwrapped commit description (prefer a maximum 75 chars per line)\n" . $herecurr);
|
|
$commit_log_long_line = 1;
|
|
}
|
|
|
|
# Reset possible stack dump if a blank line is found
|
|
if ($in_commit_log && $commit_log_possible_stack_dump &&
|
|
$line =~ /^\s*$/) {
|
|
$commit_log_possible_stack_dump = 0;
|
|
}
|
|
|
|
# Check for git id commit length and improperly formed commit descriptions
|
|
if ($in_commit_log && !$commit_log_possible_stack_dump &&
|
|
$line !~ /^\s*(?:Link|Patchwork|http|https|BugLink):/i &&
|
|
$line !~ /^This reverts commit [0-9a-f]{7,40}/ &&
|
|
($line =~ /\bcommit\s+[0-9a-f]{5,}\b/i ||
|
|
($line =~ /(?:\s|^)[0-9a-f]{12,40}(?:[\s"'\(\[]|$)/i &&
|
|
$line !~ /[\<\[][0-9a-f]{12,40}[\>\]]/i &&
|
|
$line !~ /\bfixes:\s*[0-9a-f]{12,40}/i))) {
|
|
my $init_char = "c";
|
|
my $orig_commit = "";
|
|
my $short = 1;
|
|
my $long = 0;
|
|
my $case = 1;
|
|
my $space = 1;
|
|
my $hasdesc = 0;
|
|
my $hasparens = 0;
|
|
my $id = '0123456789ab';
|
|
my $orig_desc = "commit description";
|
|
my $description = "";
|
|
|
|
if ($line =~ /\b(c)ommit\s+([0-9a-f]{5,})\b/i) {
|
|
$init_char = $1;
|
|
$orig_commit = lc($2);
|
|
} elsif ($line =~ /\b([0-9a-f]{12,40})\b/i) {
|
|
$orig_commit = lc($1);
|
|
}
|
|
|
|
$short = 0 if ($line =~ /\bcommit\s+[0-9a-f]{12,40}/i);
|
|
$long = 1 if ($line =~ /\bcommit\s+[0-9a-f]{41,}/i);
|
|
$space = 0 if ($line =~ /\bcommit [0-9a-f]/i);
|
|
$case = 0 if ($line =~ /\b[Cc]ommit\s+[0-9a-f]{5,40}[^A-F]/);
|
|
if ($line =~ /\bcommit\s+[0-9a-f]{5,}\s+\("([^"]+)"\)/i) {
|
|
$orig_desc = $1;
|
|
$hasparens = 1;
|
|
} elsif ($line =~ /\bcommit\s+[0-9a-f]{5,}\s*$/i &&
|
|
defined $rawlines[$linenr] &&
|
|
$rawlines[$linenr] =~ /^\s*\("([^"]+)"\)/) {
|
|
$orig_desc = $1;
|
|
$hasparens = 1;
|
|
} elsif ($line =~ /\bcommit\s+[0-9a-f]{5,}\s+\("[^"]+$/i &&
|
|
defined $rawlines[$linenr] &&
|
|
$rawlines[$linenr] =~ /^\s*[^"]+"\)/) {
|
|
$line =~ /\bcommit\s+[0-9a-f]{5,}\s+\("([^"]+)$/i;
|
|
$orig_desc = $1;
|
|
$rawlines[$linenr] =~ /^\s*([^"]+)"\)/;
|
|
$orig_desc .= " " . $1;
|
|
$hasparens = 1;
|
|
}
|
|
|
|
($id, $description) = git_commit_info($orig_commit,
|
|
$id, $orig_desc);
|
|
|
|
if (defined($id) &&
|
|
($short || $long || $space || $case || ($orig_desc ne $description) || !$hasparens)) {
|
|
ERROR("GIT_COMMIT_ID",
|
|
"Please use git commit description style 'commit <12+ chars of sha1> (\"<title line>\")' - ie: '${init_char}ommit $id (\"$description\")'\n" . $herecurr);
|
|
}
|
|
}
|
|
|
|
# Check for added, moved or deleted files
|
|
if (!$reported_maintainer_file && !$in_commit_log &&
|
|
($line =~ /^(?:new|deleted) file mode\s*\d+\s*$/ ||
|
|
$line =~ /^rename (?:from|to) [\w\/\.\-]+\s*$/ ||
|
|
($line =~ /\{\s*([\w\/\.\-]*)\s*\=\>\s*([\w\/\.\-]*)\s*\}/ &&
|
|
(defined($1) || defined($2))))) {
|
|
$is_patch = 1;
|
|
$reported_maintainer_file = 1;
|
|
WARN("FILE_PATH_CHANGES",
|
|
"added, moved or deleted file(s), does MAINTAINERS need updating?\n" . $herecurr);
|
|
}
|
|
|
|
# Check for wrappage within a valid hunk of the file
|
|
if ($realcnt != 0 && $line !~ m{^(?:\+|-| |\\ No newline|$)}) {
|
|
ERROR("CORRUPTED_PATCH",
|
|
"patch seems to be corrupt (line wrapped?)\n" .
|
|
$herecurr) if (!$emitted_corrupt++);
|
|
}
|
|
|
|
# UTF-8 regex found at http://www.w3.org/International/questions/qa-forms-utf-8.en.php
|
|
if (($realfile =~ /^$/ || $line =~ /^\+/) &&
|
|
$rawline !~ m/^$UTF8*$/) {
|
|
my ($utf8_prefix) = ($rawline =~ /^($UTF8*)/);
|
|
|
|
my $blank = copy_spacing($rawline);
|
|
my $ptr = substr($blank, 0, length($utf8_prefix)) . "^";
|
|
my $hereptr = "$hereline$ptr\n";
|
|
|
|
CHK("INVALID_UTF8",
|
|
"Invalid UTF-8, patch and commit message should be encoded in UTF-8\n" . $hereptr);
|
|
}
|
|
|
|
# Check if it's the start of a commit log
|
|
# (not a header line and we haven't seen the patch filename)
|
|
if ($in_header_lines && $realfile =~ /^$/ &&
|
|
!($rawline =~ /^\s+(?:\S|$)/ ||
|
|
$rawline =~ /^(?:commit\b|from\b|[\w-]+:)/i)) {
|
|
$in_header_lines = 0;
|
|
$in_commit_log = 1;
|
|
$has_commit_log = 1;
|
|
}
|
|
|
|
# Check if there is UTF-8 in a commit log when a mail header has explicitly
|
|
# declined it, i.e defined some charset where it is missing.
|
|
if ($in_header_lines &&
|
|
$rawline =~ /^Content-Type:.+charset="(.+)".*$/ &&
|
|
$1 !~ /utf-8/i) {
|
|
$non_utf8_charset = 1;
|
|
}
|
|
|
|
if ($in_commit_log && $non_utf8_charset && $realfile =~ /^$/ &&
|
|
$rawline =~ /$NON_ASCII_UTF8/) {
|
|
WARN("UTF8_BEFORE_PATCH",
|
|
"8-bit UTF-8 used in possible commit log\n" . $herecurr);
|
|
}
|
|
|
|
# Check for absolute kernel paths in commit message
|
|
if ($tree && $in_commit_log) {
|
|
while ($line =~ m{(?:^|\s)(/\S*)}g) {
|
|
my $file = $1;
|
|
|
|
if ($file =~ m{^(.*?)(?::\d+)+:?$} &&
|
|
check_absolute_file($1, $herecurr)) {
|
|
#
|
|
} else {
|
|
check_absolute_file($file, $herecurr);
|
|
}
|
|
}
|
|
}
|
|
|
|
# Check for various typo / spelling mistakes
|
|
if (defined($misspellings) &&
|
|
($in_commit_log || $line =~ /^(?:\+|Subject:)/i)) {
|
|
while ($rawline =~ /(?:^|[^a-z@])($misspellings)(?:\b|$|[^a-z@])/gi) {
|
|
my $typo = $1;
|
|
my $typo_fix = $spelling_fix{lc($typo)};
|
|
$typo_fix = ucfirst($typo_fix) if ($typo =~ /^[A-Z]/);
|
|
$typo_fix = uc($typo_fix) if ($typo =~ /^[A-Z]+$/);
|
|
my $msg_level = \&WARN;
|
|
$msg_level = \&CHK if ($file);
|
|
if (&{$msg_level}("TYPO_SPELLING",
|
|
"'$typo' may be misspelled - perhaps '$typo_fix'?\n" . $herecurr) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =~ s/(^|[^A-Za-z@])($typo)($|[^A-Za-z@])/$1$typo_fix$3/;
|
|
}
|
|
}
|
|
}
|
|
|
|
# ignore non-hunk lines and lines being removed
|
|
next if (!$hunk_line || $line =~ /^-/);
|
|
|
|
#trailing whitespace
|
|
if ($line =~ /^\+.*\015/) {
|
|
my $herevet = "$here\n" . cat_vet($rawline) . "\n";
|
|
if (ERROR("DOS_LINE_ENDINGS",
|
|
"DOS line endings\n" . $herevet) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =~ s/[\s\015]+$//;
|
|
}
|
|
} elsif ($rawline =~ /^\+.*\S\s+$/ || $rawline =~ /^\+\s+$/) {
|
|
my $herevet = "$here\n" . cat_vet($rawline) . "\n";
|
|
if (ERROR("TRAILING_WHITESPACE",
|
|
"trailing whitespace\n" . $herevet) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =~ s/\s+$//;
|
|
}
|
|
|
|
$rpt_cleaners = 1;
|
|
}
|
|
|
|
# Check for FSF mailing addresses.
|
|
if ($rawline =~ /\bwrite to the Free/i ||
|
|
$rawline =~ /\b675\s+Mass\s+Ave/i ||
|
|
$rawline =~ /\b59\s+Temple\s+Pl/i ||
|
|
$rawline =~ /\b51\s+Franklin\s+St/i) {
|
|
my $herevet = "$here\n" . cat_vet($rawline) . "\n";
|
|
my $msg_level = \&ERROR;
|
|
$msg_level = \&CHK if ($file);
|
|
&{$msg_level}("FSF_MAILING_ADDRESS",
|
|
"Do not include the paragraph about writing to the Free Software Foundation's mailing address from the sample GPL notice. The FSF has changed addresses in the past, and may do so again. Linux already includes a copy of the GPL.\n" . $herevet)
|
|
}
|
|
|
|
# check for Kconfig help text having a real description
|
|
# Only applies when adding the entry originally, after that we do not have
|
|
# sufficient context to determine whether it is indeed long enough.
|
|
if ($realfile =~ /Kconfig/ &&
|
|
# 'choice' is usually the last thing on the line (though
|
|
# Kconfig supports named choices), so use a word boundary
|
|
# (\b) rather than a whitespace character (\s)
|
|
$line =~ /^\+\s*(?:config|menuconfig|choice)\b/) {
|
|
my $length = 0;
|
|
my $cnt = $realcnt;
|
|
my $ln = $linenr + 1;
|
|
my $f;
|
|
my $is_start = 0;
|
|
my $is_end = 0;
|
|
for (; $cnt > 0 && defined $lines[$ln - 1]; $ln++) {
|
|
$f = $lines[$ln - 1];
|
|
$cnt-- if ($lines[$ln - 1] !~ /^-/);
|
|
$is_end = $lines[$ln - 1] =~ /^\+/;
|
|
|
|
next if ($f =~ /^-/);
|
|
last if (!$file && $f =~ /^\@\@/);
|
|
|
|
if ($lines[$ln - 1] =~ /^\+\s*(?:bool|tristate|prompt)\s*["']/) {
|
|
$is_start = 1;
|
|
} elsif ($lines[$ln - 1] =~ /^\+\s*(?:help|---help---)\s*$/) {
|
|
if ($lines[$ln - 1] =~ "---help---") {
|
|
WARN("CONFIG_DESCRIPTION",
|
|
"prefer 'help' over '---help---' for new help texts\n" . $herecurr);
|
|
}
|
|
$length = -1;
|
|
}
|
|
|
|
$f =~ s/^.//;
|
|
$f =~ s/#.*//;
|
|
$f =~ s/^\s+//;
|
|
next if ($f =~ /^$/);
|
|
|
|
# This only checks context lines in the patch
|
|
# and so hopefully shouldn't trigger false
|
|
# positives, even though some of these are
|
|
# common words in help texts
|
|
if ($f =~ /^\s*(?:config|menuconfig|choice|endchoice|
|
|
if|endif|menu|endmenu|source)\b/x) {
|
|
$is_end = 1;
|
|
last;
|
|
}
|
|
$length++;
|
|
}
|
|
if ($is_start && $is_end && $length < $min_conf_desc_length) {
|
|
WARN("CONFIG_DESCRIPTION",
|
|
"please write a paragraph that describes the config symbol fully\n" . $herecurr);
|
|
}
|
|
#print "is_start<$is_start> is_end<$is_end> length<$length>\n";
|
|
}
|
|
|
|
# check for MAINTAINERS entries that don't have the right form
|
|
if ($realfile =~ /^MAINTAINERS$/ &&
|
|
$rawline =~ /^\+[A-Z]:/ &&
|
|
$rawline !~ /^\+[A-Z]:\t\S/) {
|
|
if (WARN("MAINTAINERS_STYLE",
|
|
"MAINTAINERS entries use one tab after TYPE:\n" . $herecurr) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =~ s/^(\+[A-Z]):\s*/$1:\t/;
|
|
}
|
|
}
|
|
|
|
# discourage the use of boolean for type definition attributes of Kconfig options
|
|
if ($realfile =~ /Kconfig/ &&
|
|
$line =~ /^\+\s*\bboolean\b/) {
|
|
WARN("CONFIG_TYPE_BOOLEAN",
|
|
"Use of boolean is deprecated, please use bool instead.\n" . $herecurr);
|
|
}
|
|
|
|
if (($realfile =~ /Makefile.*/ || $realfile =~ /Kbuild.*/) &&
|
|
($line =~ /\+(EXTRA_[A-Z]+FLAGS).*/)) {
|
|
my $flag = $1;
|
|
my $replacement = {
|
|
'EXTRA_AFLAGS' => 'asflags-y',
|
|
'EXTRA_CFLAGS' => 'ccflags-y',
|
|
'EXTRA_CPPFLAGS' => 'cppflags-y',
|
|
'EXTRA_LDFLAGS' => 'ldflags-y',
|
|
};
|
|
|
|
WARN("DEPRECATED_VARIABLE",
|
|
"Use of $flag is deprecated, please use \`$replacement->{$flag} instead.\n" . $herecurr) if ($replacement->{$flag});
|
|
}
|
|
|
|
# check for DT compatible documentation
|
|
if (defined $root &&
|
|
(($realfile =~ /\.dtsi?$/ && $line =~ /^\+\s*compatible\s*=\s*\"/) ||
|
|
($realfile =~ /\.[ch]$/ && $line =~ /^\+.*\.compatible\s*=\s*\"/))) {
|
|
|
|
my @compats = $rawline =~ /\"([a-zA-Z0-9\-\,\.\+_]+)\"/g;
|
|
|
|
my $dt_path = $root . "/Documentation/devicetree/bindings/";
|
|
my $vp_file = $dt_path . "vendor-prefixes.txt";
|
|
|
|
foreach my $compat (@compats) {
|
|
my $compat2 = $compat;
|
|
$compat2 =~ s/\,[a-zA-Z0-9]*\-/\,<\.\*>\-/;
|
|
my $compat3 = $compat;
|
|
$compat3 =~ s/\,([a-z]*)[0-9]*\-/\,$1<\.\*>\-/;
|
|
`grep -ERq "$compat|$compat2|$compat3" $dt_path`;
|
|
if ( $? >> 8 ) {
|
|
WARN("UNDOCUMENTED_DT_STRING",
|
|
"DT compatible string \"$compat\" appears un-documented -- check $dt_path\n" . $herecurr);
|
|
}
|
|
|
|
next if $compat !~ /^([a-zA-Z0-9\-]+)\,/;
|
|
my $vendor = $1;
|
|
`grep -Eq "^$vendor\\b" $vp_file`;
|
|
if ( $? >> 8 ) {
|
|
WARN("UNDOCUMENTED_DT_STRING",
|
|
"DT compatible string vendor \"$vendor\" appears un-documented -- check $vp_file\n" . $herecurr);
|
|
}
|
|
}
|
|
}
|
|
|
|
# check for using SPDX license tag at beginning of files
|
|
if ($realline == $checklicenseline) {
|
|
if ($rawline =~ /^[ \+]\s*\#\!\s*\//) {
|
|
$checklicenseline = 2;
|
|
} elsif ($rawline =~ /^\+/) {
|
|
my $comment = "";
|
|
if ($realfile =~ /\.(h|s|S)$/) {
|
|
$comment = '/*';
|
|
} elsif ($realfile =~ /\.(c|dts|dtsi)$/) {
|
|
$comment = '//';
|
|
} elsif (($checklicenseline == 2) || $realfile =~ /\.(sh|pl|py|awk|tc)$/) {
|
|
$comment = '#';
|
|
} elsif ($realfile =~ /\.rst$/) {
|
|
$comment = '..';
|
|
}
|
|
|
|
if ($comment !~ /^$/ &&
|
|
$rawline !~ /^\+\Q$comment\E SPDX-License-Identifier: /) {
|
|
WARN("SPDX_LICENSE_TAG",
|
|
"Missing or malformed SPDX-License-Identifier tag in line $checklicenseline\n" . $herecurr);
|
|
} elsif ($rawline =~ /(SPDX-License-Identifier: .*)/) {
|
|
my $spdx_license = $1;
|
|
if (!is_SPDX_License_valid($spdx_license)) {
|
|
WARN("SPDX_LICENSE_TAG",
|
|
"'$spdx_license' is not supported in LICENSES/...\n" . $herecurr);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
# check we are in a valid source file if not then ignore this hunk
|
|
next if ($realfile !~ /\.(h|c|s|S|sh|dtsi|dts)$/);
|
|
|
|
# line length limit (with some exclusions)
|
|
#
|
|
# There are a few types of lines that may extend beyond $max_line_length:
|
|
# logging functions like pr_info that end in a string
|
|
# lines with a single string
|
|
# #defines that are a single string
|
|
# lines with an RFC3986 like URL
|
|
#
|
|
# There are 3 different line length message types:
|
|
# LONG_LINE_COMMENT a comment starts before but extends beyond $max_line_length
|
|
# LONG_LINE_STRING a string starts before but extends beyond $max_line_length
|
|
# LONG_LINE all other lines longer than $max_line_length
|
|
#
|
|
# if LONG_LINE is ignored, the other 2 types are also ignored
|
|
#
|
|
|
|
if ($line =~ /^\+/ && $length > $max_line_length) {
|
|
my $msg_type = "LONG_LINE";
|
|
|
|
# Check the allowed long line types first
|
|
|
|
# logging functions that end in a string that starts
|
|
# before $max_line_length
|
|
if ($line =~ /^\+\s*$logFunctions\s*\(\s*(?:(?:KERN_\S+\s*|[^"]*))?($String\s*(?:|,|\)\s*;)\s*)$/ &&
|
|
length(expand_tabs(substr($line, 1, length($line) - length($1) - 1))) <= $max_line_length) {
|
|
$msg_type = "";
|
|
|
|
# lines with only strings (w/ possible termination)
|
|
# #defines with only strings
|
|
} elsif ($line =~ /^\+\s*$String\s*(?:\s*|,|\)\s*;)\s*$/ ||
|
|
$line =~ /^\+\s*#\s*define\s+\w+\s+$String$/) {
|
|
$msg_type = "";
|
|
|
|
# More special cases
|
|
} elsif ($line =~ /^\+.*\bEFI_GUID\s*\(/ ||
|
|
$line =~ /^\+\s*(?:\w+)?\s*DEFINE_PER_CPU/) {
|
|
$msg_type = "";
|
|
|
|
# URL ($rawline is used in case the URL is in a comment)
|
|
} elsif ($rawline =~ /^\+.*\b[a-z][\w\.\+\-]*:\/\/\S+/i) {
|
|
$msg_type = "";
|
|
|
|
# Long copyright statements are another special case
|
|
} elsif ($rawline =~ /^\+.\*.*copyright.*\(c\).*$/i) {
|
|
$msg_type = "";
|
|
|
|
# Otherwise set the alternate message types
|
|
|
|
# a comment starts before $max_line_length
|
|
} elsif ($line =~ /($;[\s$;]*)$/ &&
|
|
length(expand_tabs(substr($line, 1, length($line) - length($1) - 1))) <= $max_line_length) {
|
|
$msg_type = "LONG_LINE_COMMENT"
|
|
|
|
# a quoted string starts before $max_line_length
|
|
} elsif ($sline =~ /\s*($String(?:\s*(?:\\|,\s*|\)\s*;\s*))?)$/ &&
|
|
length(expand_tabs(substr($line, 1, length($line) - length($1) - 1))) <= $max_line_length) {
|
|
$msg_type = "LONG_LINE_STRING"
|
|
}
|
|
|
|
if ($msg_type ne "" &&
|
|
(show_type("LONG_LINE") || show_type($msg_type))) {
|
|
WARN($msg_type,
|
|
"line over $max_line_length characters\n" . $herecurr);
|
|
}
|
|
}
|
|
|
|
# check for adding lines without a newline.
|
|
if ($line =~ /^\+/ && defined $lines[$linenr] && $lines[$linenr] =~ /^\\ No newline at end of file/) {
|
|
WARN("MISSING_EOF_NEWLINE",
|
|
"adding a line without newline at end of file\n" . $herecurr);
|
|
}
|
|
|
|
# check we are in a valid source file C or perl if not then ignore this hunk
|
|
next if ($realfile !~ /\.(h|c|pl|dtsi|dts)$/);
|
|
|
|
# at the beginning of a line any tabs must come first and anything
|
|
# more than 8 must use tabs.
|
|
if ($rawline =~ /^\+\s* \t\s*\S/ ||
|
|
$rawline =~ /^\+\s* \s*/) {
|
|
my $herevet = "$here\n" . cat_vet($rawline) . "\n";
|
|
$rpt_cleaners = 1;
|
|
if (ERROR("CODE_INDENT",
|
|
"code indent should use tabs where possible\n" . $herevet) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =~ s/^\+([ \t]+)/"\+" . tabify($1)/e;
|
|
}
|
|
}
|
|
|
|
# check for space before tabs.
|
|
if ($rawline =~ /^\+/ && $rawline =~ / \t/) {
|
|
my $herevet = "$here\n" . cat_vet($rawline) . "\n";
|
|
if (WARN("SPACE_BEFORE_TAB",
|
|
"please, no space before tabs\n" . $herevet) &&
|
|
$fix) {
|
|
while ($fixed[$fixlinenr] =~
|
|
s/(^\+.*) {8,8}\t/$1\t\t/) {}
|
|
while ($fixed[$fixlinenr] =~
|
|
s/(^\+.*) +\t/$1\t/) {}
|
|
}
|
|
}
|
|
|
|
# check for assignments on the start of a line
|
|
if ($sline =~ /^\+\s+($Assignment)[^=]/) {
|
|
CHK("ASSIGNMENT_CONTINUATIONS",
|
|
"Assignment operator '$1' should be on the previous line\n" . $hereprev);
|
|
}
|
|
|
|
# check for && or || at the start of a line
|
|
if ($rawline =~ /^\+\s*(&&|\|\|)/) {
|
|
CHK("LOGICAL_CONTINUATIONS",
|
|
"Logical continuations should be on the previous line\n" . $hereprev);
|
|
}
|
|
|
|
# check indentation starts on a tab stop
|
|
if ($perl_version_ok &&
|
|
$sline =~ /^\+\t+( +)(?:$c90_Keywords\b|\{\s*$|\}\s*(?:else\b|while\b|\s*$)|$Declare\s*$Ident\s*[;=])/) {
|
|
my $indent = length($1);
|
|
if ($indent % 8) {
|
|
if (WARN("TABSTOP",
|
|
"Statements should start on a tabstop\n" . $herecurr) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =~ s@(^\+\t+) +@$1 . "\t" x ($indent/8)@e;
|
|
}
|
|
}
|
|
}
|
|
|
|
# check multi-line statement indentation matches previous line
|
|
if ($perl_version_ok &&
|
|
$prevline =~ /^\+([ \t]*)((?:$c90_Keywords(?:\s+if)\s*)|(?:$Declare\s*)?(?:$Ident|\(\s*\*\s*$Ident\s*\))\s*|(?:\*\s*)*$Lval\s*=\s*$Ident\s*)\(.*(\&\&|\|\||,)\s*$/) {
|
|
$prevline =~ /^\+(\t*)(.*)$/;
|
|
my $oldindent = $1;
|
|
my $rest = $2;
|
|
|
|
my $pos = pos_last_openparen($rest);
|
|
if ($pos >= 0) {
|
|
$line =~ /^(\+| )([ \t]*)/;
|
|
my $newindent = $2;
|
|
|
|
my $goodtabindent = $oldindent .
|
|
"\t" x ($pos / 8) .
