diff --git a/[refs] b/[refs]
index 6f192c62679e..40cfee02f363 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 8d420a1b3ea65357b6eb59e4e742248d2838e904
+refs/heads/master: de42edde131cd09a556f0b90373569d64b92ef99
diff --git a/trunk/drivers/net/igb/igb_main.c b/trunk/drivers/net/igb/igb_main.c
index d811462ab9b6..9cb04e29ad13 100644
--- a/trunk/drivers/net/igb/igb_main.c
+++ b/trunk/drivers/net/igb/igb_main.c
@@ -4974,6 +4974,10 @@ static void igb_vf_reset_msg(struct igb_adapter *adapter, u32 vf)
 
 static int igb_set_vf_mac_addr(struct igb_adapter *adapter, u32 *msg, int vf)
 {
+	/*
+	 * The VF MAC Address is stored in a packed array of bytes
+	 * starting at the second 32 bit word of the msg array
+	 */
 	unsigned char *addr = (char *)&msg[1];
 	int err = -1;