diff options
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)  |