|
|
" " x ($pos % 8);
|
|
my $goodspaceindent = $oldindent . " " x $pos;
|
|
|
|
if ($newindent ne $goodtabindent &&
|
|
$newindent ne $goodspaceindent) {
|
|
|
|
if (CHK("PARENTHESIS_ALIGNMENT",
|
|
"Alignment should match open parenthesis\n" . $hereprev) &&
|
|
$fix && $line =~ /^\+/) {
|
|
$fixed[$fixlinenr] =~
|
|
s/^\+[ \t]*/\+$goodtabindent/;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
# check for space after cast like "(int) foo" or "(struct foo) bar"
|
|
# avoid checking a few false positives:
|
|
# "sizeof(<type>)" or "__alignof__(<type>)"
|
|
# function pointer declarations like "(*foo)(int) = bar;"
|
|
# structure definitions like "(struct foo) { 0 };"
|
|
# multiline macros that define functions
|
|
# known attributes or the __attribute__ keyword
|
|
if ($line =~ /^\+(.*)\(\s*$Type\s*\)([ \t]++)((?![={]|\\$|$Attribute|__attribute__))/ &&
|
|
(!defined($1) || $1 !~ /\b(?:sizeof|__alignof__)\s*$/)) {
|
|
if (CHK("SPACING",
|
|
"No space is necessary after a cast\n" . $herecurr) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =~
|
|
s/(\(\s*$Type\s*\))[ \t]+/$1/;
|
|
}
|
|
}
|
|
|
|
# Block comment styles
|
|
# Networking with an initial /*
|
|
if ($realfile =~ m@^(drivers/net/|net/)@ &&
|
|
$prevrawline =~ /^\+[ \t]*\/\*[ \t]*$/ &&
|
|
$rawline =~ /^\+[ \t]*\*/ &&
|
|
$realline > 2) {
|
|
WARN("NETWORKING_BLOCK_COMMENT_STYLE",
|
|
"networking block comments don't use an empty /* line, use /* Comment...\n" . $hereprev);
|
|
}
|
|
|
|
# Block comments use * on subsequent lines
|
|
if ($prevline =~ /$;[ \t]*$/ && #ends in comment
|
|
$prevrawline =~ /^\+.*?\/\*/ && #starting /*
|
|
$prevrawline !~ /\*\/[ \t]*$/ && #no trailing */
|
|
$rawline =~ /^\+/ && #line is new
|
|
$rawline !~ /^\+[ \t]*\*/) { #no leading *
|
|
WARN("BLOCK_COMMENT_STYLE",
|
|
"Block comments use * on subsequent lines\n" . $hereprev);
|
|
}
|
|
|
|
# Block comments use */ on trailing lines
|
|
if ($rawline !~ m@^\+[ \t]*\*/[ \t]*$@ && #trailing */
|
|
$rawline !~ m@^\+.*/\*.*\*/[ \t]*$@ && #inline /*...*/
|
|
$rawline !~ m@^\+.*\*{2,}/[ \t]*$@ && #trailing **/
|
|
$rawline =~ m@^\+[ \t]*.+\*\/[ \t]*$@) { #non blank */
|
|
WARN("BLOCK_COMMENT_STYLE",
|
|
"Block comments use a trailing */ on a separate line\n" . $herecurr);
|
|
}
|
|
|
|
# Block comment * alignment
|
|
if ($prevline =~ /$;[ \t]*$/ && #ends in comment
|
|
$line =~ /^\+[ \t]*$;/ && #leading comment
|
|
$rawline =~ /^\+[ \t]*\*/ && #leading *
|
|
(($prevrawline =~ /^\+.*?\/\*/ && #leading /*
|
|
$prevrawline !~ /\*\/[ \t]*$/) || #no trailing */
|
|
$prevrawline =~ /^\+[ \t]*\*/)) { #leading *
|
|
my $oldindent;
|
|
$prevrawline =~ m@^\+([ \t]*/?)\*@;
|
|
if (defined($1)) {
|
|
$oldindent = expand_tabs($1);
|
|
} else {
|
|
$prevrawline =~ m@^\+(.*/?)\*@;
|
|
$oldindent = expand_tabs($1);
|
|
}
|
|
$rawline =~ m@^\+([ \t]*)\*@;
|
|
my $newindent = $1;
|
|
$newindent = expand_tabs($newindent);
|
|
if (length($oldindent) ne length($newindent)) {
|
|
WARN("BLOCK_COMMENT_STYLE",
|
|
"Block comments should align the * on each line\n" . $hereprev);
|
|
}
|
|
}
|
|
|
|
# check for missing blank lines after struct/union declarations
|
|
# with exceptions for various attributes and macros
|
|
if ($prevline =~ /^[\+ ]};?\s*$/ &&
|
|
$line =~ /^\+/ &&
|
|
!($line =~ /^\+\s*$/ ||
|
|
$line =~ /^\+\s*EXPORT_SYMBOL/ ||
|
|
$line =~ /^\+\s*MODULE_/i ||
|
|
$line =~ /^\+\s*\#\s*(?:end|elif|else)/ ||
|
|
$line =~ /^\+[a-z_]*init/ ||
|
|
$line =~ /^\+\s*(?:static\s+)?[A-Z_]*ATTR/ ||
|
|
$line =~ /^\+\s*DECLARE/ ||
|
|
$line =~ /^\+\s*builtin_[\w_]*driver/ ||
|
|
$line =~ /^\+\s*__setup/)) {
|
|
if (CHK("LINE_SPACING",
|
|
"Please use a blank line after function/struct/union/enum declarations\n" . $hereprev) &&
|
|
$fix) {
|
|
fix_insert_line($fixlinenr, "\+");
|
|
}
|
|
}
|
|
|
|
# check for multiple consecutive blank lines
|
|
if ($prevline =~ /^[\+ ]\s*$/ &&
|
|
$line =~ /^\+\s*$/ &&
|
|
$last_blank_line != ($linenr - 1)) {
|
|
if (CHK("LINE_SPACING",
|
|
"Please don't use multiple blank lines\n" . $hereprev) &&
|
|
$fix) {
|
|
fix_delete_line($fixlinenr, $rawline);
|
|
}
|
|
|
|
$last_blank_line = $linenr;
|
|
}
|
|
|
|
# check for missing blank lines after declarations
|
|
if ($sline =~ /^\+\s+\S/ && #Not at char 1
|
|
# actual declarations
|
|
($prevline =~ /^\+\s+$Declare\s*$Ident\s*[=,;:\[]/ ||
|
|
# function pointer declarations
|
|
$prevline =~ /^\+\s+$Declare\s*\(\s*\*\s*$Ident\s*\)\s*[=,;:\[\(]/ ||
|
|
# foo bar; where foo is some local typedef or #define
|
|
$prevline =~ /^\+\s+$Ident(?:\s+|\s*\*\s*)$Ident\s*[=,;\[]/ ||
|
|
# known declaration macros
|
|
$prevline =~ /^\+\s+$declaration_macros/) &&
|
|
# for "else if" which can look like "$Ident $Ident"
|
|
!($prevline =~ /^\+\s+$c90_Keywords\b/ ||
|
|
# other possible extensions of declaration lines
|
|
$prevline =~ /(?:$Compare|$Assignment|$Operators)\s*$/ ||
|
|
# not starting a section or a macro "\" extended line
|
|
$prevline =~ /(?:\{\s*|\\)$/) &&
|
|
# looks like a declaration
|
|
!($sline =~ /^\+\s+$Declare\s*$Ident\s*[=,;:\[]/ ||
|
|
# function pointer declarations
|
|
$sline =~ /^\+\s+$Declare\s*\(\s*\*\s*$Ident\s*\)\s*[=,;:\[\(]/ ||
|
|
# foo bar; where foo is some local typedef or #define
|
|
$sline =~ /^\+\s+$Ident(?:\s+|\s*\*\s*)$Ident\s*[=,;\[]/ ||
|
|
# known declaration macros
|
|
$sline =~ /^\+\s+$declaration_macros/ ||
|
|
# start of struct or union or enum
|
|
$sline =~ /^\+\s+(?:static\s+)?(?:const\s+)?(?:union|struct|enum|typedef)\b/ ||
|
|
# start or end of block or continuation of declaration
|
|
$sline =~ /^\+\s+(?:$|[\{\}\.\#\"\?\:\(\[])/ ||
|
|
# bitfield continuation
|
|
$sline =~ /^\+\s+$Ident\s*:\s*\d+\s*[,;]/ ||
|
|
# other possible extensions of declaration lines
|
|
$sline =~ /^\+\s+\(?\s*(?:$Compare|$Assignment|$Operators)/) &&
|
|
# indentation of previous and current line are the same
|
|
(($prevline =~ /\+(\s+)\S/) && $sline =~ /^\+$1\S/)) {
|
|
if (WARN("LINE_SPACING",
|
|
"Missing a blank line after declarations\n" . $hereprev) &&
|
|
$fix) {
|
|
fix_insert_line($fixlinenr, "\+");
|
|
}
|
|
}
|
|
|
|
# check for spaces at the beginning of a line.
|
|
# Exceptions:
|
|
# 1) within comments
|
|
# 2) indented preprocessor commands
|
|
# 3) hanging labels
|
|
if ($rawline =~ /^\+ / && $line !~ /^\+ *(?:$;|#|$Ident:)/) {
|
|
my $herevet = "$here\n" . cat_vet($rawline) . "\n";
|
|
if (WARN("LEADING_SPACE",
|
|
"please, no spaces at the start of a line\n" . $herevet) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =~ s/^\+([ \t]+)/"\+" . tabify($1)/e;
|
|
}
|
|
}
|
|
|
|
# check we are in a valid C source file if not then ignore this hunk
|
|
next if ($realfile !~ /\.(h|c)$/);
|
|
|
|
# check for unusual line ending [ or (
|
|
if ($line =~ /^\+.*([\[\(])\s*$/) {
|
|
CHK("OPEN_ENDED_LINE",
|
|
"Lines should not end with a '$1'\n" . $herecurr);
|
|
}
|
|
|
|
# check if this appears to be the start function declaration, save the name
|
|
if ($sline =~ /^\+\{\s*$/ &&
|
|
$prevline =~ /^\+(?:(?:(?:$Storage|$Inline)\s*)*\s*$Type\s*)?($Ident)\(/) {
|
|
$context_function = $1;
|
|
}
|
|
|
|
# check if this appears to be the end of function declaration
|
|
if ($sline =~ /^\+\}\s*$/) {
|
|
undef $context_function;
|
|
}
|
|
|
|
# check indentation of any line with a bare else
|
|
# (but not if it is a multiple line "if (foo) return bar; else return baz;")
|
|
# if the previous line is a break or return and is indented 1 tab more...
|
|
if ($sline =~ /^\+([\t]+)(?:}[ \t]*)?else(?:[ \t]*{)?\s*$/) {
|
|
my $tabs = length($1) + 1;
|
|
if ($prevline =~ /^\+\t{$tabs,$tabs}break\b/ ||
|
|
($prevline =~ /^\+\t{$tabs,$tabs}return\b/ &&
|
|
defined $lines[$linenr] &&
|
|
$lines[$linenr] !~ /^[ \+]\t{$tabs,$tabs}return/)) {
|
|
WARN("UNNECESSARY_ELSE",
|
|
"else is not generally useful after a break or return\n" . $hereprev);
|
|
}
|
|
}
|
|
|
|
# check indentation of a line with a break;
|
|
# if the previous line is a goto or return and is indented the same # of tabs
|
|
if ($sline =~ /^\+([\t]+)break\s*;\s*$/) {
|
|
my $tabs = $1;
|
|
if ($prevline =~ /^\+$tabs(?:goto|return)\b/) {
|
|
WARN("UNNECESSARY_BREAK",
|
|
"break is not useful after a goto or return\n" . $hereprev);
|
|
}
|
|
}
|
|
|
|
# check for RCS/CVS revision markers
|
|
if ($rawline =~ /^\+.*\$(Revision|Log|Id)(?:\$|)/) {
|
|
WARN("CVS_KEYWORD",
|
|
"CVS style keyword markers, these will _not_ be updated\n". $herecurr);
|
|
}
|
|
|
|
# check for old HOTPLUG __dev<foo> section markings
|
|
if ($line =~ /\b(__dev(init|exit)(data|const|))\b/) {
|
|
WARN("HOTPLUG_SECTION",
|
|
"Using $1 is unnecessary\n" . $herecurr);
|
|
}
|
|
|
|
# Check for potential 'bare' types
|
|
my ($stat, $cond, $line_nr_next, $remain_next, $off_next,
|
|
$realline_next);
|
|
#print "LINE<$line>\n";
|
|
if ($linenr > $suppress_statement &&
|
|
$realcnt && $sline =~ /.\s*\S/) {
|
|
($stat, $cond, $line_nr_next, $remain_next, $off_next) =
|
|
ctx_statement_block($linenr, $realcnt, 0);
|
|
$stat =~ s/\n./\n /g;
|
|
$cond =~ s/\n./\n /g;
|
|
|
|
#print "linenr<$linenr> <$stat>\n";
|
|
# If this statement has no statement boundaries within
|
|
# it there is no point in retrying a statement scan
|
|
# until we hit end of it.
|
|
my $frag = $stat; $frag =~ s/;+\s*$//;
|
|
if ($frag !~ /(?:{|;)/) {
|
|
#print "skip<$line_nr_next>\n";
|
|
$suppress_statement = $line_nr_next;
|
|
}
|
|
|
|
# Find the real next line.
|
|
$realline_next = $line_nr_next;
|
|
if (defined $realline_next &&
|
|
(!defined $lines[$realline_next - 1] ||
|
|
substr($lines[$realline_next - 1], $off_next) =~ /^\s*$/)) {
|
|
$realline_next++;
|
|
}
|
|
|
|
my $s = $stat;
|
|
$s =~ s/{.*$//s;
|
|
|
|
# Ignore goto labels.
|
|
if ($s =~ /$Ident:\*$/s) {
|
|
|
|
# Ignore functions being called
|
|
} elsif ($s =~ /^.\s*$Ident\s*\(/s) {
|
|
|
|
} elsif ($s =~ /^.\s*else\b/s) {
|
|
|
|
# declarations always start with types
|
|
} elsif ($prev_values eq 'E' && $s =~ /^.\s*(?:$Storage\s+)?(?:$Inline\s+)?(?:const\s+)?((?:\s*$Ident)+?)\b(?:\s+$Sparse)?\s*\**\s*(?:$Ident|\(\*[^\)]*\))(?:\s*$Modifier)?\s*(?:;|=|,|\()/s) {
|
|
my $type = $1;
|
|
$type =~ s/\s+/ /g;
|
|
possible($type, "A:" . $s);
|
|
|
|
# definitions in global scope can only start with types
|
|
} elsif ($s =~ /^.(?:$Storage\s+)?(?:$Inline\s+)?(?:const\s+)?($Ident)\b\s*(?!:)/s) {
|
|
possible($1, "B:" . $s);
|
|
}
|
|
|
|
# any (foo ... *) is a pointer cast, and foo is a type
|
|
while ($s =~ /\(($Ident)(?:\s+$Sparse)*[\s\*]+\s*\)/sg) {
|
|
possible($1, "C:" . $s);
|
|
}
|
|
|
|
# Check for any sort of function declaration.
|
|
# int foo(something bar, other baz);
|
|
# void (*store_gdt)(x86_descr_ptr *);
|
|
if ($prev_values eq 'E' && $s =~ /^(.(?:typedef\s*)?(?:(?:$Storage|$Inline)\s*)*\s*$Type\s*(?:\b$Ident|\(\*\s*$Ident\))\s*)\(/s) {
|
|
my ($name_len) = length($1);
|
|
|
|
my $ctx = $s;
|
|
substr($ctx, 0, $name_len + 1, '');
|
|
$ctx =~ s/\)[^\)]*$//;
|
|
|
|
for my $arg (split(/\s*,\s*/, $ctx)) {
|
|
if ($arg =~ /^(?:const\s+)?($Ident)(?:\s+$Sparse)*\s*\**\s*(:?\b$Ident)?$/s || $arg =~ /^($Ident)$/s) {
|
|
|
|
possible($1, "D:" . $s);
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
#
|
|
# Checks which may be anchored in the context.
|
|
#
|
|
|
|
# Check for switch () and associated case and default
|
|
# statements should be at the same indent.
|
|
if ($line=~/\bswitch\s*\(.*\)/) {
|
|
my $err = '';
|
|
my $sep = '';
|
|
my @ctx = ctx_block_outer($linenr, $realcnt);
|
|
shift(@ctx);
|
|
for my $ctx (@ctx) {
|
|
my ($clen, $cindent) = line_stats($ctx);
|
|
if ($ctx =~ /^\+\s*(case\s+|default:)/ &&
|
|
$indent != $cindent) {
|
|
$err .= "$sep$ctx\n";
|
|
$sep = '';
|
|
} else {
|
|
$sep = "[...]\n";
|
|
}
|
|
}
|
|
if ($err ne '') {
|
|
ERROR("SWITCH_CASE_INDENT_LEVEL",
|
|
"switch and case should be at the same indent\n$hereline$err");
|
|
}
|
|
}
|
|
|
|
# if/while/etc brace do not go on next line, unless defining a do while loop,
|
|
# or if that brace on the next line is for something else
|
|
if ($line =~ /(.*)\b((?:if|while|for|switch|(?:[a-z_]+|)for_each[a-z_]+)\s*\(|do\b|else\b)/ && $line !~ /^.\s*\#/) {
|
|
my $pre_ctx = "$1$2";
|
|
|
|
my ($level, @ctx) = ctx_statement_level($linenr, $realcnt, 0);
|
|
|
|
if ($line =~ /^\+\t{6,}/) {
|
|
WARN("DEEP_INDENTATION",
|
|
"Too many leading tabs - consider code refactoring\n" . $herecurr);
|
|
}
|
|
|
|
my $ctx_cnt = $realcnt - $#ctx - 1;
|
|
my $ctx = join("\n", @ctx);
|
|
|
|
my $ctx_ln = $linenr;
|
|
my $ctx_skip = $realcnt;
|
|
|
|
while ($ctx_skip > $ctx_cnt || ($ctx_skip == $ctx_cnt &&
|
|
defined $lines[$ctx_ln - 1] &&
|
|
$lines[$ctx_ln - 1] =~ /^-/)) {
|
|
##print "SKIP<$ctx_skip> CNT<$ctx_cnt>\n";
|
|
$ctx_skip-- if (!defined $lines[$ctx_ln - 1] || $lines[$ctx_ln - 1] !~ /^-/);
|
|
$ctx_ln++;
|
|
}
|
|
|
|
#print "realcnt<$realcnt> ctx_cnt<$ctx_cnt>\n";
|
|
#print "pre<$pre_ctx>\nline<$line>\nctx<$ctx>\nnext<$lines[$ctx_ln - 1]>\n";
|
|
|
|
if ($ctx !~ /{\s*/ && defined($lines[$ctx_ln - 1]) && $lines[$ctx_ln - 1] =~ /^\+\s*{/) {
|
|
ERROR("OPEN_BRACE",
|
|
"that open brace { should be on the previous line\n" .
|
|
"$here\n$ctx\n$rawlines[$ctx_ln - 1]\n");
|
|
}
|
|
if ($level == 0 && $pre_ctx !~ /}\s*while\s*\($/ &&
|
|
$ctx =~ /\)\s*\;\s*$/ &&
|
|
defined $lines[$ctx_ln - 1])
|
|
{
|
|
my ($nlength, $nindent) = line_stats($lines[$ctx_ln - 1]);
|
|
if ($nindent > $indent) {
|
|
WARN("TRAILING_SEMICOLON",
|
|
"trailing semicolon indicates no statements, indent implies otherwise\n" .
|
|
"$here\n$ctx\n$rawlines[$ctx_ln - 1]\n");
|
|
}
|
|
}
|
|
}
|
|
|
|
# Check relative indent for conditionals and blocks.
|
|
if ($line =~ /\b(?:(?:if|while|for|(?:[a-z_]+|)for_each[a-z_]+)\s*\(|(?:do|else)\b)/ && $line !~ /^.\s*#/ && $line !~ /\}\s*while\s*/) {
|
|
($stat, $cond, $line_nr_next, $remain_next, $off_next) =
|
|
ctx_statement_block($linenr, $realcnt, 0)
|
|
if (!defined $stat);
|
|
my ($s, $c) = ($stat, $cond);
|
|
|
|
substr($s, 0, length($c), '');
|
|
|
|
# remove inline comments
|
|
$s =~ s/$;/ /g;
|
|
$c =~ s/$;/ /g;
|
|
|
|
# Find out how long the conditional actually is.
|
|
my @newlines = ($c =~ /\n/gs);
|
|
my $cond_lines = 1 + $#newlines;
|
|
|
|
# Make sure we remove the line prefixes as we have
|
|
# none on the first line, and are going to readd them
|
|
# where necessary.
|
|
$s =~ s/\n./\n/gs;
|
|
while ($s =~ /\n\s+\\\n/) {
|
|
$cond_lines += $s =~ s/\n\s+\\\n/\n/g;
|
|
}
|
|
|
|
# We want to check the first line inside the block
|
|
# starting at the end of the conditional, so remove:
|
|
# 1) any blank line termination
|
|
# 2) any opening brace { on end of the line
|
|
# 3) any do (...) {
|
|
my $continuation = 0;
|
|
my $check = 0;
|
|
$s =~ s/^.*\bdo\b//;
|
|
$s =~ s/^\s*{//;
|
|
if ($s =~ s/^\s*\\//) {
|
|
$continuation = 1;
|
|
}
|
|
if ($s =~ s/^\s*?\n//) {
|
|
$check = 1;
|
|
$cond_lines++;
|
|
}
|
|
|
|
# Also ignore a loop construct at the end of a
|
|
# preprocessor statement.
|
|
if (($prevline =~ /^.\s*#\s*define\s/ ||
|
|
$prevline =~ /\\\s*$/) && $continuation == 0) {
|
|
$check = 0;
|
|
}
|
|
|
|
my $cond_ptr = -1;
|
|
$continuation = 0;
|
|
while ($cond_ptr != $cond_lines) {
|
|
$cond_ptr = $cond_lines;
|
|
|
|
# If we see an #else/#elif then the code
|
|
# is not linear.
|
|
if ($s =~ /^\s*\#\s*(?:else|elif)/) {
|
|
$check = 0;
|
|
}
|
|
|
|
# Ignore:
|
|
# 1) blank lines, they should be at 0,
|
|
# 2) preprocessor lines, and
|
|
# 3) labels.
|
|
if ($continuation ||
|
|
$s =~ /^\s*?\n/ ||
|
|
$s =~ /^\s*#\s*?/ ||
|
|
$s =~ /^\s*$Ident\s*:/) {
|
|
$continuation = ($s =~ /^.*?\\\n/) ? 1 : 0;
|
|
if ($s =~ s/^.*?\n//) {
|
|
$cond_lines++;
|
|
}
|
|
}
|
|
}
|
|
|
|
my (undef, $sindent) = line_stats("+" . $s);
|
|
my $stat_real = raw_line($linenr, $cond_lines);
|
|
|
|
# Check if either of these lines are modified, else
|
|
# this is not this patch's fault.
|
|
if (!defined($stat_real) ||
|
|
$stat !~ /^\+/ && $stat_real !~ /^\+/) {
|
|
$check = 0;
|
|
}
|
|
if (defined($stat_real) && $cond_lines > 1) {
|
|
$stat_real = "[...]\n$stat_real";
|
|
}
|
|
|
|
#print "line<$line> prevline<$prevline> indent<$indent> sindent<$sindent> check<$check> continuation<$continuation> s<$s> cond_lines<$cond_lines> stat_real<$stat_real> stat<$stat>\n";
|
|
|
|
if ($check && $s ne '' &&
|
|
(($sindent % 8) != 0 ||
|
|
($sindent < $indent) ||
|
|
($sindent == $indent &&
|
|
($s !~ /^\s*(?:\}|\{|else\b)/)) ||
|
|
($sindent > $indent + 8))) {
|
|
WARN("SUSPECT_CODE_INDENT",
|
|
"suspect code indent for conditional statements ($indent, $sindent)\n" . $herecurr . "$stat_real\n");
|
|
}
|
|
}
|
|
|
|
# Track the 'values' across context and added lines.
|
|
my $opline = $line; $opline =~ s/^./ /;
|
|
my ($curr_values, $curr_vars) =
|
|
annotate_values($opline . "\n", $prev_values);
|
|
$curr_values = $prev_values . $curr_values;
|
|
if ($dbg_values) {
|
|
my $outline = $opline; $outline =~ s/\t/ /g;
|
|
print "$linenr > .$outline\n";
|
|
print "$linenr > $curr_values\n";
|
|
print "$linenr > $curr_vars\n";
|
|
}
|
|
$prev_values = substr($curr_values, -1);
|
|
|
|
#ignore lines not being added
|
|
next if ($line =~ /^[^\+]/);
|
|
|
|
# check for dereferences that span multiple lines
|
|
if ($prevline =~ /^\+.*$Lval\s*(?:\.|->)\s*$/ &&
|
|
$line =~ /^\+\s*(?!\#\s*(?!define\s+|if))\s*$Lval/) {
|
|
$prevline =~ /($Lval\s*(?:\.|->))\s*$/;
|
|
my $ref = $1;
|
|
$line =~ /^.\s*($Lval)/;
|
|
$ref .= $1;
|
|
$ref =~ s/\s//g;
|
|
WARN("MULTILINE_DEREFERENCE",
|
|
"Avoid multiple line dereference - prefer '$ref'\n" . $hereprev);
|
|
}
|
|
|
|
# check for declarations of signed or unsigned without int
|
|
while ($line =~ m{\b($Declare)\s*(?!char\b|short\b|int\b|long\b)\s*($Ident)?\s*[=,;\[\)\(]}g) {
|
|
my $type = $1;
|
|
my $var = $2;
|
|
$var = "" if (!defined $var);
|
|
if ($type =~ /^(?:(?:$Storage|$Inline|$Attribute)\s+)*((?:un)?signed)((?:\s*\*)*)\s*$/) {
|
|
my $sign = $1;
|
|
my $pointer = $2;
|
|
|
|
$pointer = "" if (!defined $pointer);
|
|
|
|
if (WARN("UNSPECIFIED_INT",
|
|
"Prefer '" . trim($sign) . " int" . rtrim($pointer) . "' to bare use of '$sign" . rtrim($pointer) . "'\n" . $herecurr) &&
|
|
$fix) {
|
|
my $decl = trim($sign) . " int ";
|
|
my $comp_pointer = $pointer;
|
|
$comp_pointer =~ s/\s//g;
|
|
$decl .= $comp_pointer;
|
|
$decl = rtrim($decl) if ($var eq "");
|
|
$fixed[$fixlinenr] =~ s@\b$sign\s*\Q$pointer\E\s*$var\b@$decl$var@;
