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-rw-r--r--drivers/md/dm-switch.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/md/dm-switch.c b/drivers/md/dm-switch.c
index 8d0ba879777e..8f9208c2d2e3 100644
--- a/drivers/md/dm-switch.c
+++ b/drivers/md/dm-switch.c
@@ -466,7 +466,8 @@ static int process_set_region_mappings(struct switch_ctx *sctx,
*
* Only set_region_mappings is supported.
*/
-static int switch_message(struct dm_target *ti, unsigned argc, char **argv)
+static int switch_message(struct dm_target *ti, unsigned argc, char **argv,
+ char *result, unsigned maxlen)
{
static DEFINE_MUTEX(message_mutex);
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