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-rw-r--r--drivers/staging/greybus/loopback.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/staging/greybus/loopback.c b/drivers/staging/greybus/loopback.c
index c35d22733a36..3f32dee1ec93 100644
--- a/drivers/staging/greybus/loopback.c
+++ b/drivers/staging/greybus/loopback.c
@@ -6,6 +6,9 @@
*
* Released under the GPLv2 only.
*/
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/mutex.h>