|
|
}
|
|
}
|
|
}
|
|
|
|
# TEST: allow direct testing of the type matcher.
|
|
if ($dbg_type) {
|
|
if ($line =~ /^.\s*$Declare\s*$/) {
|
|
ERROR("TEST_TYPE",
|
|
"TEST: is type\n" . $herecurr);
|
|
} elsif ($dbg_type > 1 && $line =~ /^.+($Declare)/) {
|
|
ERROR("TEST_NOT_TYPE",
|
|
"TEST: is not type ($1 is)\n". $herecurr);
|
|
}
|
|
next;
|
|
}
|
|
# TEST: allow direct testing of the attribute matcher.
|
|
if ($dbg_attr) {
|
|
if ($line =~ /^.\s*$Modifier\s*$/) {
|
|
ERROR("TEST_ATTR",
|
|
"TEST: is attr\n" . $herecurr);
|
|
} elsif ($dbg_attr > 1 && $line =~ /^.+($Modifier)/) {
|
|
ERROR("TEST_NOT_ATTR",
|
|
"TEST: is not attr ($1 is)\n". $herecurr);
|
|
}
|
|
next;
|
|
}
|
|
|
|
# check for initialisation to aggregates open brace on the next line
|
|
if ($line =~ /^.\s*{/ &&
|
|
$prevline =~ /(?:^|[^=])=\s*$/) {
|
|
if (ERROR("OPEN_BRACE",
|
|
"that open brace { should be on the previous line\n" . $hereprev) &&
|
|
$fix && $prevline =~ /^\+/ && $line =~ /^\+/) {
|
|
fix_delete_line($fixlinenr - 1, $prevrawline);
|
|
fix_delete_line($fixlinenr, $rawline);
|
|
my $fixedline = $prevrawline;
|
|
$fixedline =~ s/\s*=\s*$/ = {/;
|
|
fix_insert_line($fixlinenr, $fixedline);
|
|
$fixedline = $line;
|
|
$fixedline =~ s/^(.\s*)\{\s*/$1/;
|
|
fix_insert_line($fixlinenr, $fixedline);
|
|
}
|
|
}
|
|
|
|
#
|
|
# Checks which are anchored on the added line.
|
|
#
|
|
|
|
# check for malformed paths in #include statements (uses RAW line)
|
|
if ($rawline =~ m{^.\s*\#\s*include\s+[<"](.*)[">]}) {
|
|
my $path = $1;
|
|
if ($path =~ m{//}) {
|
|
ERROR("MALFORMED_INCLUDE",
|
|
"malformed #include filename\n" . $herecurr);
|
|
}
|
|
if ($path =~ "^uapi/" && $realfile =~ m@\binclude/uapi/@) {
|
|
ERROR("UAPI_INCLUDE",
|
|
"No #include in ...include/uapi/... should use a uapi/ path prefix\n" . $herecurr);
|
|
}
|
|
}
|
|
|
|
# no C99 // comments
|
|
if ($line =~ m{//}) {
|
|
if (ERROR("C99_COMMENTS",
|
|
"do not use C99 // comments\n" . $herecurr) &&
|
|
$fix) {
|
|
my $line = $fixed[$fixlinenr];
|
|
if ($line =~ /\/\/(.*)$/) {
|
|
my $comment = trim($1);
|
|
$fixed[$fixlinenr] =~ s@\/\/(.*)$@/\* $comment \*/@;
|
|
}
|
|
}
|
|
}
|
|
# Remove C99 comments.
|
|
$line =~ s@//.*@@;
|
|
$opline =~ s@//.*@@;
|
|
|
|
# EXPORT_SYMBOL should immediately follow the thing it is exporting, consider
|
|
# the whole statement.
|
|
#print "APW <$lines[$realline_next - 1]>\n";
|
|
if (defined $realline_next &&
|
|
exists $lines[$realline_next - 1] &&
|
|
!defined $suppress_export{$realline_next} &&
|
|
($lines[$realline_next - 1] =~ /EXPORT_SYMBOL.*\((.*)\)/ ||
|
|
$lines[$realline_next - 1] =~ /EXPORT_UNUSED_SYMBOL.*\((.*)\)/)) {
|
|
# Handle definitions which produce identifiers with
|
|
# a prefix:
|
|
# XXX(foo);
|
|
# EXPORT_SYMBOL(something_foo);
|
|
my $name = $1;
|
|
if ($stat =~ /^(?:.\s*}\s*\n)?.([A-Z_]+)\s*\(\s*($Ident)/ &&
|
|
$name =~ /^${Ident}_$2/) {
|
|
#print "FOO C name<$name>\n";
|
|
$suppress_export{$realline_next} = 1;
|
|
|
|
} elsif ($stat !~ /(?:
|
|
\n.}\s*$|
|
|
^.DEFINE_$Ident\(\Q$name\E\)|
|
|
^.DECLARE_$Ident\(\Q$name\E\)|
|
|
^.LIST_HEAD\(\Q$name\E\)|
|
|
^.(?:$Storage\s+)?$Type\s*\(\s*\*\s*\Q$name\E\s*\)\s*\(|
|
|
\b\Q$name\E(?:\s+$Attribute)*\s*(?:;|=|\[|\()
|
|
)/x) {
|
|
#print "FOO A<$lines[$realline_next - 1]> stat<$stat> name<$name>\n";
|
|
$suppress_export{$realline_next} = 2;
|
|
} else {
|
|
$suppress_export{$realline_next} = 1;
|
|
}
|
|
}
|
|
if (!defined $suppress_export{$linenr} &&
|
|
$prevline =~ /^.\s*$/ &&
|
|
($line =~ /EXPORT_SYMBOL.*\((.*)\)/ ||
|
|
$line =~ /EXPORT_UNUSED_SYMBOL.*\((.*)\)/)) {
|
|
#print "FOO B <$lines[$linenr - 1]>\n";
|
|
$suppress_export{$linenr} = 2;
|
|
}
|
|
if (defined $suppress_export{$linenr} &&
|
|
$suppress_export{$linenr} == 2) {
|
|
WARN("EXPORT_SYMBOL",
|
|
"EXPORT_SYMBOL(foo); should immediately follow its function/variable\n" . $herecurr);
|
|
}
|
|
|
|
# check for global initialisers.
|
|
if ($line =~ /^\+$Type\s*$Ident(?:\s+$Modifier)*\s*=\s*($zero_initializer)\s*;/) {
|
|
if (ERROR("GLOBAL_INITIALISERS",
|
|
"do not initialise globals to $1\n" . $herecurr) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =~ s/(^.$Type\s*$Ident(?:\s+$Modifier)*)\s*=\s*$zero_initializer\s*;/$1;/;
|
|
}
|
|
}
|
|
# check for static initialisers.
|
|
if ($line =~ /^\+.*\bstatic\s.*=\s*($zero_initializer)\s*;/) {
|
|
if (ERROR("INITIALISED_STATIC",
|
|
"do not initialise statics to $1\n" .
|
|
$herecurr) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =~ s/(\bstatic\s.*?)\s*=\s*$zero_initializer\s*;/$1;/;
|
|
}
|
|
}
|
|
|
|
# check for misordered declarations of char/short/int/long with signed/unsigned
|
|
while ($sline =~ m{(\b$TypeMisordered\b)}g) {
|
|
my $tmp = trim($1);
|
|
WARN("MISORDERED_TYPE",
|
|
"type '$tmp' should be specified in [[un]signed] [short|int|long|long long] order\n" . $herecurr);
|
|
}
|
|
|
|
# check for unnecessary <signed> int declarations of short/long/long long
|
|
while ($sline =~ m{\b($TypeMisordered(\s*\*)*|$C90_int_types)\b}g) {
|
|
my $type = trim($1);
|
|
next if ($type !~ /\bint\b/);
|
|
next if ($type !~ /\b(?:short|long\s+long|long)\b/);
|
|
my $new_type = $type;
|
|
$new_type =~ s/\b\s*int\s*\b/ /;
|
|
$new_type =~ s/\b\s*(?:un)?signed\b\s*/ /;
|
|
$new_type =~ s/^const\s+//;
|
|
$new_type = "unsigned $new_type" if ($type =~ /\bunsigned\b/);
|
|
$new_type = "const $new_type" if ($type =~ /^const\b/);
|
|
$new_type =~ s/\s+/ /g;
|
|
$new_type = trim($new_type);
|
|
if (WARN("UNNECESSARY_INT",
|
|
"Prefer '$new_type' over '$type' as the int is unnecessary\n" . $herecurr) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =~ s/\b\Q$type\E\b/$new_type/;
|
|
}
|
|
}
|
|
|
|
# check for static const char * arrays.
|
|
if ($line =~ /\bstatic\s+const\s+char\s*\*\s*(\w+)\s*\[\s*\]\s*=\s*/) {
|
|
WARN("STATIC_CONST_CHAR_ARRAY",
|
|
"static const char * array should probably be static const char * const\n" .
|
|
$herecurr);
|
|
}
|
|
|
|
# check for static char foo[] = "bar" declarations.
|
|
if ($line =~ /\bstatic\s+char\s+(\w+)\s*\[\s*\]\s*=\s*"/) {
|
|
WARN("STATIC_CONST_CHAR_ARRAY",
|
|
"static char array declaration should probably be static const char\n" .
|
|
$herecurr);
|
|
}
|
|
|
|
# check for const <foo> const where <foo> is not a pointer or array type
|
|
if ($sline =~ /\bconst\s+($BasicType)\s+const\b/) {
|
|
my $found = $1;
|
|
if ($sline =~ /\bconst\s+\Q$found\E\s+const\b\s*\*/) {
|
|
WARN("CONST_CONST",
|
|
"'const $found const *' should probably be 'const $found * const'\n" . $herecurr);
|
|
} elsif ($sline !~ /\bconst\s+\Q$found\E\s+const\s+\w+\s*\[/) {
|
|
WARN("CONST_CONST",
|
|
"'const $found const' should probably be 'const $found'\n" . $herecurr);
|
|
}
|
|
}
|
|
|
|
# check for non-global char *foo[] = {"bar", ...} declarations.
|
|
if ($line =~ /^.\s+(?:static\s+|const\s+)?char\s+\*\s*\w+\s*\[\s*\]\s*=\s*\{/) {
|
|
WARN("STATIC_CONST_CHAR_ARRAY",
|
|
"char * array declaration might be better as static const\n" .
|
|
$herecurr);
|
|
}
|
|
|
|
# check for sizeof(foo)/sizeof(foo[0]) that could be ARRAY_SIZE(foo)
|
|
if ($line =~ m@\bsizeof\s*\(\s*($Lval)\s*\)@) {
|
|
my $array = $1;
|
|
if ($line =~ m@\b(sizeof\s*\(\s*\Q$array\E\s*\)\s*/\s*sizeof\s*\(\s*\Q$array\E\s*\[\s*0\s*\]\s*\))@) {
|
|
my $array_div = $1;
|
|
if (WARN("ARRAY_SIZE",
|
|
"Prefer ARRAY_SIZE($array)\n" . $herecurr) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =~ s/\Q$array_div\E/ARRAY_SIZE($array)/;
|
|
}
|
|
}
|
|
}
|
|
|
|
# check for function declarations without arguments like "int foo()"
|
|
if ($line =~ /(\b$Type\s+$Ident)\s*\(\s*\)/) {
|
|
if (ERROR("FUNCTION_WITHOUT_ARGS",
|
|
"Bad function definition - $1() should probably be $1(void)\n" . $herecurr) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =~ s/(\b($Type)\s+($Ident))\s*\(\s*\)/$2 $3(void)/;
|
|
}
|
|
}
|
|
|
|
# check for new typedefs, only function parameters and sparse annotations
|
|
# make sense.
|
|
if ($line =~ /\btypedef\s/ &&
|
|
$line !~ /\btypedef\s+$Type\s*\(\s*\*?$Ident\s*\)\s*\(/ &&
|
|
$line !~ /\btypedef\s+$Type\s+$Ident\s*\(/ &&
|
|
$line !~ /\b$typeTypedefs\b/ &&
|
|
$line !~ /\b__bitwise\b/) {
|
|
WARN("NEW_TYPEDEFS",
|
|
"do not add new typedefs\n" . $herecurr);
|
|
}
|
|
|
|
# * goes on variable not on type
|
|
# (char*[ const])
|
|
while ($line =~ m{(\($NonptrType(\s*(?:$Modifier\b\s*|\*\s*)+)\))}g) {
|
|
#print "AA<$1>\n";
|
|
my ($ident, $from, $to) = ($1, $2, $2);
|
|
|
|
# Should start with a space.
|
|
$to =~ s/^(\S)/ $1/;
|
|
# Should not end with a space.
|
|
$to =~ s/\s+$//;
|
|
# '*'s should not have spaces between.
|
|
while ($to =~ s/\*\s+\*/\*\*/) {
|
|
}
|
|
|
|
## print "1: from<$from> to<$to> ident<$ident>\n";
|
|
if ($from ne $to) {
|
|
if (ERROR("POINTER_LOCATION",
|
|
"\"(foo$from)\" should be \"(foo$to)\"\n" . $herecurr) &&
|
|
$fix) {
|
|
my $sub_from = $ident;
|
|
my $sub_to = $ident;
|
|
$sub_to =~ s/\Q$from\E/$to/;
|
|
$fixed[$fixlinenr] =~
|
|
s@\Q$sub_from\E@$sub_to@;
|
|
}
|
|
}
|
|
}
|
|
while ($line =~ m{(\b$NonptrType(\s*(?:$Modifier\b\s*|\*\s*)+)($Ident))}g) {
|
|
#print "BB<$1>\n";
|
|
my ($match, $from, $to, $ident) = ($1, $2, $2, $3);
|
|
|
|
# Should start with a space.
|
|
$to =~ s/^(\S)/ $1/;
|
|
# Should not end with a space.
|
|
$to =~ s/\s+$//;
|
|
# '*'s should not have spaces between.
|
|
while ($to =~ s/\*\s+\*/\*\*/) {
|
|
}
|
|
# Modifiers should have spaces.
|
|
$to =~ s/(\b$Modifier$)/$1 /;
|
|
|
|
## print "2: from<$from> to<$to> ident<$ident>\n";
|
|
if ($from ne $to && $ident !~ /^$Modifier$/) {
|
|
if (ERROR("POINTER_LOCATION",
|
|
"\"foo${from}bar\" should be \"foo${to}bar\"\n" . $herecurr) &&
|
|
$fix) {
|
|
|
|
my $sub_from = $match;
|
|
my $sub_to = $match;
|
|
$sub_to =~ s/\Q$from\E/$to/;
|
|
$fixed[$fixlinenr] =~
|
|
s@\Q$sub_from\E@$sub_to@;
|
|
}
|
|
}
|
|
}
|
|
|
|
# avoid BUG() or BUG_ON()
|
|
if ($line =~ /\b(?:BUG|BUG_ON)\b/) {
|
|
my $msg_level = \&WARN;
|
|
$msg_level = \&CHK if ($file);
|
|
&{$msg_level}("AVOID_BUG",
|
|
"Avoid crashing the kernel - try using WARN_ON & recovery code rather than BUG() or BUG_ON()\n" . $herecurr);
|
|
}
|
|
|
|
# avoid LINUX_VERSION_CODE
|
|
if ($line =~ /\bLINUX_VERSION_CODE\b/) {
|
|
WARN("LINUX_VERSION_CODE",
|
|
"LINUX_VERSION_CODE should be avoided, code should be for the version to which it is merged\n" . $herecurr);
|
|
}
|
|
|
|
# check for uses of printk_ratelimit
|
|
if ($line =~ /\bprintk_ratelimit\s*\(/) {
|
|
WARN("PRINTK_RATELIMITED",
|
|
"Prefer printk_ratelimited or pr_<level>_ratelimited to printk_ratelimit\n" . $herecurr);
|
|
}
|
|
|
|
# printk should use KERN_* levels
|
|
if ($line =~ /\bprintk\s*\(\s*(?!KERN_[A-Z]+\b)/) {
|
|
WARN("PRINTK_WITHOUT_KERN_LEVEL",
|
|
"printk() should include KERN_<LEVEL> facility level\n" . $herecurr);
|
|
}
|
|
|
|
if ($line =~ /\bprintk\s*\(\s*KERN_([A-Z]+)/) {
|
|
my $orig = $1;
|
|
my $level = lc($orig);
|
|
$level = "warn" if ($level eq "warning");
|
|
my $level2 = $level;
|
|
$level2 = "dbg" if ($level eq "debug");
|
|
WARN("PREFER_PR_LEVEL",
|
|
"Prefer [subsystem eg: netdev]_$level2([subsystem]dev, ... then dev_$level2(dev, ... then pr_$level(... to printk(KERN_$orig ...\n" . $herecurr);
|
|
}
|
|
|
|
if ($line =~ /\bpr_warning\s*\(/) {
|
|
if (WARN("PREFER_PR_LEVEL",
|
|
"Prefer pr_warn(... to pr_warning(...\n" . $herecurr) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =~
|
|
s/\bpr_warning\b/pr_warn/;
|
|
}
|
|
}
|
|
|
|
if ($line =~ /\bdev_printk\s*\(\s*KERN_([A-Z]+)/) {
|
|
my $orig = $1;
|
|
my $level = lc($orig);
|
|
$level = "warn" if ($level eq "warning");
|
|
$level = "dbg" if ($level eq "debug");
|
|
WARN("PREFER_DEV_LEVEL",
|
|
"Prefer dev_$level(... to dev_printk(KERN_$orig, ...\n" . $herecurr);
|
|
}
|
|
|
|
# ENOSYS means "bad syscall nr" and nothing else. This will have a small
|
|
# number of false positives, but assembly files are not checked, so at
|
|
# least the arch entry code will not trigger this warning.
|
|
if ($line =~ /\bENOSYS\b/) {
|
|
WARN("ENOSYS",
|
|
"ENOSYS means 'invalid syscall nr' and nothing else\n" . $herecurr);
|
|
}
|
|
|
|
# function brace can't be on same line, except for #defines of do while,
|
|
# or if closed on same line
|
|
if ($perl_version_ok &&
|
|
$sline =~ /$Type\s*$Ident\s*$balanced_parens\s*\{/ &&
|
|
$sline !~ /\#\s*define\b.*do\s*\{/ &&
|
|
$sline !~ /}/) {
|
|
if (ERROR("OPEN_BRACE",
|
|
"open brace '{' following function definitions go on the next line\n" . $herecurr) &&
|
|
$fix) {
|
|
fix_delete_line($fixlinenr, $rawline);
|
|
my $fixed_line = $rawline;
|
|
$fixed_line =~ /(^..*$Type\s*$Ident\(.*\)\s*)\{(.*)$/;
|
|
my $line1 = $1;
|
|
my $line2 = $2;
|
|
fix_insert_line($fixlinenr, ltrim($line1));
|
|
fix_insert_line($fixlinenr, "\+{");
|
|
if ($line2 !~ /^\s*$/) {
|
|
fix_insert_line($fixlinenr, "\+\t" . trim($line2));
|
|
}
|
|
}
|
|
}
|
|
|
|
# open braces for enum, union and struct go on the same line.
|
|
if ($line =~ /^.\s*{/ &&
|
|
$prevline =~ /^.\s*(?:typedef\s+)?(enum|union|struct)(?:\s+$Ident)?\s*$/) {
|
|
if (ERROR("OPEN_BRACE",
|
|
"open brace '{' following $1 go on the same line\n" . $hereprev) &&
|
|
$fix && $prevline =~ /^\+/ && $line =~ /^\+/) {
|
|
fix_delete_line($fixlinenr - 1, $prevrawline);
|
|
fix_delete_line($fixlinenr, $rawline);
|
|
my $fixedline = rtrim($prevrawline) . " {";
|
|
fix_insert_line($fixlinenr, $fixedline);
|
|
$fixedline = $rawline;
|
|
$fixedline =~ s/^(.\s*)\{\s*/$1\t/;
|
|
if ($fixedline !~ /^\+\s*$/) {
|
|
fix_insert_line($fixlinenr, $fixedline);
|
|
}
|
|
}
|
|
}
|
|
|
|
# missing space after union, struct or enum definition
|
|
if ($line =~ /^.\s*(?:typedef\s+)?(enum|union|struct)(?:\s+$Ident){1,2}[=\{]/) {
|
|
if (WARN("SPACING",
|
|
"missing space after $1 definition\n" . $herecurr) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =~
|
|
s/^(.\s*(?:typedef\s+)?(?:enum|union|struct)(?:\s+$Ident){1,2})([=\{])/$1 $2/;
|
|
}
|
|
}
|
|
|
|
# Function pointer declarations
|
|
# check spacing between type, funcptr, and args
|
|
# canonical declaration is "type (*funcptr)(args...)"
|
|
if ($line =~ /^.\s*($Declare)\((\s*)\*(\s*)($Ident)(\s*)\)(\s*)\(/) {
|
|
my $declare = $1;
|
|
my $pre_pointer_space = $2;
|
|
my $post_pointer_space = $3;
|
|
my $funcname = $4;
|
|
my $post_funcname_space = $5;
|
|
my $pre_args_space = $6;
|
|
|
|
# the $Declare variable will capture all spaces after the type
|
|
# so check it for a missing trailing missing space but pointer return types
|
|
# don't need a space so don't warn for those.
|
|
my $post_declare_space = "";
|
|
if ($declare =~ /(\s+)$/) {
|
|
$post_declare_space = $1;
|
|
$declare = rtrim($declare);
|
|
}
|
|
if ($declare !~ /\*$/ && $post_declare_space =~ /^$/) {
|
|
WARN("SPACING",
|
|
"missing space after return type\n" . $herecurr);
|
|
$post_declare_space = " ";
|
|
}
|
|
|
|
# unnecessary space "type (*funcptr)(args...)"
|
|
# This test is not currently implemented because these declarations are
|
|
# equivalent to
|
|
# int foo(int bar, ...)
|
|
# and this is form shouldn't/doesn't generate a checkpatch warning.
|
|
#
|
|
# elsif ($declare =~ /\s{2,}$/) {
|
|
# WARN("SPACING",
|
|
# "Multiple spaces after return type\n" . $herecurr);
|
|
# }
|
|
|
|
# unnecessary space "type ( *funcptr)(args...)"
|
|
if (defined $pre_pointer_space &&
|
|
$pre_pointer_space =~ /^\s/) {
|
|
WARN("SPACING",
|
|
"Unnecessary space after function pointer open parenthesis\n" . $herecurr);
|
|
}
|
|
|
|
# unnecessary space "type (* funcptr)(args...)"
|
|
if (defined $post_pointer_space &&
|
|
$post_pointer_space =~ /^\s/) {
|
|
WARN("SPACING",
|
|
"Unnecessary space before function pointer name\n" . $herecurr);
|
|
}
|
|
|
|
# unnecessary space "type (*funcptr )(args...)"
|
|
if (defined $post_funcname_space &&
|
|
$post_funcname_space =~ /^\s/) {
|
|
WARN("SPACING",
|
|
"Unnecessary space after function pointer name\n" . $herecurr);
|
|
}
|
|
|
|
# unnecessary space "type (*funcptr) (args...)"
|
|
if (defined $pre_args_space &&
|
|
$pre_args_space =~ /^\s/) {
|
|
WARN("SPACING",
|
|
"Unnecessary space before function pointer arguments\n" . $herecurr);
|
|
}
|
|
|
|
if (show_type("SPACING") && $fix) {
|
|
$fixed[$fixlinenr] =~
|
|
s/^(.\s*)$Declare\s*\(\s*\*\s*$Ident\s*\)\s*\(/$1 . $declare . $post_declare_space . '(*' . $funcname . ')('/ex;
|
|
}
|
|
}
|
|
|
|
# check for spacing round square brackets; allowed:
|
|
# 1. with a type on the left -- int [] a;
|
|
# 2. at the beginning of a line for slice initialisers -- [0...10] = 5,
|
|
# 3. inside a curly brace -- = { [0...10] = 5 }
|
|
while ($line =~ /(.*?\s)\[/g) {
|
|
my ($where, $prefix) = ($-[1], $1);
|
|
if ($prefix !~ /$Type\s+$/ &&
|
|
($where != 0 || $prefix !~ /^.\s+$/) &&
|
|
$prefix !~ /[{,:]\s+$/) {
|
|
if (ERROR("BRACKET_SPACE",
|
|
"space prohibited before open square bracket '['\n" . $herecurr) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =~
|
|
s/^(\+.*?)\s+\[/$1\[/;
