diff --git a/[refs] b/[refs]
index 5a749692c930..a1980f890597 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 2e85ba510ede4aea1b150493407ae911e8ea5051
+refs/heads/master: 41b42876772bb8c1cbd7e68d384791f97a5fd0d6
diff --git a/trunk/arch/s390/mm/cmm.c b/trunk/arch/s390/mm/cmm.c
index 4bddf8d3a150..a9550dca3e4b 100644
--- a/trunk/arch/s390/mm/cmm.c
+++ b/trunk/arch/s390/mm/cmm.c
@@ -435,6 +435,13 @@ static int __init cmm_init(void)
 	if (!cmm_sysctl_header)
 		goto out_sysctl;
 #ifdef CONFIG_CMM_IUCV
+	/* convert sender to uppercase characters */
+	if (sender) {
+		int len = strlen(sender);
+		while (len--)
+			sender[len] = toupper(sender[len]);
+	}
+
 	rc = smsg_register_callback(SMSG_PREFIX, cmm_smsg_target);
 	if (rc < 0)
 		goto out_smsg;
diff --git a/trunk/drivers/s390/net/smsgiucv_app.c b/trunk/drivers/s390/net/smsgiucv_app.c
index 137688790207..4d2ea4000422 100644
--- a/trunk/drivers/s390/net/smsgiucv_app.c
+++ b/trunk/drivers/s390/net/smsgiucv_app.c
@@ -180,6 +180,13 @@ static int __init smsgiucv_app_init(void)
 		goto fail_put_driver;
 	}
 
+	/* convert sender to uppercase characters */
+	if (sender) {
+		int len = strlen(sender);
+		while (len--)
+			sender[len] = toupper(sender[len]);
+	}
+
 	/* register with the smsgiucv device driver */
 	rc = smsg_register_callback(SMSG_PREFIX, smsg_app_callback);
 	if (rc) {