diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-08-07 13:17:46 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-08-07 13:17:46 +0000 |
commit | 7f3a4257159dea8e7ef66d1a539dc6df708b8ed3 (patch) | |
tree | bcc69b5f4609f348fac49e2f59e210b29eaea783 /arch/sparc/lib | |
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/sparc/lib')
-rw-r--r-- | arch/sparc/lib/atomic32.c | 45 |
1 files changed, 20 insertions, 25 deletions
diff --git a/arch/sparc/lib/atomic32.c b/arch/sparc/lib/atomic32.c index cf80d1ae35..8ae880ebf0 100644 --- a/arch/sparc/lib/atomic32.c +++ b/arch/sparc/lib/atomic32.c @@ -159,32 +159,27 @@ unsigned long sp32___change_bit(unsigned long *addr, unsigned long mask) } EXPORT_SYMBOL(sp32___change_bit); -unsigned long __cmpxchg_u32(volatile u32 *ptr, u32 old, u32 new) -{ - unsigned long flags; - u32 prev; - - spin_lock_irqsave(ATOMIC_HASH(ptr), flags); - if ((prev = *ptr) == old) - *ptr = new; - spin_unlock_irqrestore(ATOMIC_HASH(ptr), flags); - - return (unsigned long)prev; -} +#define CMPXCHG(T) \ + T __cmpxchg_##T(volatile T *ptr, T old, T new) \ + { \ + unsigned long flags; \ + T prev; \ + \ + spin_lock_irqsave(ATOMIC_HASH(ptr), flags); \ + if ((prev = *ptr) == old) \ + *ptr = new; \ + spin_unlock_irqrestore(ATOMIC_HASH(ptr), flags);\ + \ + return prev; \ + } + +CMPXCHG(u8) +CMPXCHG(u16) +CMPXCHG(u32) +CMPXCHG(u64) +EXPORT_SYMBOL(__cmpxchg_u8); +EXPORT_SYMBOL(__cmpxchg_u16); EXPORT_SYMBOL(__cmpxchg_u32); - -u64 __cmpxchg_u64(u64 *ptr, u64 old, u64 new) -{ - unsigned long flags; - u64 prev; - - spin_lock_irqsave(ATOMIC_HASH(ptr), flags); - if ((prev = *ptr) == old) - *ptr = new; - spin_unlock_irqrestore(ATOMIC_HASH(ptr), flags); - - return prev; -} EXPORT_SYMBOL(__cmpxchg_u64); unsigned long __xchg_u32(volatile u32 *ptr, u32 new) |