|
|
}
|
|
}
|
|
}
|
|
|
|
# check for spaces between functions and their parentheses.
|
|
while ($line =~ /($Ident)\s+\(/g) {
|
|
my $name = $1;
|
|
my $ctx_before = substr($line, 0, $-[1]);
|
|
my $ctx = "$ctx_before$name";
|
|
|
|
# Ignore those directives where spaces _are_ permitted.
|
|
if ($name =~ /^(?:
|
|
if|for|while|switch|return|case|
|
|
volatile|__volatile__|
|
|
__attribute__|format|__extension__|
|
|
asm|__asm__)$/x)
|
|
{
|
|
# cpp #define statements have non-optional spaces, ie
|
|
# if there is a space between the name and the open
|
|
# parenthesis it is simply not a parameter group.
|
|
} elsif ($ctx_before =~ /^.\s*\#\s*define\s*$/) {
|
|
|
|
# cpp #elif statement condition may start with a (
|
|
} elsif ($ctx =~ /^.\s*\#\s*elif\s*$/) {
|
|
|
|
# If this whole things ends with a type its most
|
|
# likely a typedef for a function.
|
|
} elsif ($ctx =~ /$Type$/) {
|
|
|
|
} else {
|
|
if (WARN("SPACING",
|
|
"space prohibited between function name and open parenthesis '('\n" . $herecurr) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =~
|
|
s/\b$name\s+\(/$name\(/;
|
|
}
|
|
}
|
|
}
|
|
|
|
# Check operator spacing.
|
|
if (!($line=~/\#\s*include/)) {
|
|
my $fixed_line = "";
|
|
my $line_fixed = 0;
|
|
|
|
my $ops = qr{
|
|
<<=|>>=|<=|>=|==|!=|
|
|
\+=|-=|\*=|\/=|%=|\^=|\|=|&=|
|
|
=>|->|<<|>>|<|>|=|!|~|
|
|
&&|\|\||,|\^|\+\+|--|&|\||\+|-|\*|\/|%|
|
|
\?:|\?|:
|
|
}x;
|
|
my @elements = split(/($ops|;)/, $opline);
|
|
|
|
## print("element count: <" . $#elements . ">\n");
|
|
## foreach my $el (@elements) {
|
|
## print("el: <$el>\n");
|
|
## }
|
|
|
|
my @fix_elements = ();
|
|
my $off = 0;
|
|
|
|
foreach my $el (@elements) {
|
|
push(@fix_elements, substr($rawline, $off, length($el)));
|
|
$off += length($el);
|
|
}
|
|
|
|
$off = 0;
|
|
|
|
my $blank = copy_spacing($opline);
|
|
my $last_after = -1;
|
|
|
|
for (my $n = 0; $n < $#elements; $n += 2) {
|
|
|
|
my $good = $fix_elements[$n] . $fix_elements[$n + 1];
|
|
|
|
## print("n: <$n> good: <$good>\n");
|
|
|
|
$off += length($elements[$n]);
|
|
|
|
# Pick up the preceding and succeeding characters.
|
|
my $ca = substr($opline, 0, $off);
|
|
my $cc = '';
|
|
if (length($opline) >= ($off + length($elements[$n + 1]))) {
|
|
$cc = substr($opline, $off + length($elements[$n + 1]));
|
|
}
|
|
my $cb = "$ca$;$cc";
|
|
|
|
my $a = '';
|
|
$a = 'V' if ($elements[$n] ne '');
|
|
$a = 'W' if ($elements[$n] =~ /\s$/);
|
|
$a = 'C' if ($elements[$n] =~ /$;$/);
|
|
$a = 'B' if ($elements[$n] =~ /(\[|\()$/);
|
|
$a = 'O' if ($elements[$n] eq '');
|
|
$a = 'E' if ($ca =~ /^\s*$/);
|
|
|
|
my $op = $elements[$n + 1];
|
|
|
|
my $c = '';
|
|
if (defined $elements[$n + 2]) {
|
|
$c = 'V' if ($elements[$n + 2] ne '');
|
|
$c = 'W' if ($elements[$n + 2] =~ /^\s/);
|
|
$c = 'C' if ($elements[$n + 2] =~ /^$;/);
|
|
$c = 'B' if ($elements[$n + 2] =~ /^(\)|\]|;)/);
|
|
$c = 'O' if ($elements[$n + 2] eq '');
|
|
$c = 'E' if ($elements[$n + 2] =~ /^\s*\\$/);
|
|
} else {
|
|
$c = 'E';
|
|
}
|
|
|
|
my $ctx = "${a}x${c}";
|
|
|
|
my $at = "(ctx:$ctx)";
|
|
|
|
my $ptr = substr($blank, 0, $off) . "^";
|
|
my $hereptr = "$hereline$ptr\n";
|
|
|
|
# Pull out the value of this operator.
|
|
my $op_type = substr($curr_values, $off + 1, 1);
|
|
|
|
# Get the full operator variant.
|
|
my $opv = $op . substr($curr_vars, $off, 1);
|
|
|
|
# Ignore operators passed as parameters.
|
|
if ($op_type ne 'V' &&
|
|
$ca =~ /\s$/ && $cc =~ /^\s*[,\)]/) {
|
|
|
|
# # Ignore comments
|
|
# } elsif ($op =~ /^$;+$/) {
|
|
|
|
# ; should have either the end of line or a space or \ after it
|
|
} elsif ($op eq ';') {
|
|
if ($ctx !~ /.x[WEBC]/ &&
|
|
$cc !~ /^\\/ && $cc !~ /^;/) {
|
|
if (ERROR("SPACING",
|
|
"space required after that '$op' $at\n" . $hereptr)) {
|
|
$good = $fix_elements[$n] . trim($fix_elements[$n + 1]) . " ";
|
|
$line_fixed = 1;
|
|
}
|
|
}
|
|
|
|
# // is a comment
|
|
} elsif ($op eq '//') {
|
|
|
|
# : when part of a bitfield
|
|
} elsif ($opv eq ':B') {
|
|
# skip the bitfield test for now
|
|
|
|
# No spaces for:
|
|
# ->
|
|
} elsif ($op eq '->') {
|
|
if ($ctx =~ /Wx.|.xW/) {
|
|
if (ERROR("SPACING",
|
|
"spaces prohibited around that '$op' $at\n" . $hereptr)) {
|
|
$good = rtrim($fix_elements[$n]) . trim($fix_elements[$n + 1]);
|
|
if (defined $fix_elements[$n + 2]) {
|
|
$fix_elements[$n + 2] =~ s/^\s+//;
|
|
}
|
|
$line_fixed = 1;
|
|
}
|
|
}
|
|
|
|
# , must not have a space before and must have a space on the right.
|
|
} elsif ($op eq ',') {
|
|
my $rtrim_before = 0;
|
|
my $space_after = 0;
|
|
if ($ctx =~ /Wx./) {
|
|
if (ERROR("SPACING",
|
|
"space prohibited before that '$op' $at\n" . $hereptr)) {
|
|
$line_fixed = 1;
|
|
$rtrim_before = 1;
|
|
}
|
|
}
|
|
if ($ctx !~ /.x[WEC]/ && $cc !~ /^}/) {
|
|
if (ERROR("SPACING",
|
|
"space required after that '$op' $at\n" . $hereptr)) {
|
|
$line_fixed = 1;
|
|
$last_after = $n;
|
|
$space_after = 1;
|
|
}
|
|
}
|
|
if ($rtrim_before || $space_after) {
|
|
if ($rtrim_before) {
|
|
$good = rtrim($fix_elements[$n]) . trim($fix_elements[$n + 1]);
|
|
} else {
|
|
$good = $fix_elements[$n] . trim($fix_elements[$n + 1]);
|
|
}
|
|
if ($space_after) {
|
|
$good .= " ";
|
|
}
|
|
}
|
|
|
|
# '*' as part of a type definition -- reported already.
|
|
} elsif ($opv eq '*_') {
|
|
#warn "'*' is part of type\n";
|
|
|
|
# unary operators should have a space before and
|
|
# none after. May be left adjacent to another
|
|
# unary operator, or a cast
|
|
} elsif ($op eq '!' || $op eq '~' ||
|
|
$opv eq '*U' || $opv eq '-U' ||
|
|
$opv eq '&U' || $opv eq '&&U') {
|
|
if ($ctx !~ /[WEBC]x./ && $ca !~ /(?:\)|!|~|\*|-|\&|\||\+\+|\-\-|\{)$/) {
|
|
if (ERROR("SPACING",
|
|
"space required before that '$op' $at\n" . $hereptr)) {
|
|
if ($n != $last_after + 2) {
|
|
$good = $fix_elements[$n] . " " . ltrim($fix_elements[$n + 1]);
|
|
$line_fixed = 1;
|
|
}
|
|
}
|
|
}
|
|
if ($op eq '*' && $cc =~/\s*$Modifier\b/) {
|
|
# A unary '*' may be const
|
|
|
|
} elsif ($ctx =~ /.xW/) {
|
|
if (ERROR("SPACING",
|
|
"space prohibited after that '$op' $at\n" . $hereptr)) {
|
|
$good = $fix_elements[$n] . rtrim($fix_elements[$n + 1]);
|
|
if (defined $fix_elements[$n + 2]) {
|
|
$fix_elements[$n + 2] =~ s/^\s+//;
|
|
}
|
|
$line_fixed = 1;
|
|
}
|
|
}
|
|
|
|
# unary ++ and unary -- are allowed no space on one side.
|
|
} elsif ($op eq '++' or $op eq '--') {
|
|
if ($ctx !~ /[WEOBC]x[^W]/ && $ctx !~ /[^W]x[WOBEC]/) {
|
|
if (ERROR("SPACING",
|
|
"space required one side of that '$op' $at\n" . $hereptr)) {
|
|
$good = $fix_elements[$n] . trim($fix_elements[$n + 1]) . " ";
|
|
$line_fixed = 1;
|
|
}
|
|
}
|
|
if ($ctx =~ /Wx[BE]/ ||
|
|
($ctx =~ /Wx./ && $cc =~ /^;/)) {
|
|
if (ERROR("SPACING",
|
|
"space prohibited before that '$op' $at\n" . $hereptr)) {
|
|
$good = rtrim($fix_elements[$n]) . trim($fix_elements[$n + 1]);
|
|
$line_fixed = 1;
|
|
}
|
|
}
|
|
if ($ctx =~ /ExW/) {
|
|
if (ERROR("SPACING",
|
|
"space prohibited after that '$op' $at\n" . $hereptr)) {
|
|
$good = $fix_elements[$n] . trim($fix_elements[$n + 1]);
|
|
if (defined $fix_elements[$n + 2]) {
|
|
$fix_elements[$n + 2] =~ s/^\s+//;
|
|
}
|
|
$line_fixed = 1;
|
|
}
|
|
}
|
|
|
|
# << and >> may either have or not have spaces both sides
|
|
} elsif ($op eq '<<' or $op eq '>>' or
|
|
$op eq '&' or $op eq '^' or $op eq '|' or
|
|
$op eq '+' or $op eq '-' or
|
|
$op eq '*' or $op eq '/' or
|
|
$op eq '%')
|
|
{
|
|
if ($check) {
|
|
if (defined $fix_elements[$n + 2] && $ctx !~ /[EW]x[EW]/) {
|
|
if (CHK("SPACING",
|
|
"spaces preferred around that '$op' $at\n" . $hereptr)) {
|
|
$good = rtrim($fix_elements[$n]) . " " . trim($fix_elements[$n + 1]) . " ";
|
|
$fix_elements[$n + 2] =~ s/^\s+//;
|
|
$line_fixed = 1;
|
|
}
|
|
} elsif (!defined $fix_elements[$n + 2] && $ctx !~ /Wx[OE]/) {
|
|
if (CHK("SPACING",
|
|
"space preferred before that '$op' $at\n" . $hereptr)) {
|
|
$good = rtrim($fix_elements[$n]) . " " . trim($fix_elements[$n + 1]);
|
|
$line_fixed = 1;
|
|
}
|
|
}
|
|
} elsif ($ctx =~ /Wx[^WCE]|[^WCE]xW/) {
|
|
if (ERROR("SPACING",
|
|
"need consistent spacing around '$op' $at\n" . $hereptr)) {
|
|
$good = rtrim($fix_elements[$n]) . " " . trim($fix_elements[$n + 1]) . " ";
|
|
if (defined $fix_elements[$n + 2]) {
|
|
$fix_elements[$n + 2] =~ s/^\s+//;
|
|
}
|
|
$line_fixed = 1;
|
|
}
|
|
}
|
|
|
|
# A colon needs no spaces before when it is
|
|
# terminating a case value or a label.
|
|
} elsif ($opv eq ':C' || $opv eq ':L') {
|
|
if ($ctx =~ /Wx./) {
|
|
if (ERROR("SPACING",
|
|
"space prohibited before that '$op' $at\n" . $hereptr)) {
|
|
$good = rtrim($fix_elements[$n]) . trim($fix_elements[$n + 1]);
|
|
$line_fixed = 1;
|
|
}
|
|
}
|
|
|
|
# All the others need spaces both sides.
|
|
} elsif ($ctx !~ /[EWC]x[CWE]/) {
|
|
my $ok = 0;
|
|
|
|
# Ignore email addresses <foo@bar>
|
|
if (($op eq '<' &&
|
|
$cc =~ /^\S+\@\S+>/) ||
|
|
($op eq '>' &&
|
|
$ca =~ /<\S+\@\S+$/))
|
|
{
|
|
$ok = 1;
|
|
}
|
|
|
|
# for asm volatile statements
|
|
# ignore a colon with another
|
|
# colon immediately before or after
|
|
if (($op eq ':') &&
|
|
($ca =~ /:$/ || $cc =~ /^:/)) {
|
|
$ok = 1;
|
|
}
|
|
|
|
# messages are ERROR, but ?: are CHK
|
|
if ($ok == 0) {
|
|
my $msg_level = \&ERROR;
|
|
$msg_level = \&CHK if (($op eq '?:' || $op eq '?' || $op eq ':') && $ctx =~ /VxV/);
|
|
|
|
if (&{$msg_level}("SPACING",
|
|
"spaces required around that '$op' $at\n" . $hereptr)) {
|
|
$good = rtrim($fix_elements[$n]) . " " . trim($fix_elements[$n + 1]) . " ";
|
|
if (defined $fix_elements[$n + 2]) {
|
|
$fix_elements[$n + 2] =~ s/^\s+//;
|
|
}
|
|
$line_fixed = 1;
|
|
}
|
|
}
|
|
}
|
|
$off += length($elements[$n + 1]);
|
|
|
|
## print("n: <$n> GOOD: <$good>\n");
|
|
|
|
$fixed_line = $fixed_line . $good;
|
|
}
|
|
|
|
if (($#elements % 2) == 0) {
|
|
$fixed_line = $fixed_line . $fix_elements[$#elements];
|
|
}
|
|
|
|
if ($fix && $line_fixed && $fixed_line ne $fixed[$fixlinenr]) {
|
|
$fixed[$fixlinenr] = $fixed_line;
|
|
}
|
|
|
|
|
|
}
|
|
|
|
# check for whitespace before a non-naked semicolon
|
|
if ($line =~ /^\+.*\S\s+;\s*$/) {
|
|
if (WARN("SPACING",
|
|
"space prohibited before semicolon\n" . $herecurr) &&
|
|
$fix) {
|
|
1 while $fixed[$fixlinenr] =~
|
|
s/^(\+.*\S)\s+;/$1;/;
|
|
}
|
|
}
|
|
|
|
# check for multiple assignments
|
|
if ($line =~ /^.\s*$Lval\s*=\s*$Lval\s*=(?!=)/) {
|
|
CHK("MULTIPLE_ASSIGNMENTS",
|
|
"multiple assignments should be avoided\n" . $herecurr);
|
|
}
|
|
|
|
## # check for multiple declarations, allowing for a function declaration
|
|
## # continuation.
|
|
## if ($line =~ /^.\s*$Type\s+$Ident(?:\s*=[^,{]*)?\s*,\s*$Ident.*/ &&
|
|
## $line !~ /^.\s*$Type\s+$Ident(?:\s*=[^,{]*)?\s*,\s*$Type\s*$Ident.*/) {
|
|
##
|
|
## # Remove any bracketed sections to ensure we do not
|
|
## # falsly report the parameters of functions.
|
|
## my $ln = $line;
|
|
## while ($ln =~ s/\([^\(\)]*\)//g) {
|
|
## }
|
|
## if ($ln =~ /,/) {
|
|
## WARN("MULTIPLE_DECLARATION",
|
|
## "declaring multiple variables together should be avoided\n" . $herecurr);
|
|
## }
|
|
## }
|
|
|
|
#need space before brace following if, while, etc
|
|
if (($line =~ /\(.*\)\{/ && $line !~ /\($Type\)\{/) ||
|
|
$line =~ /\b(?:else|do)\{/) {
|
|
if (ERROR("SPACING",
|
|
"space required before the open brace '{'\n" . $herecurr) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =~ s/^(\+.*(?:do|else|\)))\{/$1 {/;
|
|
}
|
|
}
|
|
|
|
## # check for blank lines before declarations
|
|
## if ($line =~ /^.\t+$Type\s+$Ident(?:\s*=.*)?;/ &&
|
|
## $prevrawline =~ /^.\s*$/) {
|
|
## WARN("SPACING",
|
|
## "No blank lines before declarations\n" . $hereprev);
|
|
## }
|
|
##
|
|
|
|
# closing brace should have a space following it when it has anything
|
|
# on the line
|
|
if ($line =~ /}(?!(?:,|;|\)))\S/) {
|
|
if (ERROR("SPACING",
|
|
"space required after that close brace '}'\n" . $herecurr) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =~
|
|
s/}((?!(?:,|;|\)))\S)/} $1/;
|
|
}
|
|
}
|
|
|
|
# check spacing on square brackets
|
|
if ($line =~ /\[\s/ && $line !~ /\[\s*$/) {
|
|
if (ERROR("SPACING",
|
|
"space prohibited after that open square bracket '['\n" . $herecurr) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =~
|
|
s/\[\s+/\[/;
|
|
}
|
|
}
|
|
if ($line =~ /\s\]/) {
|
|
if (ERROR("SPACING",
|
|
"space prohibited before that close square bracket ']'\n" . $herecurr) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =~
|
|
s/\s+\]/\]/;
|
|
}
|
|
}
|
|
|
|
# check spacing on parentheses
|
|
if ($line =~ /\(\s/ && $line !~ /\(\s*(?:\\)?$/ &&
|
|
$line !~ /for\s*\(\s+;/ && $line !~ /^\+\s*[A-Z_][A-Z\d_]*\(\s*\d+(\,.*)?\)\,?$/) {
|
|
if (ERROR("SPACING",
|
|
"space prohibited after that open parenthesis '('\n" . $herecurr) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =~
|
|
s/\(\s+/\(/;
|
|
}
|
|
}
|
|
if ($line =~ /(\s+)\)/ && $line !~ /^.\s*\)/ &&
|
|
$line !~ /for\s*\(.*;\s+\)/ &&
|
|
$line !~ /:\s+\)/) {
|
|
if (ERROR("SPACING",
|
|
"space prohibited before that close parenthesis ')'\n" . $herecurr) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =~
|
|
s/\s+\)/\)/;
|
|
}
|
|
}
|
|
|
|
# check unnecessary parentheses around addressof/dereference single $Lvals
|
|
# ie: &(foo->bar) should be &foo->bar and *(foo->bar) should be *foo->bar
|
|
|
|
while ($line =~ /(?:[^&]&\s*|\*)\(\s*($Ident\s*(?:$Member\s*)+)\s*\)/g) {
|
|
my $var = $1;
|
|
if (CHK("UNNECESSARY_PARENTHESES",
|
|
"Unnecessary parentheses around $var\n" . $herecurr) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =~ s/\(\s*\Q$var\E\s*\)/$var/;
|
|
}
|
|
}
|
|
|
|
# check for unnecessary parentheses around function pointer uses
|
|
# ie: (foo->bar)(); should be foo->bar();
|
|
# but not "if (foo->bar) (" to avoid some false positives
|
|
if ($line =~ /(\bif\s*|)(\(\s*$Ident\s*(?:$Member\s*)+\))[ \t]*\(/ && $1 !~ /^if/) {
|
|
my $var = $2;
|
|
if (CHK("UNNECESSARY_PARENTHESES",
|
|
"Unnecessary parentheses around function pointer $var\n" . $herecurr) &&
|
|
$fix) {
|
|
my $var2 = deparenthesize($var);
|
|
$var2 =~ s/\s//g;
|
|
$fixed[$fixlinenr] =~ s/\Q$var\E/$var2/;
|
|
}
|
|
}
|
|
|
|
# check for unnecessary parentheses around comparisons in if uses
|
|
# when !drivers/staging or command-line uses --strict
|
|
if (($realfile !~ m@^(?:drivers/staging/)@ || $check_orig) &&
|
|
$perl_version_ok && defined($stat) &&
|
|
$stat =~ /(^.\s*if\s*($balanced_parens))/) {
|
|
my $if_stat = $1;
|
|
my $test = substr($2, 1, -1);
|
|
my $herectx;
|
|
while ($test =~ /(?:^|[^\w\&\!\~])+\s*\(\s*([\&\!\~]?\s*$Lval\s*(?:$Compare\s*$FuncArg)?)\s*\)/g) {
|
|
my $match = $1;
|
|
# avoid parentheses around potential macro args
|
|
next if ($match =~ /^\s*\w+\s*$/);
|
|
if (!defined($herectx)) {
|
|
$herectx = $here . "\n";
|
|
my $cnt = statement_rawlines($if_stat);
|
|
for (my $n = 0; $n < $cnt; $n++) {
|
|
my $rl = raw_line($linenr, $n);
|
|
$herectx .= $rl . "\n";
|
|
last if $rl =~ /^[ \+].*\{/;
|
|
}
|
|
}
|
|
CHK("UNNECESSARY_PARENTHESES",
|
|
"Unnecessary parentheses around '$match'\n" . $herectx);
|
|
}
|
|
}
|
|
|
|
#goto labels aren't indented, allow a single space however
|
|
if ($line=~/^.\s+[A-Za-z\d_]+:(?![0-9]+)/ and
|
|
!($line=~/^. [A-Za-z\d_]+:/) and !($line=~/^.\s+default:/)) {
|
|
if (WARN("INDENTED_LABEL",
|
|
"labels should not be indented\n" . $herecurr) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =~
|
|
s/^(.)\s+/$1/;
|
|
}
|
|
}
|
|
|
|
# return is not a function
|
|
if (defined($stat) && $stat =~ /^.\s*return(\s*)\(/s) {
|
|
my $spacing = $1;
|
|
if ($perl_version_ok &&
|
|
$stat =~ /^.\s*return\s*($balanced_parens)\s*;\s*$/) {
|
|
my $value = $1;
|
|
$value = deparenthesize($value);
|
|
if ($value =~ m/^\s*$FuncArg\s*(?:\?|$)/) {
|
|
ERROR("RETURN_PARENTHESES",
|
|
"return is not a function, parentheses are not required\n" . $herecurr);
|
|
}
|
|
} elsif ($spacing !~ /\s+/) {
|
|
ERROR("SPACING",
|
|
"space required before the open parenthesis '('\n" . $herecurr);
|
|
}
|
|
}
|
|
|
|
# unnecessary return in a void function
|
|
# at end-of-function, with the previous line a single leading tab, then return;
|
|
# and the line before that not a goto label target like "out:"
|
|
if ($sline =~ /^[ \+]}\s*$/ &&
|
|
$prevline =~ /^\+\treturn\s*;\s*$/ &&
|
|
$linenr >= 3 &&
|
|
$lines[$linenr - 3] =~ /^[ +]/ &&
|
|
$lines[$linenr - 3] !~ /^[ +]\s*$Ident\s*:/) {
|
|
WARN("RETURN_VOID",
|
|
"void function return statements are not generally useful\n" . $hereprev);
|
|
}
|
|
|
|
# if statements using unnecessary parentheses - ie: if ((foo == bar))
|
|
if ($perl_version_ok &&
|
|
$line =~ /\bif\s*((?:\(\s*){2,})/) {
|
|
my $openparens = $1;
|
|
my $count = $openparens =~ tr@\(@\(@;
|
|
my $msg = "";
|
|
if ($line =~ /\bif\s*(?:\(\s*){$count,$count}$LvalOrFunc\s*($Compare)\s*$LvalOrFunc(?:\s*\)){$count,$count}/) {
|
|
my $comp = $4; #Not $1 because of $LvalOrFunc
|
|
$msg = " - maybe == should be = ?" if ($comp eq "==");
|
|
WARN("UNNECESSARY_PARENTHESES",
|
|
"Unnecessary parentheses$msg\n" . $herecurr);
|
|
}
|
|
}
|
|
|
|
# comparisons with a constant or upper case identifier on the left
|
|
# avoid cases like "foo + BAR < baz"
|
|
# only fix matches surrounded by parentheses to avoid incorrect
|
|
# conversions like "FOO < baz() + 5" being "misfixed" to "baz() > FOO + 5"
|
|
if ($perl_version_ok &&
|
|
$line =~ /^\+(.*)\b($Constant|[A-Z_][A-Z0-9_]*)\s*($Compare)\s*($LvalOrFunc)/) {
|
|
my $lead = $1;
|
|
my $const = $2;
|
|
my $comp = $3;
|
|
my $to = $4;
|
|
my $newcomp = $comp;
|
|
if ($lead !~ /(?:$Operators|\.)\s*$/ &&
|
|
$to !~ /^(?:Constant|[A-Z_][A-Z0-9_]*)$/ &&
|
|
WARN("CONSTANT_COMPARISON",
|
|
"Comparisons should place the constant on the right side of the test\n" . $herecurr) &&
|
|
$fix) {
|
|
if ($comp eq "<") {
|
|
$newcomp = ">";
|
|
} elsif ($comp eq "<=") {
|
|
$newcomp = ">=";
|
|
} elsif ($comp eq ">") {
|
|
$newcomp = "<";
|
|
} elsif ($comp eq ">=") {
|
|
$newcomp = "<=";
|
|
}
|
|
$fixed[$fixlinenr] =~ s/\(\s*\Q$const\E\s*$Compare\s*\Q$to\E\s*\)/($to $newcomp $const)/;
|
|
}
|
|
}
|
|
|
|
# Return of what appears to be an errno should normally be negative
|
|
if ($sline =~ /\breturn(?:\s*\(+\s*|\s+)(E[A-Z]+)(?:\s*\)+\s*|\s*)[;:,]/) {
|
|
my $name = $1;
|
|
if ($name ne 'EOF' && $name ne 'ERROR') {
|
|
WARN("USE_NEGATIVE_ERRNO",
|
|
"return of an errno should typically be negative (ie: return -$1)\n" . $herecurr);
|
|
}
|
|
}
|
|
|
|
# Need a space before open parenthesis after if, while etc
|
|
if ($line =~ /\b(if|while|for|switch)\(/) {
|
|
if (ERROR("SPACING",
|
|
"space required before the open parenthesis '('\n" . $herecurr) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =~
|
|
s/\b(if|while|for|switch)\(/$1 \(/;
