On Fri, 2013-06-21 at 18:17 +0100, Will Deacon wrote:
> The arch_{spin,read,write}_relax macros are not used anywhere in the
> kernel and are typically just aliases for cpu_relax().
>
> This patch removes the unused definitions for PowerPC.
>
Acked-by: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
> Signed-off-by: Will Deacon <will.deacon@xxxxxxx>
> ---
> arch/powerpc/include/asm/spinlock.h | 4 ----
> 1 file changed, 4 deletions(-)
>
> diff --git a/arch/powerpc/include/asm/spinlock.h b/arch/powerpc/include/asm/spinlock.h
> index 5b23f91..2d4a841 100644
> --- a/arch/powerpc/include/asm/spinlock.h
> +++ b/arch/powerpc/include/asm/spinlock.h
> @@ -291,9 +291,5 @@ static inline void arch_write_unlock(arch_rwlock_t *rw)
> #define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
> #define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
>
> -#define arch_spin_relax(lock) __spin_yield(lock)
> -#define arch_read_relax(lock) __rw_yield(lock)
> -#define arch_write_relax(lock) __rw_yield(lock)
> -
> #endif /* __KERNEL__ */
> #endif /* __ASM_SPINLOCK_H */
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