From 8478d7f091138be32154c8fc28c52978e342cc6f Mon Sep 17 00:00:00 2001 From: Christophe Leroy <christophe.leroy@c-s.fr> Date: Tue, 9 Feb 2016 17:08:29 +0100 Subject: [PATCH] powerpc: Simplify test in __dma_sync() This simplification helps the compiler. We now have only one test instead of two, so it reduces the number of branches. Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Scott Wood <oss@buserror.net> --- arch/powerpc/mm/dma-noncoherent.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/mm/dma-noncoherent.c b/arch/powerpc/mm/dma-noncoherent.c index 169aba446a740..2dc74e5c64584 100644 --- a/arch/powerpc/mm/dma-noncoherent.c +++ b/arch/powerpc/mm/dma-noncoherent.c @@ -327,7 +327,7 @@ void __dma_sync(void *vaddr, size_t size, int direction) * invalidate only when cache-line aligned otherwise there is * the potential for discarding uncommitted data from the cache */ - if ((start & (L1_CACHE_BYTES - 1)) || (size & (L1_CACHE_BYTES - 1))) + if ((start | end) & (L1_CACHE_BYTES - 1)) flush_dcache_range(start, end); else invalidate_dcache_range(start, end); -- 2.30.2