[RFC PATCH 3/5] asm-generic/bitops/atomic.h: Rewrite using atomic_fetch_*
From: peterz@infradead.org (Peter Zijlstra)
Date: 2018-02-16 14:18:37
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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.