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.le...@c-s.fr>
---
v2: new
v3: no change
v4: no change
v5: no change
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 169aba4..2dc74e5 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);
--
2.1.0
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