diff mbox series

[kvm-unit-tests,PULL,3/6] s390x: lib: fix stfl wrapper asm

Message ID 20200130131116.12386-4-david@redhat.com (mailing list archive)
State New, archived
Headers show
Series [kvm-unit-tests,PULL,1/6] s390x: export sclp_setup_int | expand

Commit Message

David Hildenbrand Jan. 30, 2020, 1:11 p.m. UTC 
From: Claudio Imbrenda <imbrenda@linux.ibm.com>

the stfl wrapper in lib/s390x/asm/facility.h was lacking the "memory"
clobber in the inline asm.

Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Message-Id: <20200120184256.188698-4-imbrenda@linux.ibm.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
---
 lib/s390x/asm/facility.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/lib/s390x/asm/facility.h b/lib/s390x/asm/facility.h
index 5103dd4..e34dc2c 100644
--- a/lib/s390x/asm/facility.h
+++ b/lib/s390x/asm/facility.h
@@ -24,7 +24,7 @@  static inline bool test_facility(int nr)
 
 static inline void stfl(void)
 {
-	asm volatile("	stfl	0(0)\n");
+	asm volatile("	stfl	0(0)\n" : : : "memory");
 }
 
 static inline void stfle(uint8_t *fac, unsigned int len)