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android_kernel_xiaomi_sm7250/kernel
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Randy Dunlap 62dd9867b3 dma-debug: fix return value of __setup handlers 
[ Upstream commit 80e4390981618e290616dbd06ea190d4576f219d ]

When valid kernel command line parameters
  dma_debug=off dma_debug_entries=100
are used, they are reported as Unknown parameters and added to init's
environment strings, polluting it.

  Unknown kernel command line parameters "BOOT_IMAGE=/boot/bzImage-517rc5
    dma_debug=off dma_debug_entries=100", will be passed to user space.

and

 Run /sbin/init as init process
   with arguments:
     /sbin/init
   with environment:
     HOME=/
     TERM=linux
     BOOT_IMAGE=/boot/bzImage-517rc5
     dma_debug=off
     dma_debug_entries=100

Return 1 from these __setup handlers to indicate that the command line
option has been handled.

Fixes: 59d3daafa1 ("dma-debug: add kernel command line parameters")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: Igor Zhbanov <i.zhbanov@omprussia.ru>
Link: lore.kernel.org/r/64644a2f-4a20-bab3-1e15-3b2cdd0defe3@omprussia.ru
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: iommu@lists.linux-foundation.org
Cc: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-15 14:14:51 +02:00
..
bpf bpf: Add kconfig knob for disabling unpriv bpf by default 2022-02-16 12:51:45 +01:00
cgroup cpuset: Fix unsafe lock order between cpuset lock and cpuslock 2022-03-23 09:10:41 +01:00
configs
debug kdb: Make memory allocations more robust 2021-03-04 09:39:31 +01:00
dma dma-debug: fix return value of __setup handlers 2022-04-15 14:14:51 +02:00
events perf/core: Fix address filter parser for multiple filters 2022-04-15 14:14:44 +02:00
gcov gcov: add support for GCC 10.1 2020-09-17 13:45:31 +02:00
irq genirq/msi: Ensure deactivation on teardown 2021-08-26 08:36:40 -04:00
livepatch livepatch: Nullify obj->mod in klp_module_coming()'s error path 2019-10-07 18:57:10 +02:00
locking locking/lockdep: Avoid RCU-induced noinstr fail 2021-11-26 11:36:04 +01:00
power PM: suspend: fix return value of __setup handler 2022-04-15 14:14:43 +02:00
printk printk: fix return value of printk.devkmsg __setup handler 2022-04-15 14:14:45 +02:00
rcu rcu: Fix missed wakeup of exp_wq waiters 2021-09-26 13:39:46 +02:00
sched sched/debug: Remove mpol_get/put and task_lock/unlock from sched_show_numa 2022-04-15 14:14:44 +02:00
time timekeeping: Really make sure wall_to_monotonic isn't positive 2021-12-22 09:19:03 +01:00
trace tracing: Ensure trace buffer is at least 4096 bytes large 2022-03-16 13:20:27 +01:00
.gitignore
acct.c
async.c Revert "module, async: async_synchronize_full() on module init iff async is used" 2022-02-23 11:58:38 +01:00
audit_fsnotify.c
audit_tree.c audit: Embed key into chunk 2019-12-13 08:51:11 +01:00
audit_watch.c audit: CONFIG_CHANGE don't log internal bookkeeping as an event 2020-10-01 13:14:33 +02:00
audit.c audit: improve audit queue handling when "audit=1" on cmdline 2022-02-08 18:23:13 +01:00
audit.h audit: fix a net reference leak in audit_list_rules_send() 2020-06-22 09:05:13 +02:00
auditfilter.c audit: fix a net reference leak in audit_list_rules_send() 2020-06-22 09:05:13 +02:00
auditsc.c audit: print empty EXECVE args 2019-12-01 09:17:17 +01:00
backtracetest.c
bounds.c
capability.c LSM: generalize flag passing to security_capable 2020-01-23 08:21:29 +01:00
compat.c make 'user_access_begin()' do 'access_ok()' 2020-06-22 09:04:58 +02:00
configs.c
context_tracking.c
cpu_pm.c kernel/cpu_pm: Fix uninitted local in cpu_pm 2020-06-22 09:05:28 +02:00
cpu.c cpu/hotplug: Cure the cpusets trainwreck 2021-07-20 16:16:04 +02:00
crash_core.c
crash_dump.c
cred.c memcg: account security cred as well to kmemcg 2020-01-09 10:19:00 +01:00
delayacct.c
dma.c
exec_domain.c
