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authorHeiko Carstens <heiko.carstens@de.ibm.com>2016-12-13 12:51:19 +0100
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2016-12-14 16:33:41 +0100
commitf1c7ea26178176ca783cc2ac54f211630344290c (patch)
tree63be17655f5248faa857e0adcf48ee649e702844 /arch/s390
parent86fa7087d348b6c8a159c77ea20e530ee1230c34 (diff)
downloadlinux-f1c7ea26178176ca783cc2ac54f211630344290c.tar.bz2
s390/extmem: add missing memory clobber to dcss_set_subcodes
Add the missing memory clobber / barrier to dcss_set_subcodes() to tell the compiler that the inline assembly accesses memory (name string). Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390')
-rw-r--r--arch/s390/mm/extmem.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/s390/mm/extmem.c b/arch/s390/mm/extmem.c
index 02042b6b66bf..362237203144 100644
--- a/arch/s390/mm/extmem.c
+++ b/arch/s390/mm/extmem.c
@@ -122,7 +122,7 @@ dcss_set_subcodes(void)
"1: la %2,3\n"
"2:\n"
EX_TABLE(0b, 1b)
- : "+d" (rx), "+d" (ry), "=d" (rc) : : "cc");
+ : "+d" (rx), "+d" (ry), "=d" (rc) : : "cc", "memory");
kfree(name);
/* Diag x'64' new subcodes are supported, set to new subcodes */