|
|
}
|
|
}
|
|
|
|
# Check for illegal assignment in if conditional -- and check for trailing
|
|
# statements after the conditional.
|
|
if ($line =~ /do\s*(?!{)/) {
|
|
($stat, $cond, $line_nr_next, $remain_next, $off_next) =
|
|
ctx_statement_block($linenr, $realcnt, 0)
|
|
if (!defined $stat);
|
|
my ($stat_next) = ctx_statement_block($line_nr_next,
|
|
$remain_next, $off_next);
|
|
$stat_next =~ s/\n./\n /g;
|
|
##print "stat<$stat> stat_next<$stat_next>\n";
|
|
|
|
if ($stat_next =~ /^\s*while\b/) {
|
|
# If the statement carries leading newlines,
|
|
# then count those as offsets.
|
|
my ($whitespace) =
|
|
($stat_next =~ /^((?:\s*\n[+-])*\s*)/s);
|
|
my $offset =
|
|
statement_rawlines($whitespace) - 1;
|
|
|
|
$suppress_whiletrailers{$line_nr_next +
|
|
$offset} = 1;
|
|
}
|
|
}
|
|
if (!defined $suppress_whiletrailers{$linenr} &&
|
|
defined($stat) && defined($cond) &&
|
|
$line =~ /\b(?:if|while|for)\s*\(/ && $line !~ /^.\s*#/) {
|
|
my ($s, $c) = ($stat, $cond);
|
|
|
|
if ($c =~ /\bif\s*\(.*[^<>!=]=[^=].*/s) {
|
|
ERROR("ASSIGN_IN_IF",
|
|
"do not use assignment in if condition\n" . $herecurr);
|
|
}
|
|
|
|
# Find out what is on the end of the line after the
|
|
# conditional.
|
|
substr($s, 0, length($c), '');
|
|
$s =~ s/\n.*//g;
|
|
$s =~ s/$;//g; # Remove any comments
|
|
if (length($c) && $s !~ /^\s*{?\s*\\*\s*$/ &&
|
|
$c !~ /}\s*while\s*/)
|
|
{
|
|
# Find out how long the conditional actually is.
|
|
my @newlines = ($c =~ /\n/gs);
|
|
my $cond_lines = 1 + $#newlines;
|
|
my $stat_real = '';
|
|
|
|
$stat_real = raw_line($linenr, $cond_lines)
|
|
. "\n" if ($cond_lines);
|
|
if (defined($stat_real) && $cond_lines > 1) {
|
|
$stat_real = "[...]\n$stat_real";
|
|
}
|
|
|
|
ERROR("TRAILING_STATEMENTS",
|
|
"trailing statements should be on next line\n" . $herecurr . $stat_real);
|
|
}
|
|
}
|
|
|
|
# Check for bitwise tests written as boolean
|
|
if ($line =~ /
|
|
(?:
|
|
(?:\[|\(|\&\&|\|\|)
|
|
\s*0[xX][0-9]+\s*
|
|
(?:\&\&|\|\|)
|
|
|
|
|
(?:\&\&|\|\|)
|
|
\s*0[xX][0-9]+\s*
|
|
(?:\&\&|\|\||\)|\])
|
|
)/x)
|
|
{
|
|
WARN("HEXADECIMAL_BOOLEAN_TEST",
|
|
"boolean test with hexadecimal, perhaps just 1 \& or \|?\n" . $herecurr);
|
|
}
|
|
|
|
# if and else should not have general statements after it
|
|
if ($line =~ /^.\s*(?:}\s*)?else\b(.*)/) {
|
|
my $s = $1;
|
|
$s =~ s/$;//g; # Remove any comments
|
|
if ($s !~ /^\s*(?:\sif|(?:{|)\s*\\?\s*$)/) {
|
|
ERROR("TRAILING_STATEMENTS",
|
|
"trailing statements should be on next line\n" . $herecurr);
|
|
}
|
|
}
|
|
# if should not continue a brace
|
|
if ($line =~ /}\s*if\b/) {
|
|
ERROR("TRAILING_STATEMENTS",
|
|
"trailing statements should be on next line (or did you mean 'else if'?)\n" .
|
|
$herecurr);
|
|
}
|
|
# case and default should not have general statements after them
|
|
if ($line =~ /^.\s*(?:case\s*.*|default\s*):/g &&
|
|
$line !~ /\G(?:
|
|
(?:\s*$;*)(?:\s*{)?(?:\s*$;*)(?:\s*\\)?\s*$|
|
|
\s*return\s+
|
|
)/xg)
|
|
{
|
|
ERROR("TRAILING_STATEMENTS",
|
|
"trailing statements should be on next line\n" . $herecurr);
|
|
}
|
|
|
|
# Check for }<nl>else {, these must be at the same
|
|
# indent level to be relevant to each other.
|
|
if ($prevline=~/}\s*$/ and $line=~/^.\s*else\s*/ &&
|
|
$previndent == $indent) {
|
|
if (ERROR("ELSE_AFTER_BRACE",
|
|
"else should follow close brace '}'\n" . $hereprev) &&
|
|
$fix && $prevline =~ /^\+/ && $line =~ /^\+/) {
|
|
fix_delete_line($fixlinenr - 1, $prevrawline);
|
|
fix_delete_line($fixlinenr, $rawline);
|
|
my $fixedline = $prevrawline;
|
|
$fixedline =~ s/}\s*$//;
|
|
if ($fixedline !~ /^\+\s*$/) {
|
|
fix_insert_line($fixlinenr, $fixedline);
|
|
}
|
|
$fixedline = $rawline;
|
|
$fixedline =~ s/^(.\s*)else/$1} else/;
|
|
fix_insert_line($fixlinenr, $fixedline);
|
|
}
|
|
}
|
|
|
|
if ($prevline=~/}\s*$/ and $line=~/^.\s*while\s*/ &&
|
|
$previndent == $indent) {
|
|
my ($s, $c) = ctx_statement_block($linenr, $realcnt, 0);
|
|
|
|
# Find out what is on the end of the line after the
|
|
# conditional.
|
|
substr($s, 0, length($c), '');
|
|
$s =~ s/\n.*//g;
|
|
|
|
if ($s =~ /^\s*;/) {
|
|
if (ERROR("WHILE_AFTER_BRACE",
|
|
"while should follow close brace '}'\n" . $hereprev) &&
|
|
$fix && $prevline =~ /^\+/ && $line =~ /^\+/) {
|
|
fix_delete_line($fixlinenr - 1, $prevrawline);
|
|
fix_delete_line($fixlinenr, $rawline);
|
|
my $fixedline = $prevrawline;
|
|
my $trailing = $rawline;
|
|
$trailing =~ s/^\+//;
|
|
$trailing = trim($trailing);
|
|
$fixedline =~ s/}\s*$/} $trailing/;
|
|
fix_insert_line($fixlinenr, $fixedline);
|
|
}
|
|
}
|
|
}
|
|
|
|
#Specific variable tests
|
|
while ($line =~ m{($Constant|$Lval)}g) {
|
|
my $var = $1;
|
|
|
|
#gcc binary extension
|
|
if ($var =~ /^$Binary$/) {
|
|
if (WARN("GCC_BINARY_CONSTANT",
|
|
"Avoid gcc v4.3+ binary constant extension: <$var>\n" . $herecurr) &&
|
|
$fix) {
|
|
my $hexval = sprintf("0x%x", oct($var));
|
|
$fixed[$fixlinenr] =~
|
|
s/\b$var\b/$hexval/;
|
|
}
|
|
}
|
|
|
|
#CamelCase
|
|
if ($var !~ /^$Constant$/ &&
|
|
$var =~ /[A-Z][a-z]|[a-z][A-Z]/ &&
|
|
#Ignore Page<foo> variants
|
|
$var !~ /^(?:Clear|Set|TestClear|TestSet|)Page[A-Z]/ &&
|
|
#Ignore SI style variants like nS, mV and dB (ie: max_uV, regulator_min_uA_show)
|
|
$var !~ /^(?:[a-z_]*?)_?[a-z][A-Z](?:_[a-z_]+)?$/ &&
|
|
#Ignore some three character SI units explicitly, like MiB and KHz
|
|
$var !~ /^(?:[a-z_]*?)_?(?:[KMGT]iB|[KMGT]?Hz)(?:_[a-z_]+)?$/) {
|
|
while ($var =~ m{($Ident)}g) {
|
|
my $word = $1;
|
|
next if ($word !~ /[A-Z][a-z]|[a-z][A-Z]/);
|
|
if ($check) {
|
|
seed_camelcase_includes();
|
|
if (!$file && !$camelcase_file_seeded) {
|
|
seed_camelcase_file($realfile);
|
|
$camelcase_file_seeded = 1;
|
|
}
|
|
}
|
|
if (!defined $camelcase{$word}) {
|
|
$camelcase{$word} = 1;
|
|
CHK("CAMELCASE",
|
|
"Avoid CamelCase: <$word>\n" . $herecurr);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
#no spaces allowed after \ in define
|
|
if ($line =~ /\#\s*define.*\\\s+$/) {
|
|
if (WARN("WHITESPACE_AFTER_LINE_CONTINUATION",
|
|
"Whitespace after \\ makes next lines useless\n" . $herecurr) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =~ s/\s+$//;
|
|
}
|
|
}
|
|
|
|
# warn if <asm/foo.h> is #included and <linux/foo.h> is available and includes
|
|
# itself <asm/foo.h> (uses RAW line)
|
|
if ($tree && $rawline =~ m{^.\s*\#\s*include\s*\<asm\/(.*)\.h\>}) {
|
|
my $file = "$1.h";
|
|
my $checkfile = "include/linux/$file";
|
|
if (-f "$root/$checkfile" &&
|
|
$realfile ne $checkfile &&
|
|
$1 !~ /$allowed_asm_includes/)
|
|
{
|
|
my $asminclude = `grep -Ec "#include\\s+<asm/$file>" $root/$checkfile`;
|
|
if ($asminclude > 0) {
|
|
if ($realfile =~ m{^arch/}) {
|
|
CHK("ARCH_INCLUDE_LINUX",
|
|
"Consider using #include <linux/$file> instead of <asm/$file>\n" . $herecurr);
|
|
} else {
|
|
WARN("INCLUDE_LINUX",
|
|
"Use #include <linux/$file> instead of <asm/$file>\n" . $herecurr);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
# multi-statement macros should be enclosed in a do while loop, grab the
|
|
# first statement and ensure its the whole macro if its not enclosed
|
|
# in a known good container
|
|
if ($realfile !~ m@/vmlinux.lds.h$@ &&
|
|
$line =~ /^.\s*\#\s*define\s*$Ident(\()?/) {
|
|
my $ln = $linenr;
|
|
my $cnt = $realcnt - 1;
|
|
my ($off, $dstat, $dcond, $rest);
|
|
my $ctx = '';
|
|
my $has_flow_statement = 0;
|
|
my $has_arg_concat = 0;
|
|
($dstat, $dcond, $ln, $cnt, $off) =
|
|
ctx_statement_block($linenr, $realcnt, 0);
|
|
$ctx = $dstat;
|
|
#print "dstat<$dstat> dcond<$dcond> cnt<$cnt> off<$off>\n";
|
|
#print "LINE<$lines[$ln-1]> len<" . length($lines[$ln-1]) . "\n";
|
|
|
|
$has_flow_statement = 1 if ($ctx =~ /\b(goto|return)\b/);
|
|
$has_arg_concat = 1 if ($ctx =~ /\#\#/ && $ctx !~ /\#\#\s*(?:__VA_ARGS__|args)\b/);
|
|
|
|
$dstat =~ s/^.\s*\#\s*define\s+$Ident(\([^\)]*\))?\s*//;
|
|
my $define_args = $1;
|
|
my $define_stmt = $dstat;
|
|
my @def_args = ();
|
|
|
|
if (defined $define_args && $define_args ne "") {
|
|
$define_args = substr($define_args, 1, length($define_args) - 2);
|
|
$define_args =~ s/\s*//g;
|
|
$define_args =~ s/\\\+?//g;
|
|
@def_args = split(",", $define_args);
|
|
}
|
|
|
|
$dstat =~ s/$;//g;
|
|
$dstat =~ s/\\\n.//g;
|
|
$dstat =~ s/^\s*//s;
|
|
$dstat =~ s/\s*$//s;
|
|
|
|
# Flatten any parentheses and braces
|
|
while ($dstat =~ s/\([^\(\)]*\)/1/ ||
|
|
$dstat =~ s/\{[^\{\}]*\}/1/ ||
|
|
$dstat =~ s/.\[[^\[\]]*\]/1/)
|
|
{
|
|
}
|
|
|
|
# Extremely long macros may fall off the end of the
|
|
# available context without closing. Give a dangling
|
|
# backslash the benefit of the doubt and allow it
|
|
# to gobble any hanging open-parens.
|
|
$dstat =~ s/\(.+\\$/1/;
|
|
|
|
# Flatten any obvious string concatentation.
|
|
while ($dstat =~ s/($String)\s*$Ident/$1/ ||
|
|
$dstat =~ s/$Ident\s*($String)/$1/)
|
|
{
|
|
}
|
|
|
|
# Make asm volatile uses seem like a generic function
|
|
$dstat =~ s/\b_*asm_*\s+_*volatile_*\b/asm_volatile/g;
|
|
|
|
my $exceptions = qr{
|
|
$Declare|
|
|
module_param_named|
|
|
MODULE_PARM_DESC|
|
|
DECLARE_PER_CPU|
|
|
DEFINE_PER_CPU|
|
|
CLK_[A-Z\d_]+|
|
|
__typeof__\(|
|
|
union|
|
|
struct|
|
|
\.$Ident\s*=\s*|
|
|
^\"|\"$|
|
|
^\[
|
|
}x;
|
|
#print "REST<$rest> dstat<$dstat> ctx<$ctx>\n";
|
|
|
|
$ctx =~ s/\n*$//;
|
|
my $stmt_cnt = statement_rawlines($ctx);
|
|
my $herectx = get_stat_here($linenr, $stmt_cnt, $here);
|
|
|
|
if ($dstat ne '' &&
|
|
$dstat !~ /^(?:$Ident|-?$Constant),$/ && # 10, // foo(),
|
|
$dstat !~ /^(?:$Ident|-?$Constant);$/ && # foo();
|
|
$dstat !~ /^[!~-]?(?:$Lval|$Constant)$/ && # 10 // foo() // !foo // ~foo // -foo // foo->bar // foo.bar->baz
|
|
$dstat !~ /^'X'$/ && $dstat !~ /^'XX'$/ && # character constants
|
|
$dstat !~ /$exceptions/ &&
|
|
$dstat !~ /^\.$Ident\s*=/ && # .foo =
|
|
$dstat !~ /^(?:\#\s*$Ident|\#\s*$Constant)\s*$/ && # stringification #foo
|
|
$dstat !~ /^do\s*$Constant\s*while\s*$Constant;?$/ && # do {...} while (...); // do {...} while (...)
|
|
$dstat !~ /^for\s*$Constant$/ && # for (...)
|
|
$dstat !~ /^for\s*$Constant\s+(?:$Ident|-?$Constant)$/ && # for (...) bar()
|
|
$dstat !~ /^do\s*{/ && # do {...
|
|
$dstat !~ /^\(\{/ && # ({...
|
|
$ctx !~ /^.\s*#\s*define\s+TRACE_(?:SYSTEM|INCLUDE_FILE|INCLUDE_PATH)\b/)
|
|
{
|
|
if ($dstat =~ /^\s*if\b/) {
|
|
ERROR("MULTISTATEMENT_MACRO_USE_DO_WHILE",
|
|
"Macros starting with if should be enclosed by a do - while loop to avoid possible if/else logic defects\n" . "$herectx");
|
|
} elsif ($dstat =~ /;/) {
|
|
ERROR("MULTISTATEMENT_MACRO_USE_DO_WHILE",
|
|
"Macros with multiple statements should be enclosed in a do - while loop\n" . "$herectx");
|
|
} else {
|
|
ERROR("COMPLEX_MACRO",
|
|
"Macros with complex values should be enclosed in parentheses\n" . "$herectx");
|
|
}
|
|
|
|
}
|
|
|
|
# Make $define_stmt single line, comment-free, etc
|
|
my @stmt_array = split('\n', $define_stmt);
|
|
my $first = 1;
|
|
$define_stmt = "";
|
|
foreach my $l (@stmt_array) {
|
|
$l =~ s/\\$//;
|
|
if ($first) {
|
|
$define_stmt = $l;
|
|
$first = 0;
|
|
} elsif ($l =~ /^[\+ ]/) {
|
|
$define_stmt .= substr($l, 1);
|
|
}
|
|
}
|
|
$define_stmt =~ s/$;//g;
|
|
$define_stmt =~ s/\s+/ /g;
|
|
$define_stmt = trim($define_stmt);
|
|
|
|
# check if any macro arguments are reused (ignore '...' and 'type')
|
|
foreach my $arg (@def_args) {
|
|
next if ($arg =~ /\.\.\./);
|
|
next if ($arg =~ /^type$/i);
|
|
my $tmp_stmt = $define_stmt;
|
|
$tmp_stmt =~ s/\b(typeof|__typeof__|__builtin\w+|typecheck\s*\(\s*$Type\s*,|\#+)\s*\(*\s*$arg\s*\)*\b//g;
|
|
$tmp_stmt =~ s/\#+\s*$arg\b//g;
|
|
$tmp_stmt =~ s/\b$arg\s*\#\#//g;
|
|
my $use_cnt = () = $tmp_stmt =~ /\b$arg\b/g;
|
|
if ($use_cnt > 1) {
|
|
CHK("MACRO_ARG_REUSE",
|
|
"Macro argument reuse '$arg' - possible side-effects?\n" . "$herectx");
|
|
}
|
|
# check if any macro arguments may have other precedence issues
|
|
if ($tmp_stmt =~ m/($Operators)?\s*\b$arg\b\s*($Operators)?/m &&
|
|
((defined($1) && $1 ne ',') ||
|
|
(defined($2) && $2 ne ','))) {
|
|
CHK("MACRO_ARG_PRECEDENCE",
|
|
"Macro argument '$arg' may be better as '($arg)' to avoid precedence issues\n" . "$herectx");
|
|
}
|
|
}
|
|
|
|
# check for macros with flow control, but without ## concatenation
|
|
# ## concatenation is commonly a macro that defines a function so ignore those
|
|
if ($has_flow_statement && !$has_arg_concat) {
|
|
my $cnt = statement_rawlines($ctx);
|
|
my $herectx = get_stat_here($linenr, $cnt, $here);
|
|
|
|
WARN("MACRO_WITH_FLOW_CONTROL",
|
|
"Macros with flow control statements should be avoided\n" . "$herectx");
|
|
}
|
|
|
|
# check for line continuations outside of #defines, preprocessor #, and asm
|
|
|
|
} else {
|
|
if ($prevline !~ /^..*\\$/ &&
|
|
$line !~ /^\+\s*\#.*\\$/ && # preprocessor
|
|
$line !~ /^\+.*\b(__asm__|asm)\b.*\\$/ && # asm
|
|
$line =~ /^\+.*\\$/) {
|
|
WARN("LINE_CONTINUATIONS",
|
|
"Avoid unnecessary line continuations\n" . $herecurr);
|
|
}
|
|
}
|
|
|
|
# do {} while (0) macro tests:
|
|
# single-statement macros do not need to be enclosed in do while (0) loop,
|
|
# macro should not end with a semicolon
|
|
if ($perl_version_ok &&
|
|
$realfile !~ m@/vmlinux.lds.h$@ &&
|
|
$line =~ /^.\s*\#\s*define\s+$Ident(\()?/) {
|
|
my $ln = $linenr;
|
|
my $cnt = $realcnt;
|
|
my ($off, $dstat, $dcond, $rest);
|
|
my $ctx = '';
|
|
($dstat, $dcond, $ln, $cnt, $off) =
|
|
ctx_statement_block($linenr, $realcnt, 0);
|
|
$ctx = $dstat;
|
|
|
|
$dstat =~ s/\\\n.//g;
|
|
$dstat =~ s/$;/ /g;
|
|
|
|
if ($dstat =~ /^\+\s*#\s*define\s+$Ident\s*${balanced_parens}\s*do\s*{(.*)\s*}\s*while\s*\(\s*0\s*\)\s*([;\s]*)\s*$/) {
|
|
my $stmts = $2;
|
|
my $semis = $3;
|
|
|
|
$ctx =~ s/\n*$//;
|
|
my $cnt = statement_rawlines($ctx);
|
|
my $herectx = get_stat_here($linenr, $cnt, $here);
|
|
|
|
if (($stmts =~ tr/;/;/) == 1 &&
|
|
$stmts !~ /^\s*(if|while|for|switch)\b/) {
|
|
WARN("SINGLE_STATEMENT_DO_WHILE_MACRO",
|
|
"Single statement macros should not use a do {} while (0) loop\n" . "$herectx");
|
|
}
|
|
if (defined $semis && $semis ne "") {
|
|
WARN("DO_WHILE_MACRO_WITH_TRAILING_SEMICOLON",
|
|
"do {} while (0) macros should not be semicolon terminated\n" . "$herectx");
|
|
}
|
|
} elsif ($dstat =~ /^\+\s*#\s*define\s+$Ident.*;\s*$/) {
|
|
$ctx =~ s/\n*$//;
|
|
my $cnt = statement_rawlines($ctx);
|
|
my $herectx = get_stat_here($linenr, $cnt, $here);
|
|
|
|
WARN("TRAILING_SEMICOLON",
|
|
"macros should not use a trailing semicolon\n" . "$herectx");
|
|
}
|
|
}
|
|
|
|
# check for redundant bracing round if etc
|
|
if ($line =~ /(^.*)\bif\b/ && $1 !~ /else\s*$/) {
|
|
my ($level, $endln, @chunks) =
|
|
ctx_statement_full($linenr, $realcnt, 1);
|
|
#print "chunks<$#chunks> linenr<$linenr> endln<$endln> level<$level>\n";
|
|
#print "APW: <<$chunks[1][0]>><<$chunks[1][1]>>\n";
|
|
if ($#chunks > 0 && $level == 0) {
|
|
my @allowed = ();
|
|
my $allow = 0;
|
|
my $seen = 0;
|
|
my $herectx = $here . "\n";
|
|
my $ln = $linenr - 1;
|
|
for my $chunk (@chunks) {
|
|
my ($cond, $block) = @{$chunk};
|
|
|
|
# If the condition carries leading newlines, then count those as offsets.
|
|
my ($whitespace) = ($cond =~ /^((?:\s*\n[+-])*\s*)/s);
|
|
my $offset = statement_rawlines($whitespace) - 1;
|
|
|
|
$allowed[$allow] = 0;
|
|
#print "COND<$cond> whitespace<$whitespace> offset<$offset>\n";
|
|
|
|
# We have looked at and allowed this specific line.
|
|
$suppress_ifbraces{$ln + $offset} = 1;
|
|
|
|
$herectx .= "$rawlines[$ln + $offset]\n[...]\n";
|
|
$ln += statement_rawlines($block) - 1;
|
|
|
|
substr($block, 0, length($cond), '');
|
|
|
|
$seen++ if ($block =~ /^\s*{/);
|
|
|
|
#print "cond<$cond> block<$block> allowed<$allowed[$allow]>\n";
|
|
if (statement_lines($cond) > 1) {
|
|
#print "APW: ALLOWED: cond<$cond>\n";
|
|
$allowed[$allow] = 1;
|
|
}
|
|
if ($block =~/\b(?:if|for|while)\b/) {
|
|
#print "APW: ALLOWED: block<$block>\n";
|
|
$allowed[$allow] = 1;
|
|
}
|
|
if (statement_block_size($block) > 1) {
|
|
#print "APW: ALLOWED: lines block<$block>\n";
|
|
$allowed[$allow] = 1;
|
|
}
|
|
$allow++;
|
|
}
|
|
if ($seen) {
|
|
my $sum_allowed = 0;
|
|
foreach (@allowed) {
|
|
$sum_allowed += $_;
|
|
}
|
|
if ($sum_allowed == 0) {
|
|
WARN("BRACES",
|
|
"braces {} are not necessary for any arm of this statement\n" . $herectx);
|
|
} elsif ($sum_allowed != $allow &&
|
|
$seen != $allow) {
|
|
CHK("BRACES",
|
|
"braces {} should be used on all arms of this statement\n" . $herectx);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (!defined $suppress_ifbraces{$linenr - 1} &&
|
|
$line =~ /\b(if|while|for|else)\b/) {
|
|
my $allowed = 0;
