From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Will Deacon <will.deacon@arm.com>
Cc: linux-arch@vger.kernel.org
Subject: Re: [RFC PATCH 12/16] powerpc: locks: remove unused arch_*_relax operations
Date: Sat, 22 Jun 2013 08:16:00 +1000 [thread overview]
Message-ID: <1371852960.3944.79.camel@pasglop> (raw)
In-Reply-To: <1371835057-19335-13-git-send-email-will.deacon@arm.com>
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@kernel.crashing.org>
> Signed-off-by: Will Deacon <will.deacon@arm.com>
> ---
> 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 */
next prev parent reply other threads:[~2013-06-21 22:16 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-21 17:17 [RFC PATCH 00/16] Remove unused arch_*_relax operations from spinlocks Will Deacon
2013-06-21 17:17 ` [RFC PATCH 01/16] alpha: locks: remove unused arch_*_relax operations Will Deacon
2013-06-21 17:17 ` [RFC PATCH 02/16] arc: " Will Deacon
2013-06-24 4:12 ` Vineet Gupta
2013-06-24 8:58 ` Will Deacon
2013-06-21 17:17 ` [RFC PATCH 03/16] ARM: " Will Deacon
2013-06-21 17:17 ` [RFC PATCH 04/16] arm64: " Will Deacon
2013-06-21 17:17 ` [RFC PATCH 05/16] blackfin: " Will Deacon
2013-06-21 17:17 ` [RFC PATCH 06/16] cris: " Will Deacon
2013-06-24 6:41 ` Jesper Nilsson
2013-06-21 17:17 ` [RFC PATCH 07/16] ia64: " Will Deacon
2013-06-21 17:17 ` [RFC PATCH 08/16] m32r: " Will Deacon
2013-06-21 17:17 ` [RFC PATCH 09/16] metag: " Will Deacon
2013-06-24 9:07 ` James Hogan
2013-06-21 17:17 ` [RFC PATCH 10/16] mips: " Will Deacon
2013-06-21 17:48 ` David Daney
2013-06-21 17:17 ` [RFC PATCH 11/16] hppa: " Will Deacon
2013-06-21 17:17 ` [RFC PATCH 12/16] powerpc: " Will Deacon
2013-06-21 22:16 ` Benjamin Herrenschmidt [this message]
2013-06-21 17:17 ` [RFC PATCH 13/16] s390: " Will Deacon
2013-06-21 17:17 ` [RFC PATCH 14/16] sh: " Will Deacon
2013-06-21 17:17 ` [RFC PATCH 15/16] sparc: " Will Deacon
2013-06-21 19:18 ` David Miller
2013-06-21 17:17 ` [RFC PATCH 16/16] x86: " Will Deacon
2013-06-21 20:48 ` Thomas Gleixner
2013-06-24 11:58 ` [RFC PATCH 00/16] Remove unused arch_*_relax operations from spinlocks Will Deacon
2013-06-28 7:31 ` Martin Schwidefsky
2013-07-01 8:53 ` Will Deacon
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