MIPS: bitops: Avoid redundant zero-comparison for non-LLSC

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The IRQ-disabling non-LLSC fallbacks for bitops on UP systems already
return a zero or one, so there's no need to perform another comparison
against zero. Move these comparisons into the LLSC paths to avoid the
redundant work.

Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Cc: Huacai Chen <chenhc@lemote.com>
Cc: Jiaxun Yang <jiaxun.yang@flygoat.com>
Cc: linux-kernel@vger.kernel.org

...

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Paul Burton 2019-10-01 21:53:32 +00:00

parent d6103510e7

commit aad028cadb

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1 changed files with 12 additions and 6 deletions

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arch/mips/include/asm/bitops.h

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