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| author | Maarten Lankhorst <maarten.lankhorst@linux.intel.com> | 2024-05-28 23:21:34 +0300 |
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| committer | Maarten Lankhorst <maarten.lankhorst@linux.intel.com> | 2024-05-28 23:21:34 +0300 |
| commit | f73a058be5d70dd81a43f16b2bbff4b1576a7af8 (patch) | |
| tree | b7959c01cf7a5d95c7c4d5b61929ff9123370322 /arch/sparc/lib/atomic32.c | |
| parent | 6cb05d89fd62a76a9b74bd16211fb0930e89fea8 (diff) | |
| parent | 3e049b6b8f32f25c6967f4cffd8eac6e1e5316f6 (diff) | |
| download | linux-f73a058be5d70dd81a43f16b2bbff4b1576a7af8.tar.xz | |
Merge remote-tracking branch 'drm/drm-fixes' into drm-misc-fixes
v6.10-rc1 is released, forward from v6.9
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Diffstat (limited to 'arch/sparc/lib/atomic32.c')
| -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 cf80d1ae352b..8ae880ebf07a 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) |