Commit 46d0d2c8 authored Feb 01, 2006 by Peter Oberparleiter Committed by Linus Torvalds Feb 01, 2006

[PATCH] s390: Add missing memory constraint to stcrw()



Add missing memory constraint to stcrw() inline assembly.

Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

parent b1969fa4

drivers/s390/s390mach.h

+9 −8

Original line number	Diff line number	Diff line
		@@ -93,11 +93,12 @@ static inline int stcrw(struct crw *pcrw )
		int ccode;

		__asm__ __volatile__(
		"STCRW 0(%1)\n\t"
		"IPM %0\n\t"
		"SRL %0,28\n\t"
		: "=d" (ccode) : "a" (pcrw)
		: "cc", "1" );
		"stcrw 0(%2)\n\t"
		"ipm %0\n\t"
		"srl %0,28\n\t"
		: "=d" (ccode), "=m" (*pcrw)
		: "a" (pcrw)
		: "cc" );
		return ccode;
		}