summaryrefslogtreecommitdiff
path: root/arch/loongarch
diff options
context:
space:
mode:
authorHuacai Chen <chenhuacai@loongson.cn>2022-10-12 11:36:08 +0300
committerHuacai Chen <chenhuacai@loongson.cn>2022-10-12 11:36:08 +0300
commitddf502717da029c9f065ade7e9bce90a1890e7df (patch)
tree930d40686b776b56380e3d1eee962930527ca62e /arch/loongarch
parent1299a129a9f927433ba792b242c1f287a96059e7 (diff)
downloadlinux-ddf502717da029c9f065ade7e9bce90a1890e7df.tar.xz
LoongArch: Mark __xchg() and __cmpxchg() as __always_inline
Commit ac7c3e4ff401 ("compiler: enable CONFIG_OPTIMIZE_INLINING forcibly") allows compiler to uninline functions marked as 'inline'. In case of __xchg()/__cmpxchg() this would cause to reference BUILD_BUG(), which is an error case for catching bugs and will not happen for correct code, if __xchg()/__cmpxchg() is inlined. This bug can be produced with CONFIG_DEBUG_SECTION_MISMATCH enabled, and the solution is similar to below commits: 46f1619500d0225 ("MIPS: include: Mark __xchg as __always_inline"), 88356d09904bc60 ("MIPS: include: Mark __cmpxchg as __always_inline"). Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Diffstat (limited to 'arch/loongarch')
-rw-r--r--arch/loongarch/include/asm/cmpxchg.h8
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/loongarch/include/asm/cmpxchg.h b/arch/loongarch/include/asm/cmpxchg.h
index ae19e33c7754..ecfa6cf79806 100644
--- a/arch/loongarch/include/asm/cmpxchg.h
+++ b/arch/loongarch/include/asm/cmpxchg.h
@@ -61,8 +61,8 @@ static inline unsigned int __xchg_small(volatile void *ptr, unsigned int val,
return (old32 & mask) >> shift;
}
-static inline unsigned long __xchg(volatile void *ptr, unsigned long x,
- int size)
+static __always_inline unsigned long
+__xchg(volatile void *ptr, unsigned long x, int size)
{
switch (size) {
case 1:
@@ -159,8 +159,8 @@ static inline unsigned int __cmpxchg_small(volatile void *ptr, unsigned int old,
return (old32 & mask) >> shift;
}
-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: