[PATCH] powerpc/64: Remove static branch hints from memset()
From: Anton Blanchard <hidden>
Date: 2018-08-21 01:04:14
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
From: Anton Blanchard <redacted> Static branch hints override dynamic branch prediction on recent POWER CPUs. We should only use them when we are overwhelmingly sure of the direction. Signed-off-by: Anton Blanchard <redacted> --- arch/powerpc/lib/mem_64.S | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/lib/mem_64.S b/arch/powerpc/lib/mem_64.S
index ec531de99996..3c3be02f33b7 100644
--- a/arch/powerpc/lib/mem_64.S
+++ b/arch/powerpc/lib/mem_64.S@@ -40,7 +40,7 @@ _GLOBAL(memset) .Lms: PPC_MTOCRF(1,r0) mr r6,r3 blt cr1,8f - beq+ 3f /* if already 8-byte aligned */ + beq 3f /* if already 8-byte aligned */ subf r5,r0,r5 bf 31,1f stb r4,0(r6)
@@ -85,7 +85,7 @@ _GLOBAL(memset) addi r6,r6,8 8: cmpwi r5,0 PPC_MTOCRF(1,r5) - beqlr+ + beqlr bf 29,9f stw r4,0(r6) addi r6,r6,4
--
2.17.1