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author | Thomas Bogendoerfer <tbogendoerfer@suse.de> | 2019-10-06 16:12:32 +0300 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-11-06 15:05:54 +0300 |
commit | 0169198631e71c60e96096e17bc9f6c881fcb963 (patch) | |
tree | 0d83502d72fd6c9bac1f965f9767091ff6442a86 /arch/mips/include | |
parent | 9b7591cf6cf6be9ae4933b780d15cccdbad54867 (diff) | |
download | linux-0169198631e71c60e96096e17bc9f6c881fcb963.tar.xz |
MIPS: include: Mark __cmpxchg as __always_inline
[ Upstream commit 88356d09904bc606182c625575237269aeece22e ]
Commit ac7c3e4ff401 ("compiler: enable CONFIG_OPTIMIZE_INLINING
forcibly") allows compiler to uninline functions marked as 'inline'.
In cace of cmpxchg this would cause to reference function
__cmpxchg_called_with_bad_pointer, which is a error case
for catching bugs and will not happen for correct code, if
__cmpxchg is inlined.
Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
[paul.burton@mips.com: s/__cmpxchd/__cmpxchg in subject]
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'arch/mips/include')
-rw-r--r-- | arch/mips/include/asm/cmpxchg.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/mips/include/asm/cmpxchg.h b/arch/mips/include/asm/cmpxchg.h index 89e9fb7976fe..895f91b9e89c 100644 --- a/arch/mips/include/asm/cmpxchg.h +++ b/arch/mips/include/asm/cmpxchg.h @@ -146,8 +146,9 @@ static inline unsigned long __xchg(volatile void *ptr, unsigned long x, extern unsigned long __cmpxchg_small(volatile void *ptr, unsigned long old, unsigned long new, unsigned int size); -static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old, - unsigned long new, unsigned int size) +static __always_inline +unsigned long __cmpxchg(volatile void *ptr, unsigned long old, + unsigned long new, unsigned int size) { switch (size) { case 1: |