From 0bb605c2c7f2b4b314b91510810b226de7f34fa1 Mon Sep 17 00:00:00 2001
From: Michael Karcher <kernel@mkarcher.dialup.fu-berlin.de>
Date: Thu, 23 Jul 2020 01:13:21 +0200
Subject: sh: Add SECCOMP_FILTER

Port sh to use the new SECCOMP_FILTER code.

Signed-off-by: Michael Karcher <kernel@mkarcher.dialup.fu-berlin.de>
Tested-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Signed-off-by: Rich Felker <dalias@libc.org>
---
 arch/sh/kernel/entry-common.S | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'arch/sh/kernel/entry-common.S')

diff --git a/arch/sh/kernel/entry-common.S b/arch/sh/kernel/entry-common.S
index c4d88d61890d..ad963104d22d 100644
--- a/arch/sh/kernel/entry-common.S
+++ b/arch/sh/kernel/entry-common.S
@@ -368,6 +368,8 @@ syscall_trace_entry:
 	mov.l	7f, r11		! Call do_syscall_trace_enter which notifies
 	jsr	@r11	    	! superior (will chomp R[0-7])
 	 nop
+	cmp/eq	#-1, r0
+	bt	syscall_exit
 	mov.l	r0, @(OFF_R0,r15)	! Save return value
 	!			Reload R0-R4 from kernel stack, where the
 	!   	    	    	parent may have modified them using
-- 
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