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| author |   Arnd Bergmann <arnd@arndb.de> | 2021-10-18 15:30:04 +0100 |
|---|---|---|
| committer |   Russell King (Oracle) <rmk+kernel@armlinux.org.uk> | 2021-10-19 10:37:36 +0100 |
| commit | eaf6cc7165c9c5aa3c2f9faa03a98598123d0afb (patch) | |
| tree | 2f26d7b12381ec2ff8f1a2e39d1771ebb9b43dda /arch/arm/kernel/vmlinux-xip.lds.S | |
| parent | ARM: 9133/1: mm: proc-macros: ensure *_tlb_fns are 4B aligned (diff) | |
| download | linux-dev-eaf6cc7165c9c5aa3c2f9faa03a98598123d0afb.tar.xz linux-dev-eaf6cc7165c9c5aa3c2f9faa03a98598123d0afb.zip | |
ARM: 9134/1: remove duplicate memcpy() definition
Both the decompressor code and the kasan logic try to override
the memcpy() and memmove() definitions, which leading to a clash
in a KASAN-enabled kernel with XZ decompression:
arch/arm/boot/compressed/decompress.c:50:9: error: 'memmove' macro redefined [-Werror,-Wmacro-redefined]
#define memmove memmove
^
arch/arm/include/asm/string.h:59:9: note: previous definition is here
#define memmove(dst, src, len) __memmove(dst, src, len)
^
arch/arm/boot/compressed/decompress.c:51:9: error: 'memcpy' macro redefined [-Werror,-Wmacro-redefined]
#define memcpy memcpy
^
arch/arm/include/asm/string.h:58:9: note: previous definition is here
#define memcpy(dst, src, len) __memcpy(dst, src, len)
^
Here we want the set of functions from the decompressor, so undefine
the other macros before the override.
Link: https://lore.kernel.org/linux-arm-kernel/CACRpkdZYJogU_SN3H9oeVq=zJkRgRT1gDz3xp59gdqWXxw-B=w@mail.gmail.com/
Link: https://lore.kernel.org/lkml/202105091112.F5rmd4By-lkp@intel.com/
Fixes: d6d51a96c7d6 ("ARM: 9014/2: Replace string mem* functions for KASan")
Fixes: a7f464f3db93 ("ARM: 7001/2: Wire up support for the XZ decompressor")
Reported-by: kernel test robot <lkp@intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Diffstat (limited to '')
0 files changed, 0 insertions, 0 deletions