md: Fix "strchr" [drivers/md/dm-log-userspace.ko] undefined!

Commit 4cdbf55aad23b84778385db62f1abdb381008ccb ("dm log: remove incorrect
field from userspace table output") added a call to strstr() with a
single-character "needle" string parameter.

Unfortunately some versions of gcc replace such calls to strstr() by calls
to strchr() behind our back.  This causes linking errors if strchr() is
defined as an inline function in <asm/string.h> (e.g. on m68k):

| WARNING: "strchr" [drivers/md/dm-log-userspace.ko] undefined!

Avoid this by explicitly calling strchr() instead.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/drivers/md/dm-log-userspace-base.c b/drivers/md/dm-log-userspace-base.c
index 6e186b1a062d39bbf020788483c2d1bde85541a2..652bd33109e3333b97bd307514a24f7553241078 100644 (file)
--- a/drivers/md/dm-log-userspace-base.c
+++ b/drivers/md/dm-log-userspace-base.c
@@ -582,7 +582,7 @@ static int userspace_status(struct dm_dirty_log *log, status_type_t status_type,
                break;
        case STATUSTYPE_TABLE:
                sz = 0;
-               table_args = strstr(lc->usr_argv_str, " ");
+               table_args = strchr(lc->usr_argv_str, ' ');
                BUG_ON(!table_args); /* There will always be a ' ' */
                table_args++;