Commit baea6f9b authored May 10, 2019 by Vineet Gupta Committed by Greg Kroah-Hartman Aug 11, 2023

ARCv2: entry: avoid a branch



[ Upstream commit ab854bfcd310b5872fe12eb8d3f2c30fe427f8f7 ]

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Stable-dep-of: 92e2921eeafd ("ARC: define ASM_NL and __ALIGN(_STR) outside #ifdef __ASSEMBLY__ guard")
Signed-off-by: Sasha Levin <sashal@kernel.org>

parent 648d4e39

arch/arc/include/asm/entry-arcv2.h

+2 −3

Original line number	Diff line number	Diff line
		@@ -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