From: Peter Zijlstra <peterz@infradead.org>
To: Will Deacon <will.deacon@arm.com>
Cc: linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, mingo@kernel.org
Subject: Re: [RFC PATCH 3/5] asm-generic/bitops/atomic.h: Rewrite using atomic_fetch_*
Date: Fri, 16 Feb 2018 15:18:29 +0100 [thread overview]
Message-ID: <20180216141829.GK25235@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <20180216103520.GC25201@hirez.programming.kicks-ass.net>
On Fri, Feb 16, 2018 at 11:35:20AM +0100, Peter Zijlstra wrote:
> #define BIT_U32_MASK(nr) (1UL << ((nr) % 32))
> #define BIT_U32_WORD(nr) (((nr) / 32) ^ (4 * __BIG_ENDIAN__))
s/4 *//
it's already a 4 byte offset.
next prev parent reply other threads:[~2018-02-16 14:18 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-15 15:29 [RFC PATCH 0/5] Rewrite asm-generic/bitops/atomic.h and use on arm64 Will Deacon
2018-02-15 15:29 ` [RFC PATCH 1/5] arm64: fpsimd: include <linux/init.h> in fpsimd.h Will Deacon
2018-02-15 15:29 ` [RFC PATCH 2/5] asm-generic: Avoid including linux/kernel.h in asm-generic/bug.h Will Deacon
2018-02-15 15:29 ` [RFC PATCH 3/5] asm-generic/bitops/atomic.h: Rewrite using atomic_fetch_* Will Deacon
2018-02-15 17:08 ` Peter Zijlstra
2018-02-15 18:20 ` Will Deacon
2018-02-16 10:21 ` Peter Zijlstra
2018-02-19 14:01 ` Will Deacon
2018-02-19 14:04 ` Peter Zijlstra
2018-02-16 10:35 ` Peter Zijlstra
2018-02-16 14:18 ` Peter Zijlstra [this message]
2018-02-19 14:01 ` Will Deacon
2018-02-19 14:05 ` Peter Zijlstra
2018-02-15 15:29 ` [RFC PATCH 4/5] arm64: Replace our atomic bitops implementation with asm-generic Will Deacon
2018-02-15 15:29 ` [RFC PATCH 5/5] arm64: bitops: Include <asm-generic/bitops/ext2-atomic-setbit.h> Will Deacon
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