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- #ifndef __ASM_GENERIC_CMPXCHG_H
- #define __ASM_GENERIC_CMPXCHG_H
- /*
- * Generic cmpxchg
- *
- * Uses the local cmpxchg. Does not support SMP.
- */
- #ifdef CONFIG_SMP
- #error "Cannot use generic cmpxchg on SMP"
- #endif
- /*
- * Atomic compare and exchange.
- *
- * Do not define __HAVE_ARCH_CMPXCHG because we want to use it to check whether
- * a cmpxchg primitive faster than repeated local irq save/restore exists.
- */
- #define cmpxchg(ptr, o, n) cmpxchg_local((ptr), (o), (n))
- #define cmpxchg64(ptr, o, n) cmpxchg64_local((ptr), (o), (n))
- #endif
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