From ab854bfcd310b5872fe12eb8d3f2c30fe427f8f7 Mon Sep 17 00:00:00 2001 From: Vineet Gupta <vgupta@synopsys.com> Date: Fri, 10 May 2019 16:24:15 -0700 Subject: [PATCH] ARCv2: entry: avoid a branch Signed-off-by: Vineet Gupta <vgupta@synopsys.com> --- arch/arc/include/asm/entry-arcv2.h | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/arch/arc/include/asm/entry-arcv2.h b/arch/arc/include/asm/entry-arcv2.h index 3209a6762960..beaf655666cb 100644 --- a/arch/arc/include/asm/entry-arcv2.h +++ b/arch/arc/include/asm/entry-arcv2.h @@ -100,12 +100,11 @@ ; 2. Upon entry SP is always saved (for any inspection, unwinding etc), ; but on return, restored only if U mode + lr r9, [AUX_USER_SP] ; U mode SP + mov.nz r9, sp add.nz r9, r9, SZ_PT_REGS - PT_sp - 4 ; K mode SP - bnz 1f - lr r9, [AUX_USER_SP] ; U mode SP -1: PUSH r9 ; SP (pt_regs->sp) PUSH fp -- 2.30.9