From 68bfa962bff5783ad65de9dc7f3b9e16ea466766 Mon Sep 17 00:00:00 2001 From: Anton Blanchard Date: Thu, 29 Oct 2015 11:43:56 +1100 Subject: [PATCH] powerpc: Remove redundant mflr in _switch No need to execute mflr twice. Signed-off-by: Anton Blanchard Signed-off-by: Michael Ellerman --- arch/powerpc/kernel/entry_64.S | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S index e84e5bc7fe34..c8b4225a0095 100644 --- a/arch/powerpc/kernel/entry_64.S +++ b/arch/powerpc/kernel/entry_64.S @@ -452,9 +452,7 @@ _GLOBAL(_switch) /* r3-r13 are caller saved -- Cort */ SAVE_8GPRS(14, r1) SAVE_10GPRS(22, r1) - mflr r20 /* Return to switch caller */ - - std r20,_NIP(r1) + std r0,_NIP(r1) /* Return to switch caller */ mfcr r23 std r23,_CCR(r1) std r1,KSP(r3) /* Set old stack pointer */ -- 2.30.2