|
|
|
|
# Check the pre-context.
|
|
if (substr($line, 0, $-[0]) =~ /(\}\s*)$/) {
|
|
#print "APW: ALLOWED: pre<$1>\n";
|
|
$allowed = 1;
|
|
}
|
|
|
|
my ($level, $endln, @chunks) =
|
|
ctx_statement_full($linenr, $realcnt, $-[0]);
|
|
|
|
# Check the condition.
|
|
my ($cond, $block) = @{$chunks[0]};
|
|
#print "CHECKING<$linenr> cond<$cond> block<$block>\n";
|
|
if (defined $cond) {
|
|
substr($block, 0, length($cond), '');
|
|
}
|
|
if (statement_lines($cond) > 1) {
|
|
#print "APW: ALLOWED: cond<$cond>\n";
|
|
$allowed = 1;
|
|
}
|
|
if ($block =~/\b(?:if|for|while)\b/) {
|
|
#print "APW: ALLOWED: block<$block>\n";
|
|
$allowed = 1;
|
|
}
|
|
if (statement_block_size($block) > 1) {
|
|
#print "APW: ALLOWED: lines block<$block>\n";
|
|
$allowed = 1;
|
|
}
|
|
# Check the post-context.
|
|
if (defined $chunks[1]) {
|
|
my ($cond, $block) = @{$chunks[1]};
|
|
if (defined $cond) {
|
|
substr($block, 0, length($cond), '');
|
|
}
|
|
if ($block =~ /^\s*\{/) {
|
|
#print "APW: ALLOWED: chunk-1 block<$block>\n";
|
|
$allowed = 1;
|
|
}
|
|
}
|
|
if ($level == 0 && $block =~ /^\s*\{/ && !$allowed) {
|
|
my $cnt = statement_rawlines($block);
|
|
my $herectx = get_stat_here($linenr, $cnt, $here);
|
|
|
|
WARN("BRACES",
|
|
"braces {} are not necessary for single statement blocks\n" . $herectx);
|
|
}
|
|
}
|
|
|
|
# check for single line unbalanced braces
|
|
if ($sline =~ /^.\s*\}\s*else\s*$/ ||
|
|
$sline =~ /^.\s*else\s*\{\s*$/) {
|
|
CHK("BRACES", "Unbalanced braces around else statement\n" . $herecurr);
|
|
}
|
|
|
|
# check for unnecessary blank lines around braces
|
|
if (($line =~ /^.\s*}\s*$/ && $prevrawline =~ /^.\s*$/)) {
|
|
if (CHK("BRACES",
|
|
"Blank lines aren't necessary before a close brace '}'\n" . $hereprev) &&
|
|
$fix && $prevrawline =~ /^\+/) {
|
|
fix_delete_line($fixlinenr - 1, $prevrawline);
|
|
}
|
|
}
|
|
if (($rawline =~ /^.\s*$/ && $prevline =~ /^..*{\s*$/)) {
|
|
if (CHK("BRACES",
|
|
"Blank lines aren't necessary after an open brace '{'\n" . $hereprev) &&
|
|
$fix) {
|
|
fix_delete_line($fixlinenr, $rawline);
|
|
}
|
|
}
|
|
|
|
# no volatiles please
|
|
my $asm_volatile = qr{\b(__asm__|asm)\s+(__volatile__|volatile)\b};
|
|
if ($line =~ /\bvolatile\b/ && $line !~ /$asm_volatile/) {
|
|
WARN("VOLATILE",
|
|
"Use of volatile is usually wrong: see Documentation/process/volatile-considered-harmful.rst\n" . $herecurr);
|
|
}
|
|
|
|
# Check for user-visible strings broken across lines, which breaks the ability
|
|
# to grep for the string. Make exceptions when the previous string ends in a
|
|
# newline (multiple lines in one string constant) or '\t', '\r', ';', or '{'
|
|
# (common in inline assembly) or is a octal \123 or hexadecimal \xaf value
|
|
if ($line =~ /^\+\s*$String/ &&
|
|
$prevline =~ /"\s*$/ &&
|
|
$prevrawline !~ /(?:\\(?:[ntr]|[0-7]{1,3}|x[0-9a-fA-F]{1,2})|;\s*|\{\s*)"\s*$/) {
|
|
if (WARN("SPLIT_STRING",
|
|
"quoted string split across lines\n" . $hereprev) &&
|
|
$fix &&
|
|
$prevrawline =~ /^\+.*"\s*$/ &&
|
|
$last_coalesced_string_linenr != $linenr - 1) {
|
|
my $extracted_string = get_quoted_string($line, $rawline);
|
|
my $comma_close = "";
|
|
if ($rawline =~ /\Q$extracted_string\E(\s*\)\s*;\s*$|\s*,\s*)/) {
|
|
$comma_close = $1;
|
|
}
|
|
|
|
fix_delete_line($fixlinenr - 1, $prevrawline);
|
|
fix_delete_line($fixlinenr, $rawline);
|
|
my $fixedline = $prevrawline;
|
|
$fixedline =~ s/"\s*$//;
|
|
$fixedline .= substr($extracted_string, 1) . trim($comma_close);
|
|
fix_insert_line($fixlinenr - 1, $fixedline);
|
|
$fixedline = $rawline;
|
|
$fixedline =~ s/\Q$extracted_string\E\Q$comma_close\E//;
|
|
if ($fixedline !~ /\+\s*$/) {
|
|
fix_insert_line($fixlinenr, $fixedline);
|
|
}
|
|
$last_coalesced_string_linenr = $linenr;
|
|
}
|
|
}
|
|
|
|
# check for missing a space in a string concatenation
|
|
if ($prevrawline =~ /[^\\]\w"$/ && $rawline =~ /^\+[\t ]+"\w/) {
|
|
WARN('MISSING_SPACE',
|
|
"break quoted strings at a space character\n" . $hereprev);
|
|
}
|
|
|
|
# check for an embedded function name in a string when the function is known
|
|
# This does not work very well for -f --file checking as it depends on patch
|
|
# context providing the function name or a single line form for in-file
|
|
# function declarations
|
|
if ($line =~ /^\+.*$String/ &&
|
|
defined($context_function) &&
|
|
get_quoted_string($line, $rawline) =~ /\b$context_function\b/ &&
|
|
length(get_quoted_string($line, $rawline)) != (length($context_function) + 2)) {
|
|
WARN("EMBEDDED_FUNCTION_NAME",
|
|
"Prefer using '\"%s...\", __func__' to using '$context_function', this function's name, in a string\n" . $herecurr);
|
|
}
|
|
|
|
# check for spaces before a quoted newline
|
|
if ($rawline =~ /^.*\".*\s\\n/) {
|
|
if (WARN("QUOTED_WHITESPACE_BEFORE_NEWLINE",
|
|
"unnecessary whitespace before a quoted newline\n" . $herecurr) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =~ s/^(\+.*\".*)\s+\\n/$1\\n/;
|
|
}
|
|
|
|
}
|
|
|
|
# concatenated string without spaces between elements
|
|
if ($line =~ /$String[A-Za-z0-9_]/ || $line =~ /[A-Za-z0-9_]$String/) {
|
|
if (CHK("CONCATENATED_STRING",
|
|
"Concatenated strings should use spaces between elements\n" . $herecurr) &&
|
|
$fix) {
|
|
while ($line =~ /($String)/g) {
|
|
my $extracted_string = substr($rawline, $-[0], $+[0] - $-[0]);
|
|
$fixed[$fixlinenr] =~ s/\Q$extracted_string\E([A-Za-z0-9_])/$extracted_string $1/;
|
|
$fixed[$fixlinenr] =~ s/([A-Za-z0-9_])\Q$extracted_string\E/$1 $extracted_string/;
|
|
}
|
|
}
|
|
}
|
|
|
|
# uncoalesced string fragments
|
|
if ($line =~ /$String\s*"/) {
|
|
if (WARN("STRING_FRAGMENTS",
|
|
"Consecutive strings are generally better as a single string\n" . $herecurr) &&
|
|
$fix) {
|
|
while ($line =~ /($String)(?=\s*")/g) {
|
|
my $extracted_string = substr($rawline, $-[0], $+[0] - $-[0]);
|
|
$fixed[$fixlinenr] =~ s/\Q$extracted_string\E\s*"/substr($extracted_string, 0, -1)/e;
|
|
}
|
|
}
|
|
}
|
|
|
|
# check for non-standard and hex prefixed decimal printf formats
|
|
my $show_L = 1; #don't show the same defect twice
|
|
my $show_Z = 1;
|
|
while ($line =~ /(?:^|")([X\t]*)(?:"|$)/g) {
|
|
my $string = substr($rawline, $-[1], $+[1] - $-[1]);
|
|
$string =~ s/%%/__/g;
|
|
# check for %L
|
|
if ($show_L && $string =~ /%[\*\d\.\$]*L([diouxX])/) {
|
|
WARN("PRINTF_L",
|
|
"\%L$1 is non-standard C, use %ll$1\n" . $herecurr);
|
|
$show_L = 0;
|
|
}
|
|
# check for %Z
|
|
if ($show_Z && $string =~ /%[\*\d\.\$]*Z([diouxX])/) {
|
|
WARN("PRINTF_Z",
|
|
"%Z$1 is non-standard C, use %z$1\n" . $herecurr);
|
|
$show_Z = 0;
|
|
}
|
|
# check for 0x<decimal>
|
|
if ($string =~ /0x%[\*\d\.\$\Llzth]*[diou]/) {
|
|
ERROR("PRINTF_0XDECIMAL",
|
|
"Prefixing 0x with decimal output is defective\n" . $herecurr);
|
|
}
|
|
}
|
|
|
|
# check for line continuations in quoted strings with odd counts of "
|
|
if ($rawline =~ /\\$/ && $sline =~ tr/"/"/ % 2) {
|
|
WARN("LINE_CONTINUATIONS",
|
|
"Avoid line continuations in quoted strings\n" . $herecurr);
|
|
}
|
|
|
|
# sys_open/read/write/close are not allowed in the kernel
|
|
if ($line =~ /\b(sys_(?:open|read|write|close))\b/) {
|
|
ERROR("FILE_OPS",
|
|
"$1 is inappropriate in kernel code.\n" .
|
|
$herecurr);
|
|
}
|
|
|
|
# filp_open is a backdoor for sys_open
|
|
if ($line =~ /\b(filp_open)\b/) {
|
|
ERROR("FILE_OPS",
|
|
"$1 is inappropriate in kernel code.\n" .
|
|
$herecurr);
|
|
}
|
|
|
|
# read[bwl] & write[bwl] use too many barriers, use the _relaxed variants
|
|
if ($line =~ /\b((?:read|write)[bwl])\b/) {
|
|
ERROR("NON_RELAXED_IO",
|
|
"Use of $1 is deprecated: use $1_relaxed\n\t" .
|
|
"with appropriate memory barriers instead.\n" .
|
|
$herecurr);
|
|
}
|
|
|
|
# likewise, in/out[bwl] should be __raw_read/write[bwl]...
|
|
if ($line =~ /\b((in|out)([bwl]))\b/) {
|
|
my ($all, $pref, $suf) = ($1, $2, $3);
|
|
$pref =~ s/in/read/;
|
|
$pref =~ s/out/write/;
|
|
ERROR("NON_RELAXED_IO",
|
|
"Use of $all is deprecated: use " .
|
|
"__raw_$pref$suf\n\t" .
|
|
"with appropriate memory barriers instead.\n" .
|
|
$herecurr);
|
|
}
|
|
|
|
# dsb is too ARMish, and should usually be mb.
|
|
if ($line =~ /[^-_>*\.]\bdsb\b[^-_\.;]/) {
|
|
WARN("ARM_BARRIER",
|
|
"Use of dsb is discouranged: prefer mb.\n" .
|
|
$herecurr);
|
|
}
|
|
|
|
# unbounded string functions are overflow risks
|
|
my %str_fns = (
|
|
"sprintf" => "snprintf",
|
|
"strcpy" => "strlcpy",
|
|
"strncpy" => "strlcpy",
|
|
"strcat" => "strlcat",
|
|
"strncat" => "strlcat",
|
|
"vsprintf" => "vsnprintf",
|
|
"strchr" => "strnchr",
|
|
"strstr" => "strnstr",
|
|
);
|
|
foreach my $k (keys %str_fns) {
|
|
if ($line =~ /\b$k\b/) {
|
|
ERROR("UNBOUNDED_STRING_FNS",
|
|
"Use of $k is deprecated: " .
|
|
"use $str_fns{$k} instead.\n" .
|
|
$herecurr);
|
|
}
|
|
}
|
|
|
|
# warn about #if 0
|
|
if ($line =~ /^.\s*\#\s*if\s+0\b/) {
|
|
WARN("IF_0",
|
|
"Consider removing the code enclosed by this #if 0 and its #endif\n" . $herecurr);
|
|
}
|
|
|
|
# warn about #if 1
|
|
if ($line =~ /^.\s*\#\s*if\s+1\b/) {
|
|
WARN("IF_1",
|
|
"Consider removing the #if 1 and its #endif\n" . $herecurr);
|
|
}
|
|
|
|
# check for needless "if (<foo>) fn(<foo>)" uses
|
|
if ($prevline =~ /\bif\s*\(\s*($Lval)\s*\)/) {
|
|
my $tested = quotemeta($1);
|
|
my $expr = '\s*\(\s*' . $tested . '\s*\)\s*;';
|
|
if ($line =~ /\b(kfree|usb_free_urb|debugfs_remove(?:_recursive)?|(?:kmem_cache|mempool|dma_pool)_destroy)$expr/) {
|
|
my $func = $1;
|
|
if (WARN('NEEDLESS_IF',
|
|
"$func(NULL) is safe and this check is probably not required\n" . $hereprev) &&
|
|
$fix) {
|
|
my $do_fix = 1;
|
|
my $leading_tabs = "";
|
|
my $new_leading_tabs = "";
|
|
if ($lines[$linenr - 2] =~ /^\+(\t*)if\s*\(\s*$tested\s*\)\s*$/) {
|
|
$leading_tabs = $1;
|
|
} else {
|
|
$do_fix = 0;
|
|
}
|
|
if ($lines[$linenr - 1] =~ /^\+(\t+)$func\s*\(\s*$tested\s*\)\s*;\s*$/) {
|
|
$new_leading_tabs = $1;
|
|
if (length($leading_tabs) + 1 ne length($new_leading_tabs)) {
|
|
$do_fix = 0;
|
|
}
|
|
} else {
|
|
$do_fix = 0;
|
|
}
|
|
if ($do_fix) {
|
|
fix_delete_line($fixlinenr - 1, $prevrawline);
|
|
$fixed[$fixlinenr] =~ s/^\+$new_leading_tabs/\+$leading_tabs/;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
# check for unnecessary "Out of Memory" messages
|
|
if ($line =~ /^\+.*\b$logFunctions\s*\(/ &&
|
|
$prevline =~ /^[ \+]\s*if\s*\(\s*(\!\s*|NULL\s*==\s*)?($Lval)(\s*==\s*NULL\s*)?\s*\)/ &&
|
|
(defined $1 || defined $3) &&
|
|
$linenr > 3) {
|
|
my $testval = $2;
|
|
my $testline = $lines[$linenr - 3];
|
|
|
|
my ($s, $c) = ctx_statement_block($linenr - 3, $realcnt, 0);
|
|
# print("line: <$line>\nprevline: <$prevline>\ns: <$s>\nc: <$c>\n\n\n");
|
|
|
|
if ($s =~ /(?:^|\n)[ \+]\s*(?:$Type\s*)?\Q$testval\E\s*=\s*(?:\([^\)]*\)\s*)?\s*(?:devm_)?(?:[kv][czm]alloc(?:_node|_array)?\b|kstrdup|kmemdup|(?:dev_)?alloc_skb)/) {
|
|
WARN("OOM_MESSAGE",
|
|
"Possible unnecessary 'out of memory' message\n" . $hereprev);
|
|
}
|
|
}
|
|
|
|
# check for logging functions with KERN_<LEVEL>
|
|
if ($line !~ /printk(?:_ratelimited|_once)?\s*\(/ &&
|
|
$line =~ /\b$logFunctions\s*\(.*\b(KERN_[A-Z]+)\b/) {
|
|
my $level = $1;
|
|
if (WARN("UNNECESSARY_KERN_LEVEL",
|
|
"Possible unnecessary $level\n" . $herecurr) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =~ s/\s*$level\s*//;
|
|
}
|
|
}
|
|
|
|
# check for logging continuations
|
|
if ($line =~ /\bprintk\s*\(\s*KERN_CONT\b|\bpr_cont\s*\(/) {
|
|
WARN("LOGGING_CONTINUATION",
|
|
"Avoid logging continuation uses where feasible\n" . $herecurr);
|
|
}
|
|
|
|
# check for mask then right shift without a parentheses
|
|
if ($perl_version_ok &&
|
|
$line =~ /$LvalOrFunc\s*\&\s*($LvalOrFunc)\s*>>/ &&
|
|
$4 !~ /^\&/) { # $LvalOrFunc may be &foo, ignore if so
|
|
WARN("MASK_THEN_SHIFT",
|
|
"Possible precedence defect with mask then right shift - may need parentheses\n" . $herecurr);
|
|
}
|
|
|
|
# check for pointer comparisons to NULL
|
|
if ($perl_version_ok) {
|
|
while ($line =~ /\b$LvalOrFunc\s*(==|\!=)\s*NULL\b/g) {
|
|
my $val = $1;
|
|
my $equal = "!";
|
|
$equal = "" if ($4 eq "!=");
|
|
if (CHK("COMPARISON_TO_NULL",
|
|
"Comparison to NULL could be written \"${equal}${val}\"\n" . $herecurr) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =~ s/\b\Q$val\E\s*(?:==|\!=)\s*NULL\b/$equal$val/;
|
|
}
|
|
}
|
|
}
|
|
|
|
# check for bad placement of section $InitAttribute (e.g.: __initdata)
|
|
if ($line =~ /(\b$InitAttribute\b)/) {
|
|
my $attr = $1;
|
|
if ($line =~ /^\+\s*static\s+(?:const\s+)?(?:$attr\s+)?($NonptrTypeWithAttr)\s+(?:$attr\s+)?($Ident(?:\[[^]]*\])?)\s*[=;]/) {
|
|
my $ptr = $1;
|
|
my $var = $2;
|
|
if ((($ptr =~ /\b(union|struct)\s+$attr\b/ &&
|
|
ERROR("MISPLACED_INIT",
|
|
"$attr should be placed after $var\n" . $herecurr)) ||
|
|
($ptr !~ /\b(union|struct)\s+$attr\b/ &&
|
|
WARN("MISPLACED_INIT",
|
|
"$attr should be placed after $var\n" . $herecurr))) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =~ s/(\bstatic\s+(?:const\s+)?)(?:$attr\s+)?($NonptrTypeWithAttr)\s+(?:$attr\s+)?($Ident(?:\[[^]]*\])?)\s*([=;])\s*/"$1" . trim(string_find_replace($2, "\\s*$attr\\s*", " ")) . " " . trim(string_find_replace($3, "\\s*$attr\\s*", "")) . " $attr" . ("$4" eq ";" ? ";" : " = ")/e;
|
|
}
|
|
}
|
|
}
|
|
|
|
# check for $InitAttributeData (ie: __initdata) with const
|
|
if ($line =~ /\bconst\b/ && $line =~ /($InitAttributeData)/) {
|
|
my $attr = $1;
|
|
$attr =~ /($InitAttributePrefix)(.*)/;
|
|
my $attr_prefix = $1;
|
|
my $attr_type = $2;
|
|
if (ERROR("INIT_ATTRIBUTE",
|
|
"Use of const init definition must use ${attr_prefix}initconst\n" . $herecurr) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =~
|
|
s/$InitAttributeData/${attr_prefix}initconst/;
|
|
}
|
|
}
|
|
|
|
# check for $InitAttributeConst (ie: __initconst) without const
|
|
if ($line !~ /\bconst\b/ && $line =~ /($InitAttributeConst)/) {
|
|
my $attr = $1;
|
|
if (ERROR("INIT_ATTRIBUTE",
|
|
"Use of $attr requires a separate use of const\n" . $herecurr) &&
|
|
$fix) {
|
|
my $lead = $fixed[$fixlinenr] =~
|
|
/(^\+\s*(?:static\s+))/;
|
|
$lead = rtrim($1);
|
|
$lead = "$lead " if ($lead !~ /^\+$/);
|
|
$lead = "${lead}const ";
|
|
$fixed[$fixlinenr] =~ s/(^\+\s*(?:static\s+))/$lead/;
|
|
}
|
|
}
|
|
|
|
# check for __read_mostly with const non-pointer (should just be const)
|
|
if ($line =~ /\b__read_mostly\b/ &&
|
|
$line =~ /($Type)\s*$Ident/ && $1 !~ /\*\s*$/ && $1 =~ /\bconst\b/) {
|
|
if (ERROR("CONST_READ_MOSTLY",
|
|
"Invalid use of __read_mostly with const type\n" . $herecurr) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =~ s/\s+__read_mostly\b//;
|
|
}
|
|
}
|
|
|
|
# don't use __constant_<foo> functions outside of include/uapi/
|
|
if ($realfile !~ m@^include/uapi/@ &&
|
|
$line =~ /(__constant_(?:htons|ntohs|[bl]e(?:16|32|64)_to_cpu|cpu_to_[bl]e(?:16|32|64)))\s*\(/) {
|
|
my $constant_func = $1;
|
|
my $func = $constant_func;
|
|
$func =~ s/^__constant_//;
|
|
if (WARN("CONSTANT_CONVERSION",
|
|
"$constant_func should be $func\n" . $herecurr) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =~ s/\b$constant_func\b/$func/g;
|
|
}
|
|
}
|
|
|
|
# prefer usleep_range over udelay
|
|
if ($line =~ /\budelay\s*\(\s*(\d+)\s*\)/) {
|
|
my $delay = $1;
|
|
# ignore udelay's < 10, however
|
|
if (! ($delay < 10) ) {
|
|
CHK("USLEEP_RANGE",
|
|
"usleep_range is preferred over udelay; see Documentation/timers/timers-howto.txt\n" . $herecurr);
|
|
}
|
|
if ($delay > 2000) {
|
|
WARN("LONG_UDELAY",
|
|
"long udelay - prefer mdelay; see arch/arm/include/asm/delay.h\n" . $herecurr);
|
|
}
|
|
}
|
|
|
|
# warn about unexpectedly long msleep's
|
|
if ($line =~ /\bmsleep\s*\((\d+)\);/) {
|
|
if ($1 < 20) {
|
|
WARN("MSLEEP",
|
|
"msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt\n" . $herecurr);
|
|
}
|
|
}
|
|
|
|
# check for comparisons of jiffies
|
|
if ($line =~ /\bjiffies\s*$Compare|$Compare\s*jiffies\b/) {
|
|
WARN("JIFFIES_COMPARISON",
|
|
"Comparing jiffies is almost always wrong; prefer time_after, time_before and friends\n" . $herecurr);
|
|
}
|
|
|
|
# check for comparisons of get_jiffies_64()
|
|
if ($line =~ /\bget_jiffies_64\s*\(\s*\)\s*$Compare|$Compare\s*get_jiffies_64\s*\(\s*\)/) {
|
|
WARN("JIFFIES_COMPARISON",
|
|
"Comparing get_jiffies_64() is almost always wrong; prefer time_after64, time_before64 and friends\n" . $herecurr);
|
|
}
|
|
|
|
# check the patch for use of mdelay
|
|
if ($line =~ /\bmdelay\s*\(/) {
|
|
WARN("MDELAY",
|
|
"use of mdelay() found: msleep() is the preferred API.\n" . $herecurr );
|
|
}
|
|
|
|
# warn about #ifdefs in C files
|
|
# if ($line =~ /^.\s*\#\s*if(|n)def/ && ($realfile =~ /\.c$/)) {
|
|
# print "#ifdef in C files should be avoided\n";
|
|
# print "$herecurr";
|
|
# $clean = 0;
|
|
# }
|
|
|
|
# warn about spacing in #ifdefs
|
|
if ($line =~ /^.\s*\#\s*(ifdef|ifndef|elif)\s\s+/) {
|
|
if (ERROR("SPACING",
|
|
"exactly one space required after that #$1\n" . $herecurr) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =~
|
|
s/^(.\s*\#\s*(ifdef|ifndef|elif))\s{2,}/$1 /;
|
|
}
|
|
|
|
}
|
|
|
|
# check for spinlock_t definitions without a comment.
|
|
if ($line =~ /^.\s*(struct\s+mutex|spinlock_t)\s+\S+;/ ||
|
|
$line =~ /^.\s*(DEFINE_MUTEX)\s*\(/) {
|
|
my $which = $1;
|
|
if (!ctx_has_comment($first_line, $linenr)) {
|
|
CHK("UNCOMMENTED_DEFINITION",
|
|
"$1 definition without comment\n" . $herecurr);
