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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2016-12-13 12:51:19 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2016-12-14 16:33:41 +0100 |
| commit | f1c7ea26178176ca783cc2ac54f211630344290c (patch) | |
| tree | 63be17655f5248faa857e0adcf48ee649e702844 /arch/s390 | |
| parent | s390/nmi: fix inline assembly constraints (diff) | |
| download | linux-f1c7ea26178176ca783cc2ac54f211630344290c.tar.xz linux-f1c7ea26178176ca783cc2ac54f211630344290c.zip | |
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.c | 2 |
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 */ |