1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index d811462ab9b6..9cb04e29ad13 100644
--- a/drivers/net/igb/igb_main.c
+++ b/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;