|
|
}
|
|
}
|
|
# check for memory barriers without a comment.
|
|
|
|
my $barriers = qr{
|
|
mb|
|
|
rmb|
|
|
wmb|
|
|
read_barrier_depends
|
|
}x;
|
|
my $barrier_stems = qr{
|
|
mb__before_atomic|
|
|
mb__after_atomic|
|
|
store_release|
|
|
load_acquire|
|
|
store_mb|
|
|
(?:$barriers)
|
|
}x;
|
|
my $all_barriers = qr{
|
|
(?:$barriers)|
|
|
smp_(?:$barrier_stems)|
|
|
virt_(?:$barrier_stems)
|
|
}x;
|
|
|
|
if ($line =~ /\b(?:$all_barriers)\s*\(/) {
|
|
if (!ctx_has_comment($first_line, $linenr)) {
|
|
WARN("MEMORY_BARRIER",
|
|
"memory barrier without comment\n" . $herecurr);
|
|
}
|
|
}
|
|
|
|
my $underscore_smp_barriers = qr{__smp_(?:$barrier_stems)}x;
|
|
|
|
if ($realfile !~ m@^include/asm-generic/@ &&
|
|
$realfile !~ m@/barrier\.h$@ &&
|
|
$line =~ m/\b(?:$underscore_smp_barriers)\s*\(/ &&
|
|
$line !~ m/^.\s*\#\s*define\s+(?:$underscore_smp_barriers)\s*\(/) {
|
|
WARN("MEMORY_BARRIER",
|
|
"__smp memory barriers shouldn't be used outside barrier.h and asm-generic\n" . $herecurr);
|
|
}
|
|
|
|
# check for waitqueue_active without a comment.
|
|
if ($line =~ /\bwaitqueue_active\s*\(/) {
|
|
if (!ctx_has_comment($first_line, $linenr)) {
|
|
WARN("WAITQUEUE_ACTIVE",
|
|
"waitqueue_active without comment\n" . $herecurr);
|
|
}
|
|
}
|
|
|
|
# check for smp_read_barrier_depends and read_barrier_depends
|
|
if (!$file && $line =~ /\b(smp_|)read_barrier_depends\s*\(/) {
|
|
WARN("READ_BARRIER_DEPENDS",
|
|
"$1read_barrier_depends should only be used in READ_ONCE or DEC Alpha code\n" . $herecurr);
|
|
}
|
|
|
|
# check of hardware specific defines
|
|
if ($line =~ m@^.\s*\#\s*if.*\b(__i386__|__powerpc64__|__sun__|__s390x__)\b@ && $realfile !~ m@include/asm-@) {
|
|
CHK("ARCH_DEFINES",
|
|
"architecture specific defines should be avoided\n" . $herecurr);
|
|
}
|
|
|
|
# check that the storage class is not after a type
|
|
if ($line =~ /\b($Type)\s+($Storage)\b/) {
|
|
WARN("STORAGE_CLASS",
|
|
"storage class '$2' should be located before type '$1'\n" . $herecurr);
|
|
}
|
|
# Check that the storage class is at the beginning of a declaration
|
|
if ($line =~ /\b$Storage\b/ &&
|
|
$line !~ /^.\s*$Storage/ &&
|
|
$line =~ /^.\s*(.+?)\$Storage\s/ &&
|
|
$1 !~ /[\,\)]\s*$/) {
|
|
WARN("STORAGE_CLASS",
|
|
"storage class should be at the beginning of the declaration\n" . $herecurr);
|
|
}
|
|
|
|
# check the location of the inline attribute, that it is between
|
|
# storage class and type.
|
|
if ($line =~ /\b$Type\s+$Inline\b/ ||
|
|
$line =~ /\b$Inline\s+$Storage\b/) {
|
|
ERROR("INLINE_LOCATION",
|
|
"inline keyword should sit between storage class and type\n" . $herecurr);
|
|
}
|
|
|
|
# Check for __inline__ and __inline, prefer inline
|
|
if ($realfile !~ m@\binclude/uapi/@ &&
|
|
$line =~ /\b(__inline__|__inline)\b/) {
|
|
if (WARN("INLINE",
|
|
"plain inline is preferred over $1\n" . $herecurr) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =~ s/\b(__inline__|__inline)\b/inline/;
|
|
|
|
}
|
|
}
|
|
|
|
# Check for __attribute__ packed, prefer __packed
|
|
if ($realfile !~ m@\binclude/uapi/@ &&
|
|
$line =~ /\b__attribute__\s*\(\s*\(.*\bpacked\b/) {
|
|
WARN("PREFER_PACKED",
|
|
"__packed is preferred over __attribute__((packed))\n" . $herecurr);
|
|
}
|
|
|
|
# Check for __attribute__ aligned, prefer __aligned
|
|
if ($realfile !~ m@\binclude/uapi/@ &&
|
|
$line =~ /\b__attribute__\s*\(\s*\(.*aligned/) {
|
|
WARN("PREFER_ALIGNED",
|
|
"__aligned(size) is preferred over __attribute__((aligned(size)))\n" . $herecurr);
|
|
}
|
|
|
|
# Check for __attribute__ format(printf, prefer __printf
|
|
if ($realfile !~ m@\binclude/uapi/@ &&
|
|
$line =~ /\b__attribute__\s*\(\s*\(\s*format\s*\(\s*printf/) {
|
|
if (WARN("PREFER_PRINTF",
|
|
"__printf(string-index, first-to-check) is preferred over __attribute__((format(printf, string-index, first-to-check)))\n" . $herecurr) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =~ s/\b__attribute__\s*\(\s*\(\s*format\s*\(\s*printf\s*,\s*(.*)\)\s*\)\s*\)/"__printf(" . trim($1) . ")"/ex;
|
|
|
|
}
|
|
}
|
|
|
|
# Check for __attribute__ format(scanf, prefer __scanf
|
|
if ($realfile !~ m@\binclude/uapi/@ &&
|
|
$line =~ /\b__attribute__\s*\(\s*\(\s*format\s*\(\s*scanf\b/) {
|
|
if (WARN("PREFER_SCANF",
|
|
"__scanf(string-index, first-to-check) is preferred over __attribute__((format(scanf, string-index, first-to-check)))\n" . $herecurr) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =~ s/\b__attribute__\s*\(\s*\(\s*format\s*\(\s*scanf\s*,\s*(.*)\)\s*\)\s*\)/"__scanf(" . trim($1) . ")"/ex;
|
|
}
|
|
}
|
|
|
|
# Check for __attribute__ weak, or __weak declarations (may have link issues)
|
|
if ($perl_version_ok &&
|
|
$line =~ /(?:$Declare|$DeclareMisordered)\s*$Ident\s*$balanced_parens\s*(?:$Attribute)?\s*;/ &&
|
|
($line =~ /\b__attribute__\s*\(\s*\(.*\bweak\b/ ||
|
|
$line =~ /\b__weak\b/)) {
|
|
ERROR("WEAK_DECLARATION",
|
|
"Using weak declarations can have unintended link defects\n" . $herecurr);
|
|
}
|
|
|
|
# check for c99 types like uint8_t used outside of uapi/ and tools/
|
|
if ($realfile !~ m@\binclude/uapi/@ &&
|
|
$realfile !~ m@\btools/@ &&
|
|
$line =~ /\b($Declare)\s*$Ident\s*[=;,\[]/) {
|
|
my $type = $1;
|
|
if ($type =~ /\b($typeC99Typedefs)\b/) {
|
|
$type = $1;
|
|
my $kernel_type = 'u';
|
|
$kernel_type = 's' if ($type =~ /^_*[si]/);
|
|
$type =~ /(\d+)/;
|
|
$kernel_type .= $1;
|
|
if (CHK("PREFER_KERNEL_TYPES",
|
|
"Prefer kernel type '$kernel_type' over '$type'\n" . $herecurr) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =~ s/\b$type\b/$kernel_type/;
|
|
}
|
|
}
|
|
}
|
|
|
|
# check for cast of C90 native int or longer types constants
|
|
if ($line =~ /(\(\s*$C90_int_types\s*\)\s*)($Constant)\b/) {
|
|
my $cast = $1;
|
|
my $const = $2;
|
|
if (WARN("TYPECAST_INT_CONSTANT",
|
|
"Unnecessary typecast of c90 int constant\n" . $herecurr) &&
|
|
$fix) {
|
|
my $suffix = "";
|
|
my $newconst = $const;
|
|
$newconst =~ s/${Int_type}$//;
|
|
$suffix .= 'U' if ($cast =~ /\bunsigned\b/);
|
|
if ($cast =~ /\blong\s+long\b/) {
|
|
$suffix .= 'LL';
|
|
} elsif ($cast =~ /\blong\b/) {
|
|
$suffix .= 'L';
|
|
}
|
|
$fixed[$fixlinenr] =~ s/\Q$cast\E$const\b/$newconst$suffix/;
|
|
}
|
|
}
|
|
|
|
# check for sizeof(&)
|
|
if ($line =~ /\bsizeof\s*\(\s*\&/) {
|
|
WARN("SIZEOF_ADDRESS",
|
|
"sizeof(& should be avoided\n" . $herecurr);
|
|
}
|
|
|
|
# check for sizeof without parenthesis
|
|
if ($line =~ /\bsizeof\s+((?:\*\s*|)$Lval|$Type(?:\s+$Lval|))/) {
|
|
if (WARN("SIZEOF_PARENTHESIS",
|
|
"sizeof $1 should be sizeof($1)\n" . $herecurr) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =~ s/\bsizeof\s+((?:\*\s*|)$Lval|$Type(?:\s+$Lval|))/"sizeof(" . trim($1) . ")"/ex;
|
|
}
|
|
}
|
|
|
|
# check for struct spinlock declarations
|
|
if ($line =~ /^.\s*\bstruct\s+spinlock\s+\w+\s*;/) {
|
|
WARN("USE_SPINLOCK_T",
|
|
"struct spinlock should be spinlock_t\n" . $herecurr);
|
|
}
|
|
|
|
# check for seq_printf uses that could be seq_puts
|
|
if ($sline =~ /\bseq_printf\s*\(.*"\s*\)\s*;\s*$/) {
|
|
my $fmt = get_quoted_string($line, $rawline);
|
|
$fmt =~ s/%%//g;
|
|
if ($fmt !~ /%/) {
|
|
if (WARN("PREFER_SEQ_PUTS",
|
|
"Prefer seq_puts to seq_printf\n" . $herecurr) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =~ s/\bseq_printf\b/seq_puts/;
|
|
}
|
|
}
|
|
}
|
|
|
|
# check for vsprintf extension %p<foo> misuses
|
|
if ($perl_version_ok &&
|
|
defined $stat &&
|
|
$stat =~ /^\+(?![^\{]*\{\s*).*\b(\w+)\s*\(.*$String\s*,/s &&
|
|
$1 !~ /^_*volatile_*$/) {
|
|
my $stat_real;
|
|
|
|
my $lc = $stat =~ tr@\n@@;
|
|
$lc = $lc + $linenr;
|
|
for (my $count = $linenr; $count <= $lc; $count++) {
|
|
my $specifier;
|
|
my $extension;
|
|
my $bad_specifier = "";
|
|
my $fmt = get_quoted_string($lines[$count - 1], raw_line($count, 0));
|
|
$fmt =~ s/%%//g;
|
|
|
|
while ($fmt =~ /(\%[\*\d\.]*p(\w))/g) {
|
|
$specifier = $1;
|
|
$extension = $2;
|
|
if ($extension !~ /[SsBKRraEhMmIiUDdgVCbGNOx]/) {
|
|
$bad_specifier = $specifier;
|
|
last;
|
|
}
|
|
if ($extension eq "x" && !defined($stat_real)) {
|
|
if (!defined($stat_real)) {
|
|
$stat_real = get_stat_real($linenr, $lc);
|
|
}
|
|
WARN("VSPRINTF_SPECIFIER_PX",
|
|
"Using vsprintf specifier '\%px' potentially exposes the kernel memory layout, if you don't really need the address please consider using '\%p'.\n" . "$here\n$stat_real\n");
|
|
}
|
|
}
|
|
if ($bad_specifier ne "") {
|
|
my $stat_real = get_stat_real($linenr, $lc);
|
|
my $ext_type = "Invalid";
|
|
my $use = "";
|
|
if ($bad_specifier =~ /p[Ff]/) {
|
|
$ext_type = "Deprecated";
|
|
$use = " - use %pS instead";
|
|
$use =~ s/pS/ps/ if ($bad_specifier =~ /pf/);
|
|
}
|
|
|
|
WARN("VSPRINTF_POINTER_EXTENSION",
|
|
"$ext_type vsprintf pointer extension '$bad_specifier'$use\n" . "$here\n$stat_real\n");
|
|
}
|
|
}
|
|
}
|
|
|
|
# Check for misused memsets
|
|
if ($perl_version_ok &&
|
|
defined $stat &&
|
|
$stat =~ /^\+(?:.*?)\bmemset\s*\(\s*$FuncArg\s*,\s*$FuncArg\s*\,\s*$FuncArg\s*\)/) {
|
|
|
|
my $ms_addr = $2;
|
|
my $ms_val = $7;
|
|
my $ms_size = $12;
|
|
|
|
if ($ms_size =~ /^(0x|)0$/i) {
|
|
ERROR("MEMSET",
|
|
"memset to 0's uses 0 as the 2nd argument, not the 3rd\n" . "$here\n$stat\n");
|
|
} elsif ($ms_size =~ /^(0x|)1$/i) {
|
|
WARN("MEMSET",
|
|
"single byte memset is suspicious. Swapped 2nd/3rd argument?\n" . "$here\n$stat\n");
|
|
}
|
|
}
|
|
|
|
# Check for memcpy(foo, bar, ETH_ALEN) that could be ether_addr_copy(foo, bar)
|
|
# if ($perl_version_ok &&
|
|
# defined $stat &&
|
|
# $stat =~ /^\+(?:.*?)\bmemcpy\s*\(\s*$FuncArg\s*,\s*$FuncArg\s*\,\s*ETH_ALEN\s*\)/) {
|
|
# if (WARN("PREFER_ETHER_ADDR_COPY",
|
|
# "Prefer ether_addr_copy() over memcpy() if the Ethernet addresses are __aligned(2)\n" . "$here\n$stat\n") &&
|
|
# $fix) {
|
|
# $fixed[$fixlinenr] =~ s/\bmemcpy\s*\(\s*$FuncArg\s*,\s*$FuncArg\s*\,\s*ETH_ALEN\s*\)/ether_addr_copy($2, $7)/;
|
|
# }
|
|
# }
|
|
|
|
# Check for memcmp(foo, bar, ETH_ALEN) that could be ether_addr_equal*(foo, bar)
|
|
# if ($perl_version_ok &&
|
|
# defined $stat &&
|
|
# $stat =~ /^\+(?:.*?)\bmemcmp\s*\(\s*$FuncArg\s*,\s*$FuncArg\s*\,\s*ETH_ALEN\s*\)/) {
|
|
# WARN("PREFER_ETHER_ADDR_EQUAL",
|
|
# "Prefer ether_addr_equal() or ether_addr_equal_unaligned() over memcmp()\n" . "$here\n$stat\n")
|
|
# }
|
|
|
|
# check for memset(foo, 0x0, ETH_ALEN) that could be eth_zero_addr
|
|
# check for memset(foo, 0xFF, ETH_ALEN) that could be eth_broadcast_addr
|
|
# if ($perl_version_ok &&
|
|
# defined $stat &&
|
|
# $stat =~ /^\+(?:.*?)\bmemset\s*\(\s*$FuncArg\s*,\s*$FuncArg\s*\,\s*ETH_ALEN\s*\)/) {
|
|
#
|
|
# my $ms_val = $7;
|
|
#
|
|
# if ($ms_val =~ /^(?:0x|)0+$/i) {
|
|
# if (WARN("PREFER_ETH_ZERO_ADDR",
|
|
# "Prefer eth_zero_addr over memset()\n" . "$here\n$stat\n") &&
|
|
# $fix) {
|
|
# $fixed[$fixlinenr] =~ s/\bmemset\s*\(\s*$FuncArg\s*,\s*$FuncArg\s*,\s*ETH_ALEN\s*\)/eth_zero_addr($2)/;
|
|
# }
|
|
# } elsif ($ms_val =~ /^(?:0xff|255)$/i) {
|
|
# if (WARN("PREFER_ETH_BROADCAST_ADDR",
|
|
# "Prefer eth_broadcast_addr() over memset()\n" . "$here\n$stat\n") &&
|
|
# $fix) {
|
|
# $fixed[$fixlinenr] =~ s/\bmemset\s*\(\s*$FuncArg\s*,\s*$FuncArg\s*,\s*ETH_ALEN\s*\)/eth_broadcast_addr($2)/;
|
|
# }
|
|
# }
|
|
# }
|
|
|
|
# typecasts on min/max could be min_t/max_t
|
|
if ($perl_version_ok &&
|
|
defined $stat &&
|
|
$stat =~ /^\+(?:.*?)\b(min|max)\s*\(\s*$FuncArg\s*,\s*$FuncArg\s*\)/) {
|
|
if (defined $2 || defined $7) {
|
|
my $call = $1;
|
|
my $cast1 = deparenthesize($2);
|
|
my $arg1 = $3;
|
|
my $cast2 = deparenthesize($7);
|
|
my $arg2 = $8;
|
|
my $cast;
|
|
|
|
if ($cast1 ne "" && $cast2 ne "" && $cast1 ne $cast2) {
|
|
$cast = "$cast1 or $cast2";
|
|
} elsif ($cast1 ne "") {
|
|
$cast = $cast1;
|
|
} else {
|
|
$cast = $cast2;
|
|
}
|
|
WARN("MINMAX",
|
|
"$call() should probably be ${call}_t($cast, $arg1, $arg2)\n" . "$here\n$stat\n");
|
|
}
|
|
}
|
|
|
|
# check usleep_range arguments
|
|
if ($perl_version_ok &&
|
|
defined $stat &&
|
|
$stat =~ /^\+(?:.*?)\busleep_range\s*\(\s*($FuncArg)\s*,\s*($FuncArg)\s*\)/) {
|
|
my $min = $1;
|
|
my $max = $7;
|
|
if ($min eq $max) {
|
|
WARN("USLEEP_RANGE",
|
|
"usleep_range should not use min == max args; see Documentation/timers/timers-howto.txt\n" . "$here\n$stat\n");
|
|
} elsif ($min =~ /^\d+$/ && $max =~ /^\d+$/ &&
|
|
$min > $max) {
|
|
WARN("USLEEP_RANGE",
|
|
"usleep_range args reversed, use min then max; see Documentation/timers/timers-howto.txt\n" . "$here\n$stat\n");
|
|
}
|
|
}
|
|
|
|
# check for naked sscanf
|
|
if ($perl_version_ok &&
|
|
defined $stat &&
|
|
$line =~ /\bsscanf\b/ &&
|
|
($stat !~ /$Ident\s*=\s*sscanf\s*$balanced_parens/ &&
|
|
$stat !~ /\bsscanf\s*$balanced_parens\s*(?:$Compare)/ &&
|
|
$stat !~ /(?:$Compare)\s*\bsscanf\s*$balanced_parens/)) {
|
|
my $lc = $stat =~ tr@\n@@;
|
|
$lc = $lc + $linenr;
|
|
my $stat_real = get_stat_real($linenr, $lc);
|
|
WARN("NAKED_SSCANF",
|
|
"unchecked sscanf return value\n" . "$here\n$stat_real\n");
|
|
}
|
|
|
|
# check for simple sscanf that should be kstrto<foo>
|
|
if ($perl_version_ok &&
|
|
defined $stat &&
|
|
$line =~ /\bsscanf\b/) {
|
|
my $lc = $stat =~ tr@\n@@;
|
|
$lc = $lc + $linenr;
|
|
my $stat_real = get_stat_real($linenr, $lc);
|
|
if ($stat_real =~ /\bsscanf\b\s*\(\s*$FuncArg\s*,\s*("[^"]+")/) {
|
|
my $format = $6;
|
|
my $count = $format =~ tr@%@%@;
|
|
if ($count == 1 &&
|
|
$format =~ /^"\%(?i:ll[udxi]|[udxi]ll|ll|[hl]h?[udxi]|[udxi][hl]h?|[hl]h?|[udxi])"$/) {
|
|
WARN("SSCANF_TO_KSTRTO",
|
|
"Prefer kstrto<type> to single variable sscanf\n" . "$here\n$stat_real\n");
|
|
}
|
|
}
|
|
}
|
|
|
|
# check for new externs in .h files.
|
|
if ($realfile =~ /\.h$/ &&
|
|
$line =~ /^\+\s*(extern\s+)$Type\s*$Ident\s*\(/s) {
|
|
if (CHK("AVOID_EXTERNS",
|
|
"extern prototypes should be avoided in .h files\n" . $herecurr) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =~ s/(.*)\bextern\b\s*(.*)/$1$2/;
|
|
}
|
|
}
|
|
|
|
# check for new externs in .c files.
|
|
if ($realfile =~ /\.c$/ && defined $stat &&
|
|
$stat =~ /^.\s*(?:extern\s+)?$Type\s+($Ident)(\s*)\(/s)
|
|
{
|
|
my $function_name = $1;
|
|
my $paren_space = $2;
|
|
|
|
my $s = $stat;
|
|
if (defined $cond) {
|
|
substr($s, 0, length($cond), '');
|
|
}
|
|
if ($s =~ /^\s*;/ &&
|
|
$function_name ne 'uninitialized_var')
|
|
{
|
|
WARN("AVOID_EXTERNS",
|
|
"externs should be avoided in .c files\n" . $herecurr);
|
|
}
|
|
|
|
if ($paren_space =~ /\n/) {
|
|
WARN("FUNCTION_ARGUMENTS",
|
|
"arguments for function declarations should follow identifier\n" . $herecurr);
|
|
}
|
|
|
|
} elsif ($realfile =~ /\.c$/ && defined $stat &&
|
|
$stat =~ /^.\s*extern\s+/)
|
|
{
|
|
WARN("AVOID_EXTERNS",
|
|
"externs should be avoided in .c files\n" . $herecurr);
|
|
}
|
|
|
|
# check for function declarations that have arguments without identifier names
|
|
if (defined $stat &&
|
|
$stat =~ /^.\s*(?:extern\s+)?$Type\s*(?:$Ident|\(\s*\*\s*$Ident\s*\))\s*\(\s*([^{]+)\s*\)\s*;/s &&
|
|
$1 ne "void") {
|
|
my $args = trim($1);
|
|
while ($args =~ m/\s*($Type\s*(?:$Ident|\(\s*\*\s*$Ident?\s*\)\s*$balanced_parens)?)/g) {
|
|
my $arg = trim($1);
|
|
if ($arg =~ /^$Type$/ && $arg !~ /enum\s+$Ident$/) {
|
|
WARN("FUNCTION_ARGUMENTS",
|
|
"function definition argument '$arg' should also have an identifier name\n" . $herecurr);
|
|
}
|
|
}
|
|
}
|
|
|
|
# check for function definitions
|
|
if ($perl_version_ok &&
|
|
defined $stat &&
|
|
$stat =~ /^.\s*(?:$Storage\s+)?$Type\s*($Ident)\s*$balanced_parens\s*{/s) {
|
|
$context_function = $1;
|
|
|
|
# check for multiline function definition with misplaced open brace
|
|
my $ok = 0;
|
|
my $cnt = statement_rawlines($stat);
|
|
my $herectx = $here . "\n";
|
|
for (my $n = 0; $n < $cnt; $n++) {
|
|
my $rl = raw_line($linenr, $n);
|
|
$herectx .= $rl . "\n";
|
|
$ok = 1 if ($rl =~ /^[ \+]\{/);
|
|
$ok = 1 if ($rl =~ /\{/ && $n == 0);
|
|
last if $rl =~ /^[ \+].*\{/;
|
|
}
|
|
if (!$ok) {
|
|
ERROR("OPEN_BRACE",
|
|
"open brace '{' following function definitions go on the next line\n" . $herectx);
|
|
}
|
|
}
|
|
|
|
# checks for new __setup's
|
|
if ($rawline =~ /\b__setup\("([^"]*)"/) {
|
|
my $name = $1;
|
|
|
|
if (!grep(/$name/, @setup_docs)) {
|
|
CHK("UNDOCUMENTED_SETUP",
|
|
"__setup appears un-documented -- check Documentation/admin-guide/kernel-parameters.rst\n" . $herecurr);
|
|
}
|
|
}
|
|
|
|
# check for pointless casting of kmalloc return
|
|
if ($line =~ /\*\s*\)\s*[kv][czm]alloc(_node){0,1}\b/) {
|
|
WARN("UNNECESSARY_CASTS",
|
|
"unnecessary cast may hide bugs, see http://c-faq.com/malloc/mallocnocast.html\n" . $herecurr);