exit.c futex: Mark the begin of futex exit explicitly 2021-01-30 13:32:11 +01:00
extable.c
fail_function.c fail_function: Remove a redundant mutex unlock 2020-11-24 13:27:23 +01:00
fork.c mm/hugetlb: initialize hugetlb_usage in mm_init 2021-09-22 11:48:09 +02:00
freezer.c
futex.c mm, futex: fix shared futex pgoff on shmem huge page 2021-07-11 12:49:30 +02:00
groups.c
hung_task.c
iomem.c
irq_work.c
jump_label.c locking/static_key: Fix false positive warnings on concurrent dec/inc 2021-03-04 09:39:30 +01:00
kallsyms.c kallsyms: Refactor kallsyms_show_value() to take cred 2020-07-16 08:17:26 +02:00
kcmp.c
Kconfig.freezer
Kconfig.hz
Kconfig.locks
Kconfig.preempt
kcov.c
kexec_core.c kernel: kexec: remove the lock operation of system_transition_mutex 2021-02-03 23:23:23 +01:00
kexec_file.c kernel: kexec_file: fix error return code of kexec_calculate_store_digests() 2021-05-22 10:59:44 +02:00
kexec_internal.h
kexec.c
kmod.c kmod: make request_module() return an error when autoloading is disabled 2020-04-17 10:48:52 +02:00
kprobes.c kprobes: Limit max data_size of the kretprobe instances 2021-12-08 08:50:12 +01:00
ksysfs.c
kthread.c kthread: prevent deadlock when kthread_mod_delayed_work() races with kthread_cancel_delayed_work_sync() 2021-07-11 12:49:31 +02:00
latencytop.c
Makefile elfcore: fix building with clang 2021-02-10 09:21:06 +01:00
memremap.c mm/memory_hotplug: shrink zones when offlining memory 2020-01-29 16:43:27 +01:00
module_signing.c
module-internal.h
module.c Revert "module, async: async_synchronize_full() on module init iff async is used" 2022-02-23 11:58:38 +01:00
notifier.c x86/mm: split vmalloc_sync_all() 2020-03-25 08:06:13 +01:00
nsproxy.c
padata.c padata: add separate cpuhp node for CPUHP_PADATA_DEAD 2021-08-08 08:54:30 +02:00
panic.c kernel/panic.c: do not append newline to the stack protector panic string 2019-12-01 09:17:10 +01:00
params.c
pid_namespace.c memcg: enable accounting for pids in nested pid namespaces 2021-09-22 11:48:09 +02:00
pid.c
profile.c profiling: fix shift-out-of-bounds bugs 2021-09-26 13:39:48 +02:00
ptrace.c ptrace: Check PTRACE_O_SUSPEND_SECCOMP permission on PTRACE_SEIZE 2022-04-15 14:14:38 +02:00
range.c
reboot.c reboot: fix overflow parsing reboot cpu number 2020-11-18 19:18:52 +01:00
relay.c kernel/relay.c: fix memleak on destroy relay channel 2020-08-26 10:30:59 +02:00
resource.c resource: fix locking in find_next_iomem_res() 2019-09-16 08:22:20 +02:00
rseq.c
seccomp.c seccomp: Invalidate seccomp mode to catch death failures 2022-02-16 12:51:47 +01:00
signal.c signal: Remove the bogus sigkill_pending in ptrace_stop 2021-11-26 11:36:02 +01:00
smp.c smp: Fix smp_call_function_single_async prototype 2021-05-22 10:59:39 +02:00
smpboot.c kthread: Extract KTHREAD_IS_PER_CPU 2021-02-07 14:48:38 +01:00
smpboot.h
softirq.c
stacktrace.c
stop_machine.c
sys_ni.c
sys.c prctl: allow to setup brk for et_dyn executables 2021-09-26 13:39:47 +02:00
sysctl_binary.c
sysctl.c x86/speculation: Include unprivileged eBPF status in Spectre v2 mitigation reporting 2022-03-11 10:15:11 +01:00
task_work.c
taskstats.c taskstats: fix data-race 2020-01-09 10:18:59 +01:00
test_kprobes.c
torture.c
tracepoint.c tracepoint: Add tracepoint_probe_register_may_exist() for BPF tracing 2021-07-20 16:15:42 +02:00
tsacct.c taskstats: Cleanup the use of task->exit_code 2022-02-23 11:58:39 +01:00
ucount.c
uid16.c
uid16.h
umh.c usermodehelper: reset umask to default before executing user process 2020-10-14 10:31:21 +02:00
up.c smp: Fix smp_call_function_single_async prototype 2021-05-22 10:59:39 +02:00
user_namespace.c
user-return-notifier.c
user.c
utsname_sysctl.c
utsname.c
watchdog_hld.c
watchdog.c watchdog/softlockup: Enforce that timestamp is valid on boot 2020-02-24 08:34:49 +01:00
workqueue_internal.h
workqueue.c workqueue: make sysfs of unbound kworker cpumask more clever 2021-11-26 11:36:06 +01:00