diff --git a/net/caif/cfutill.c b/net/caif/cfutill.c
index 02795af..efad410 100644
--- a/net/caif/cfutill.c
+++ b/net/caif/cfutill.c
@@ -4,6 +4,8 @@
  * License terms: GNU General Public License (GPL) version 2
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ":%s(): " fmt, __func__
+
 #include <linux/kernel.h>
 #include <linux/types.h>
 #include <linux/slab.h>
@@ -26,7 +28,7 @@
 {
 	struct cfsrvl *util = kmalloc(sizeof(struct cfsrvl), GFP_ATOMIC);
 	if (!util) {
-		pr_warning("CAIF: %s(): Out of memory\n", __func__);
+		pr_warn("Out of memory\n");
 		return NULL;
 	}
 	caif_assert(offsetof(struct cfsrvl, layer) == 0);
@@ -47,7 +49,7 @@
 	caif_assert(layr->up->receive != NULL);
 	caif_assert(layr->up->ctrlcmd != NULL);
 	if (cfpkt_extr_head(pkt, &cmd, 1) < 0) {
-		pr_err("CAIF: %s(): Packet is erroneous!\n", __func__);
+		pr_err("Packet is erroneous!\n");
 		cfpkt_destroy(pkt);
 		return -EPROTO;
 	}
@@ -64,16 +66,14 @@
 		cfpkt_destroy(pkt);
 		return 0;
 	case UTIL_REMOTE_SHUTDOWN:	/* Remote Shutdown Request */
-		pr_err("CAIF: %s(): REMOTE SHUTDOWN REQUEST RECEIVED\n",
-			__func__);
+		pr_err("REMOTE SHUTDOWN REQUEST RECEIVED\n");
 		layr->ctrlcmd(layr, CAIF_CTRLCMD_REMOTE_SHUTDOWN_IND, 0);
 		service->open = false;
 		cfpkt_destroy(pkt);
 		return 0;
 	default:
 		cfpkt_destroy(pkt);
-		pr_warning("CAIF: %s(): Unknown service control %d (0x%x)\n",
-			   __func__, cmd, cmd);
+		pr_warn("Unknown service control %d (0x%x)\n", cmd, cmd);
 		return -EPROTO;
 	}
 }