[PATCH v4 04/16] MIPS: VDSO: Fix clobber lists in fallback code paths

From	Aleksandar Markovic <aleksandar.markovic@rt-rk.com>
Newsgroups	linux.kernel
Subject	[PATCH v4 04/16] MIPS: VDSO: Fix clobber lists in fallback code paths
Date	2017-07-27 18:20 +0200
Message-ID	<u7TG2-8lQ-21@gated-at.bofh.it> (permalink)
References	<u7TG1-8lQ-3@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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From: Goran Ferenc <goran.ferenc@imgtec.com>

Extend clobber lists to include all GP registers.

Fixes: 0b523a85e134 ("MIPS: VDSO: Add implementation of gettimeofday() fallback")

Signed-off-by: Miodrag Dinic <miodrag.dinic@imgtec.com>
Signed-off-by: Goran Ferenc <goran.ferenc@imgtec.com>
Signed-off-by: Aleksandar Markovic <aleksandar.markovic@imgtec.com>
Reviewed-by: James Hogan <james.hogan@imgtec.com>
---
 arch/mips/vdso/gettimeofday.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/mips/vdso/gettimeofday.c b/arch/mips/vdso/gettimeofday.c
index 974276e..e2690d7 100644
--- a/arch/mips/vdso/gettimeofday.c
+++ b/arch/mips/vdso/gettimeofday.c
@@ -35,7 +35,8 @@ static __always_inline long gettimeofday_fallback(struct timeval *_tv,
 	"       syscall\n"
 	: "=r" (ret), "=r" (error)
 	: "r" (tv), "r" (tz), "r" (nr)
-	: "memory");
+	: "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13",
+	  "$14", "$15", "$24", "$25", "hi", "lo", "memory");
 
 	return error ? -ret : ret;
 }
@@ -55,7 +56,8 @@ static __always_inline long clock_gettime_fallback(clockid_t _clkid,
 	"       syscall\n"
 	: "=r" (ret), "=r" (error)
 	: "r" (clkid), "r" (ts), "r" (nr)
-	: "memory");
+	: "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13",
+	  "$14", "$15", "$24", "$25", "hi", "lo", "memory");
 
 	return error ? -ret : ret;
 }
-- 
2.7.4

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[PATCH v4 04/16] MIPS: VDSO: Fix clobber lists in fallback code paths Aleksandar Markovic <aleksandar.markovic@rt-rk.com> - 2017-07-27 18:20 +0200

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