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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-08-07 13:17:46 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-08-07 13:17:46 +0000 |
commit | 7f3a4257159dea8e7ef66d1a539dc6df708b8ed3 (patch) | |
tree | bcc69b5f4609f348fac49e2f59e210b29eaea783 /arch/parisc/include/asm/cmpxchg.h | |
parent | Adding upstream version 6.9.12. (diff) | |
download | linux-7f3a4257159dea8e7ef66d1a539dc6df708b8ed3.tar.xz linux-7f3a4257159dea8e7ef66d1a539dc6df708b8ed3.zip |
Adding upstream version 6.10.3.upstream/6.10.3
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/parisc/include/asm/cmpxchg.h')
-rw-r--r-- | arch/parisc/include/asm/cmpxchg.h | 22 |
1 files changed, 10 insertions, 12 deletions
diff --git a/arch/parisc/include/asm/cmpxchg.h b/arch/parisc/include/asm/cmpxchg.h index c1d776bb16..bf0a0f1189 100644 --- a/arch/parisc/include/asm/cmpxchg.h +++ b/arch/parisc/include/asm/cmpxchg.h @@ -56,26 +56,24 @@ __arch_xchg(unsigned long x, volatile void *ptr, int size) /* bug catcher for when unsupported size is used - won't link */ extern void __cmpxchg_called_with_bad_pointer(void); -/* __cmpxchg_u32/u64 defined in arch/parisc/lib/bitops.c */ -extern unsigned long __cmpxchg_u32(volatile unsigned int *m, unsigned int old, - unsigned int new_); -extern u64 __cmpxchg_u64(volatile u64 *ptr, u64 old, u64 new_); +/* __cmpxchg_u... defined in arch/parisc/lib/bitops.c */ extern u8 __cmpxchg_u8(volatile u8 *ptr, u8 old, u8 new_); +extern u16 __cmpxchg_u16(volatile u16 *ptr, u16 old, u16 new_); +extern u32 __cmpxchg_u32(volatile u32 *m, u32 old, u32 new_); +extern u64 __cmpxchg_u64(volatile u64 *ptr, u64 old, u64 new_); /* don't worry...optimizer will get rid of most of this */ static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old, unsigned long new_, int size) { - switch (size) { + return #ifdef CONFIG_64BIT - case 8: return __cmpxchg_u64((u64 *)ptr, old, new_); + size == 8 ? __cmpxchg_u64(ptr, old, new_) : #endif - case 4: return __cmpxchg_u32((unsigned int *)ptr, - (unsigned int)old, (unsigned int)new_); - case 1: return __cmpxchg_u8((u8 *)ptr, old & 0xff, new_ & 0xff); - } - __cmpxchg_called_with_bad_pointer(); - return old; + size == 4 ? __cmpxchg_u32(ptr, old, new_) : + size == 2 ? __cmpxchg_u16(ptr, old, new_) : + size == 1 ? __cmpxchg_u8(ptr, old, new_) : + (__cmpxchg_called_with_bad_pointer(), old); } #define arch_cmpxchg(ptr, o, n) \ |