|
|
}
|
|
|
|
# alloc style
|
|
# p = alloc(sizeof(struct foo), ...) should be p = alloc(sizeof(*p), ...)
|
|
if ($perl_version_ok &&
|
|
$line =~ /\b($Lval)\s*\=\s*(?:$balanced_parens)?\s*([kv][mz]alloc(?:_node)?)\s*\(\s*(sizeof\s*\(\s*struct\s+$Lval\s*\))/) {
|
|
CHK("ALLOC_SIZEOF_STRUCT",
|
|
"Prefer $3(sizeof(*$1)...) over $3($4...)\n" . $herecurr);
|
|
}
|
|
|
|
# check for k[mz]alloc with multiplies that could be kmalloc_array/kcalloc
|
|
if ($perl_version_ok &&
|
|
defined $stat &&
|
|
$stat =~ /^\+\s*($Lval)\s*\=\s*(?:$balanced_parens)?\s*(k[mz]alloc)\s*\(\s*($FuncArg)\s*\*\s*($FuncArg)\s*,/) {
|
|
my $oldfunc = $3;
|
|
my $a1 = $4;
|
|
my $a2 = $10;
|
|
my $newfunc = "kmalloc_array";
|
|
$newfunc = "kcalloc" if ($oldfunc eq "kzalloc");
|
|
my $r1 = $a1;
|
|
my $r2 = $a2;
|
|
if ($a1 =~ /^sizeof\s*\S/) {
|
|
$r1 = $a2;
|
|
$r2 = $a1;
|
|
}
|
|
if ($r1 !~ /^sizeof\b/ && $r2 =~ /^sizeof\s*\S/ &&
|
|
!($r1 =~ /^$Constant$/ || $r1 =~ /^[A-Z_][A-Z0-9_]*$/)) {
|
|
my $cnt = statement_rawlines($stat);
|
|
my $herectx = get_stat_here($linenr, $cnt, $here);
|
|
|
|
if (WARN("ALLOC_WITH_MULTIPLY",
|
|
"Prefer $newfunc over $oldfunc with multiply\n" . $herectx) &&
|
|
$cnt == 1 &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =~ s/\b($Lval)\s*\=\s*(?:$balanced_parens)?\s*(k[mz]alloc)\s*\(\s*($FuncArg)\s*\*\s*($FuncArg)/$1 . ' = ' . "$newfunc(" . trim($r1) . ', ' . trim($r2)/e;
|
|
}
|
|
}
|
|
}
|
|
|
|
# check for krealloc arg reuse
|
|
if ($perl_version_ok &&
|
|
$line =~ /\b($Lval)\s*\=\s*(?:$balanced_parens)?\s*krealloc\s*\(\s*($Lval)\s*,/ &&
|
|
$1 eq $3) {
|
|
WARN("KREALLOC_ARG_REUSE",
|
|
"Reusing the krealloc arg is almost always a bug\n" . $herecurr);
|
|
}
|
|
|
|
# check for alloc argument mismatch
|
|
if ($line =~ /\b(kcalloc|kmalloc_array)\s*\(\s*sizeof\b/) {
|
|
WARN("ALLOC_ARRAY_ARGS",
|
|
"$1 uses number as first arg, sizeof is generally wrong\n" . $herecurr);
|
|
}
|
|
|
|
# check for multiple semicolons
|
|
if ($line =~ /;\s*;\s*$/) {
|
|
if (WARN("ONE_SEMICOLON",
|
|
"Statements terminations use 1 semicolon\n" . $herecurr) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =~ s/(\s*;\s*){2,}$/;/g;
|
|
}
|
|
}
|
|
|
|
# check for #defines like: 1 << <digit> that could be BIT(digit), it is not exported to uapi
|
|
if ($realfile !~ m@^include/uapi/@ &&
|
|
$line =~ /#\s*define\s+\w+\s+\(?\s*1\s*([ulUL]*)\s*\<\<\s*(?:\d+|$Ident)\s*\)?/) {
|
|
my $ull = "";
|
|
$ull = "_ULL" if (defined($1) && $1 =~ /ll/i);
|
|
if (CHK("BIT_MACRO",
|
|
"Prefer using the BIT$ull macro\n" . $herecurr) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =~ s/\(?\s*1\s*[ulUL]*\s*<<\s*(\d+|$Ident)\s*\)?/BIT${ull}($1)/;
|
|
}
|
|
}
|
|
|
|
# check for #if defined CONFIG_<FOO> || defined CONFIG_<FOO>_MODULE
|
|
if ($line =~ /^\+\s*#\s*if\s+defined(?:\s*\(?\s*|\s+)(CONFIG_[A-Z_]+)\s*\)?\s*\|\|\s*defined(?:\s*\(?\s*|\s+)\1_MODULE\s*\)?\s*$/) {
|
|
my $config = $1;
|
|
if (WARN("PREFER_IS_ENABLED",
|
|
"Prefer IS_ENABLED(<FOO>) to CONFIG_<FOO> || CONFIG_<FOO>_MODULE\n" . $herecurr) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] = "\+#if IS_ENABLED($config)";
|
|
}
|
|
}
|
|
|
|
# check for case / default statements not preceded by break/fallthrough/switch
|
|
if ($line =~ /^.\s*(?:case\s+(?:$Ident|$Constant)\s*|default):/) {
|
|
my $has_break = 0;
|
|
my $has_statement = 0;
|
|
my $count = 0;
|
|
my $prevline = $linenr;
|
|
while ($prevline > 1 && ($file || $count < 3) && !$has_break) {
|
|
$prevline--;
|
|
my $rline = $rawlines[$prevline - 1];
|
|
my $fline = $lines[$prevline - 1];
|
|
last if ($fline =~ /^\@\@/);
|
|
next if ($fline =~ /^\-/);
|
|
next if ($fline =~ /^.(?:\s*(?:case\s+(?:$Ident|$Constant)[\s$;]*|default):[\s$;]*)*$/);
|
|
$has_break = 1 if ($rline =~ /fall[\s_-]*(through|thru)/i);
|
|
next if ($fline =~ /^.[\s$;]*$/);
|
|
$has_statement = 1;
|
|
$count++;
|
|
$has_break = 1 if ($fline =~ /\bswitch\b|\b(?:break\s*;[\s$;]*$|exit\s*\(\b|return\b|goto\b|continue\b)/);
|
|
}
|
|
if (!$has_break && $has_statement) {
|
|
WARN("MISSING_BREAK",
|
|
"Possible switch case/default not preceded by break or fallthrough comment\n" . $herecurr);
|
|
}
|
|
}
|
|
|
|
# check for switch/default statements without a break;
|
|
if ($perl_version_ok &&
|
|
defined $stat &&
|
|
$stat =~ /^\+[$;\s]*(?:case[$;\s]+\w+[$;\s]*:[$;\s]*|)*[$;\s]*\bdefault[$;\s]*:[$;\s]*;/g) {
|
|
my $cnt = statement_rawlines($stat);
|
|
my $herectx = get_stat_here($linenr, $cnt, $here);
|
|
|
|
WARN("DEFAULT_NO_BREAK",
|
|
"switch default: should use break\n" . $herectx);
|
|
}
|
|
|
|
# check for return codes on error paths
|
|
if ($line =~ /\breturn\s+-\d+/) {
|
|
ERROR("NO_ERROR_CODE",
|
|
"illegal return value, please use an error code\n" . $herecurr);
|
|
}
|
|
|
|
# check for gcc specific __FUNCTION__
|
|
if ($line =~ /\b__FUNCTION__\b/) {
|
|
if (WARN("USE_FUNC",
|
|
"__func__ should be used instead of gcc specific __FUNCTION__\n" . $herecurr) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =~ s/\b__FUNCTION__\b/__func__/g;
|
|
}
|
|
}
|
|
|
|
# check for uses of __DATE__, __TIME__, __TIMESTAMP__
|
|
while ($line =~ /\b(__(?:DATE|TIME|TIMESTAMP)__)\b/g) {
|
|
ERROR("DATE_TIME",
|
|
"Use of the '$1' macro makes the build non-deterministic\n" . $herecurr);
|
|
}
|
|
|
|
# check for use of yield()
|
|
if ($line =~ /\byield\s*\(\s*\)/) {
|
|
WARN("YIELD",
|
|
"Using yield() is generally wrong. See yield() kernel-doc (sched/core.c)\n" . $herecurr);
|
|
}
|
|
|
|
# check for comparisons against true and false
|
|
if ($line =~ /\+\s*(.*?)\b(true|false|$Lval)\s*(==|\!=)\s*(true|false|$Lval)\b(.*)$/i) {
|
|
my $lead = $1;
|
|
my $arg = $2;
|
|
my $test = $3;
|
|
my $otype = $4;
|
|
my $trail = $5;
|
|
my $op = "!";
|
|
|
|
($arg, $otype) = ($otype, $arg) if ($arg =~ /^(?:true|false)$/i);
|
|
|
|
my $type = lc($otype);
|
|
if ($type =~ /^(?:true|false)$/) {
|
|
if (("$test" eq "==" && "$type" eq "true") ||
|
|
("$test" eq "!=" && "$type" eq "false")) {
|
|
$op = "";
|
|
}
|
|
|
|
CHK("BOOL_COMPARISON",
|
|
"Using comparison to $otype is error prone\n" . $herecurr);
|
|
|
|
## maybe suggesting a correct construct would better
|
|
## "Using comparison to $otype is error prone. Perhaps use '${lead}${op}${arg}${trail}'\n" . $herecurr);
|
|
|
|
}
|
|
}
|
|
|
|
# check for bool bitfields
|
|
if ($sline =~ /^.\s+bool\s*$Ident\s*:\s*\d+\s*;/) {
|
|
WARN("BOOL_BITFIELD",
|
|
"Avoid using bool as bitfield. Prefer bool bitfields as unsigned int or u<8|16|32>\n" . $herecurr);
|
|
}
|
|
|
|
# check for bool use in .h files
|
|
if ($realfile =~ /\.h$/ &&
|
|
$sline =~ /^.\s+bool\s*$Ident\s*(?::\s*d+\s*)?;/) {
|
|
CHK("BOOL_MEMBER",
|
|
"Avoid using bool structure members because of possible alignment issues - see: https://lkml.org/lkml/2017/11/21/384\n" . $herecurr);
|
|
}
|
|
|
|
# check for semaphores initialized locked
|
|
if ($line =~ /^.\s*sema_init.+,\W?0\W?\)/) {
|
|
WARN("CONSIDER_COMPLETION",
|
|
"consider using a completion\n" . $herecurr);
|
|
}
|
|
|
|
# recommend kstrto* over simple_strto* and strict_strto*
|
|
if ($line =~ /\b((simple|strict)_(strto(l|ll|ul|ull)))\s*\(/) {
|
|
WARN("CONSIDER_KSTRTO",
|
|
"$1 is obsolete, use k$3 instead\n" . $herecurr);
|
|
}
|
|
|
|
# check for __initcall(), use device_initcall() explicitly or more appropriate function please
|
|
if ($line =~ /^.\s*__initcall\s*\(/) {
|
|
WARN("USE_DEVICE_INITCALL",
|
|
"please use device_initcall() or more appropriate function instead of __initcall() (see include/linux/init.h)\n" . $herecurr);
|
|
}
|
|
|
|
# check for various structs that are normally const (ops, kgdb, device_tree)
|
|
# and avoid what seem like struct definitions 'struct foo {'
|
|
if ($line !~ /\bconst\b/ &&
|
|
$line =~ /\bstruct\s+($const_structs)\b(?!\s*\{)/) {
|
|
WARN("CONST_STRUCT",
|
|
"struct $1 should normally be const\n" . $herecurr);
|
|
}
|
|
|
|
# use of NR_CPUS is usually wrong
|
|
# ignore definitions of NR_CPUS and usage to define arrays as likely right
|
|
if ($line =~ /\bNR_CPUS\b/ &&
|
|
$line !~ /^.\s*\s*#\s*if\b.*\bNR_CPUS\b/ &&
|
|
$line !~ /^.\s*\s*#\s*define\b.*\bNR_CPUS\b/ &&
|
|
$line !~ /^.\s*$Declare\s.*\[[^\]]*NR_CPUS[^\]]*\]/ &&
|
|
$line !~ /\[[^\]]*\.\.\.[^\]]*NR_CPUS[^\]]*\]/ &&
|
|
$line !~ /\[[^\]]*NR_CPUS[^\]]*\.\.\.[^\]]*\]/)
|
|
{
|
|
WARN("NR_CPUS",
|
|
"usage of NR_CPUS is often wrong - consider using cpu_possible(), num_possible_cpus(), for_each_possible_cpu(), etc\n" . $herecurr);
|
|
}
|
|
|
|
# Use of __ARCH_HAS_<FOO> or ARCH_HAVE_<BAR> is wrong.
|
|
if ($line =~ /\+\s*#\s*define\s+((?:__)?ARCH_(?:HAS|HAVE)\w*)\b/) {
|
|
ERROR("DEFINE_ARCH_HAS",
|
|
"#define of '$1' is wrong - use Kconfig variables or standard guards instead\n" . $herecurr);
|
|
}
|
|
|
|
# likely/unlikely comparisons similar to "(likely(foo) > 0)"
|
|
if ($perl_version_ok &&
|
|
$line =~ /\b((?:un)?likely)\s*\(\s*$FuncArg\s*\)\s*$Compare/) {
|
|
WARN("LIKELY_MISUSE",
|
|
"Using $1 should generally have parentheses around the comparison\n" . $herecurr);
|
|
}
|
|
|
|
# whine mightly about in_atomic
|
|
if ($line =~ /\bin_atomic\s*\(/) {
|
|
if ($realfile =~ m@^drivers/@) {
|
|
ERROR("IN_ATOMIC",
|
|
"do not use in_atomic in drivers\n" . $herecurr);
|
|
} elsif ($realfile !~ m@^kernel/@) {
|
|
WARN("IN_ATOMIC",
|
|
"use of in_atomic() is incorrect outside core kernel code\n" . $herecurr);
|
|
}
|
|
}
|
|
|
|
# check for mutex_trylock_recursive usage
|
|
if ($line =~ /mutex_trylock_recursive/) {
|
|
ERROR("LOCKING",
|
|
"recursive locking is bad, do not use this ever.\n" . $herecurr);
|
|
}
|
|
|
|
# check for lockdep_set_novalidate_class
|
|
if ($line =~ /^.\s*lockdep_set_novalidate_class\s*\(/ ||
|
|
$line =~ /__lockdep_no_validate__\s*\)/ ) {
|
|
if ($realfile !~ m@^kernel/lockdep@ &&
|
|
$realfile !~ m@^include/linux/lockdep@ &&
|
|
$realfile !~ m@^drivers/base/core@) {
|
|
ERROR("LOCKDEP",
|
|
"lockdep_no_validate class is reserved for device->mutex.\n" . $herecurr);
|
|
}
|
|
}
|
|
|
|
if ($line =~ /debugfs_create_\w+.*\b$mode_perms_world_writable\b/ ||
|
|
$line =~ /DEVICE_ATTR.*\b$mode_perms_world_writable\b/) {
|
|
WARN("EXPORTED_WORLD_WRITABLE",
|
|
"Exporting world writable files is usually an error. Consider more restrictive permissions.\n" . $herecurr);
|
|
}
|
|
|
|
# check for DEVICE_ATTR uses that could be DEVICE_ATTR_<FOO>
|
|
# and whether or not function naming is typical and if
|
|
# DEVICE_ATTR permissions uses are unusual too
|
|
if ($perl_version_ok &&
|
|
defined $stat &&
|
|
$stat =~ /\bDEVICE_ATTR\s*\(\s*(\w+)\s*,\s*\(?\s*(\s*(?:${multi_mode_perms_string_search}|0[0-7]{3,3})\s*)\s*\)?\s*,\s*(\w+)\s*,\s*(\w+)\s*\)/) {
|
|
my $var = $1;
|
|
my $perms = $2;
|
|
my $show = $3;
|
|
my $store = $4;
|
|
my $octal_perms = perms_to_octal($perms);
|
|
if ($show =~ /^${var}_show$/ &&
|
|
$store =~ /^${var}_store$/ &&
|
|
$octal_perms eq "0644") {
|
|
if (WARN("DEVICE_ATTR_RW",
|
|
"Use DEVICE_ATTR_RW\n" . $herecurr) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =~ s/\bDEVICE_ATTR\s*\(\s*$var\s*,\s*\Q$perms\E\s*,\s*$show\s*,\s*$store\s*\)/DEVICE_ATTR_RW(${var})/;
|
|
}
|
|
} elsif ($show =~ /^${var}_show$/ &&
|
|
$store =~ /^NULL$/ &&
|
|
$octal_perms eq "0444") {
|
|
if (WARN("DEVICE_ATTR_RO",
|
|
"Use DEVICE_ATTR_RO\n" . $herecurr) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =~ s/\bDEVICE_ATTR\s*\(\s*$var\s*,\s*\Q$perms\E\s*,\s*$show\s*,\s*NULL\s*\)/DEVICE_ATTR_RO(${var})/;
|
|
}
|
|
} elsif ($show =~ /^NULL$/ &&
|
|
$store =~ /^${var}_store$/ &&
|
|
$octal_perms eq "0200") {
|
|
if (WARN("DEVICE_ATTR_WO",
|
|
"Use DEVICE_ATTR_WO\n" . $herecurr) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =~ s/\bDEVICE_ATTR\s*\(\s*$var\s*,\s*\Q$perms\E\s*,\s*NULL\s*,\s*$store\s*\)/DEVICE_ATTR_WO(${var})/;
|
|
}
|
|
} elsif ($octal_perms eq "0644" ||
|
|
$octal_perms eq "0444" ||
|
|
$octal_perms eq "0200") {
|
|
my $newshow = "$show";
|
|
$newshow = "${var}_show" if ($show ne "NULL" && $show ne "${var}_show");
|
|
my $newstore = $store;
|
|
$newstore = "${var}_store" if ($store ne "NULL" && $store ne "${var}_store");
|
|
my $rename = "";
|
|
if ($show ne $newshow) {
|
|
$rename .= " '$show' to '$newshow'";
|
|
}
|
|
if ($store ne $newstore) {
|
|
$rename .= " '$store' to '$newstore'";
|
|
}
|
|
WARN("DEVICE_ATTR_FUNCTIONS",
|
|
"Consider renaming function(s)$rename\n" . $herecurr);
|
|
} else {
|
|
WARN("DEVICE_ATTR_PERMS",
|
|
"DEVICE_ATTR unusual permissions '$perms' used\n" . $herecurr);
|
|
}
|
|
}
|
|
|
|
# Mode permission misuses where it seems decimal should be octal
|
|
# This uses a shortcut match to avoid unnecessary uses of a slow foreach loop
|
|
# o Ignore module_param*(...) uses with a decimal 0 permission as that has a
|
|
# specific definition of not visible in sysfs.
|
|
# o Ignore proc_create*(...) uses with a decimal 0 permission as that means
|
|
# use the default permissions
|
|
if ($perl_version_ok &&
|
|
defined $stat &&
|
|
$line =~ /$mode_perms_search/) {
|
|
foreach my $entry (@mode_permission_funcs) {
|
|
my $func = $entry->[0];
|
|
my $arg_pos = $entry->[1];
|
|
|
|
my $lc = $stat =~ tr@\n@@;
|
|
$lc = $lc + $linenr;
|
|
my $stat_real = get_stat_real($linenr, $lc);
|
|
|
|
my $skip_args = "";
|
|
if ($arg_pos > 1) {
|
|
$arg_pos--;
|
|
$skip_args = "(?:\\s*$FuncArg\\s*,\\s*){$arg_pos,$arg_pos}";
|
|
}
|
|
my $test = "\\b$func\\s*\\(${skip_args}($FuncArg(?:\\|\\s*$FuncArg)*)\\s*[,\\)]";
|
|
if ($stat =~ /$test/) {
|
|
my $val = $1;
|
|
$val = $6 if ($skip_args ne "");
|
|
if (!($func =~ /^(?:module_param|proc_create)/ && $val eq "0") &&
|
|
(($val =~ /^$Int$/ && $val !~ /^$Octal$/) ||
|
|
($val =~ /^$Octal$/ && length($val) ne 4))) {
|
|
ERROR("NON_OCTAL_PERMISSIONS",
|
|
"Use 4 digit octal (0777) not decimal permissions\n" . "$here\n" . $stat_real);
|
|
}
|
|
if ($val =~ /^$Octal$/ && (oct($val) & 02)) {
|
|
ERROR("EXPORTED_WORLD_WRITABLE",
|
|
"Exporting writable files is usually an error. Consider more restrictive permissions.\n" . "$here\n" . $stat_real);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
# check for uses of S_<PERMS> that could be octal for readability
|
|
while ($line =~ m{\b($multi_mode_perms_string_search)\b}g) {
|
|
my $oval = $1;
|
|
my $octal = perms_to_octal($oval);
|
|
if (WARN("SYMBOLIC_PERMS",
|
|
"Symbolic permissions '$oval' are not preferred. Consider using octal permissions '$octal'.\n" . $herecurr) &&
|
|
$fix) {
|
|
$fixed[$fixlinenr] =~ s/\Q$oval\E/$octal/;
|
|
}
|
|
}
|
|
|
|
# validate content of MODULE_LICENSE against list from include/linux/module.h
|
|
if ($line =~ /\bMODULE_LICENSE\s*\(\s*($String)\s*\)/) {
|
|
my $extracted_string = get_quoted_string($line, $rawline);
|
|
my $valid_licenses = qr{
|
|
GPL|
|
|
GPL\ v2|
|
|
GPL\ and\ additional\ rights|
|
|
Dual\ BSD/GPL|
|
|
Dual\ MIT/GPL|
|
|
Dual\ MPL/GPL|
|
|
Proprietary
|
|
}x;
|
|
if ($extracted_string !~ /^"(?:$valid_licenses)"$/x) {
|
|
WARN("MODULE_LICENSE",
|
|
"unknown module license " . $extracted_string . "\n" . $herecurr);
|
|
}
|
|
}
|
|
}
|
|
|
|
# If we have no input at all, then there is nothing to report on
|
|
# so just keep quiet.
|
|
if ($#rawlines == -1) {
|
|
exit(0);
|
|
}
|
|
|
|
# In mailback mode only produce a report in the negative, for
|
|
# things that appear to be patches.
|
|
if ($mailback && ($clean == 1 || !$is_patch)) {
|
|
exit(0);
|
|
}
|
|
|
|
# This is not a patch, and we are are in 'no-patch' mode so
|
|
# just keep quiet.
|
|
if (!$chk_patch && !$is_patch) {
|
|
exit(0);
|
|
}
|
|
|
|
if (!$is_patch && $filename !~ /cover-letter\.patch$/) {
|
|
ERROR("NOT_UNIFIED_DIFF",
|
|
"Does not appear to be a unified-diff format patch\n");
|
|
}
|
|
if ($is_patch && $has_commit_log && $chk_signoff) {
|
|
if ($signoff == 0) {
|
|
ERROR("MISSING_SIGN_OFF",
|
|
"Missing Signed-off-by: line(s)\n");
|
|
} elsif (!$authorsignoff) {
|
|
WARN("NO_AUTHOR_SIGN_OFF",
|
|
"Missing Signed-off-by: line by nominal patch author '$author'\n");
|
|
}
|
|
}
|
|
|
|
print report_dump();
|
|
if ($summary && !($clean == 1 && $quiet == 1)) {
|
|
print "$filename " if ($summary_file);
|
|
print "total: $cnt_error errors, $cnt_warn warnings, " .
|
|
(($check)? "$cnt_chk checks, " : "") .
|
|
"$cnt_lines lines checked\n";
|
|
}
|
|
|
|
if ($quiet == 0) {
|
|
# If there were any defects found and not already fixing them
|
|
if (!$clean and !$fix) {
|
|
print << "EOM"
|
|
|
|
NOTE: For some of the reported defects, checkpatch may be able to
|
|
mechanically convert to the typical style using --fix or --fix-inplace.
|
|
EOM
|
|
}
|
|
# If there were whitespace errors which cleanpatch can fix
|
|
# then suggest that.
|
|
if ($rpt_cleaners) {
|
|
$rpt_cleaners = 0;
|
|
print << "EOM"
|
|
|
|
NOTE: Whitespace errors detected.
|
|
You may wish to use scripts/cleanpatch or scripts/cleanfile
|
|
EOM
|
|
}
|
|
}
|
|
|
|
if ($clean == 0 && $fix &&
|
|
("@rawlines" ne "@fixed" ||
|
|
$#fixed_inserted >= 0 || $#fixed_deleted >= 0)) {
|
|
my $newfile = $filename;
|
|
$newfile .= ".EXPERIMENTAL-checkpatch-fixes" if (!$fix_inplace);
|
|
my $linecount = 0;
|
|
my $f;
|
|
|
|
@fixed = fix_inserted_deleted_lines(\@fixed, \@fixed_inserted, \@fixed_deleted);
|
|
|
|
open($f, '>', $newfile)
|
|
or die "$P: Can't open $newfile for write\n";
|
|
foreach my $fixed_line (@fixed) {
|
|
$linecount++;
|
|
if ($file) {
|
|
if ($linecount > 3) {
|
|
$fixed_line =~ s/^\+//;
|
|
print $f $fixed_line . "\n";
|
|
}
|
|
} else {
|
|
print $f $fixed_line . "\n";
|
|
}
|
|
}
|
|
close($f);
|
|
|
|
if (!$quiet) {
|
|
print << "EOM";
|
|
|
|
Wrote EXPERIMENTAL --fix correction(s) to '$newfile'
|
|
|
|
Do _NOT_ trust the results written to this file.
|
|
Do _NOT_ submit these changes without inspecting them for correctness.
|
|
|
|
This EXPERIMENTAL file is simply a convenience to help rewrite patches.
|
|
No warranties, expressed or implied...
|
|
EOM
|
|
}
|
|
}
|
|
|
|
if ($quiet == 0) {
|
|
print "\n";
|
|
if ($clean == 1) {
|
|
print "$vname has no obvious style problems and is ready for submission.\n";
|
|
} else {
|
|
print "$vname has style problems, please review.\n";
|
|
}
|
|
}
|
|
return $clean;
|
|
}
|