android_kernel_xiaomi_sm7250/arch/sh
Geert Uytterhoeven 014ec97717 sh: landisk: Add missing initialization of sh_io_port_base
[ Upstream commit 0c64a0dce51faa9c706fdf1f957d6f19878f4b81 ]

The Landisk setup code maps the CF IDE area using ioremap_prot(), and
passes the resulting virtual addresses to the pata_platform driver,
disguising them as I/O port addresses.  Hence the pata_platform driver
translates them again using ioport_map().
As CONFIG_GENERIC_IOMAP=n, and CONFIG_HAS_IOPORT_MAP=y, the
SuperH-specific mapping code in arch/sh/kernel/ioport.c translates
I/O port addresses to virtual addresses by adding sh_io_port_base, which
defaults to -1, thus breaking the assumption of an identity mapping.

Fix this by setting sh_io_port_base to zero.

Fixes: 37b7a97884 ("sh: machvec IO death.")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Rich Felker <dalias@libc.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-08-21 11:05:39 +02:00
..
boards sh: landisk: Add missing initialization of sh_io_port_base 2020-08-21 11:05:39 +02:00
boot
cchips
configs scsi: sr: remove references to BLK_DEV_SR_VENDOR, leave it enabled 2020-07-22 09:32:04 +02:00
drivers
include Fix 'acccess_ok()' on alpha and SH 2020-06-22 09:04:58 +02:00
kernel sh: Fix validation of system call number 2020-08-05 10:06:02 +02:00
lib
lib64
math-emu
mm
oprofile
tools
Kconfig
Kconfig.cpu
Kconfig.debug
Makefile