1 files changed, 2 insertions, 1 deletions

diff --git a/include/linux/ipmi.h b/include/linux/ipmi.h
index dd30adedd07d..938d55b813a5 100644
--- a/include/linux/ipmi.h
+++ b/include/linux/ipmi.h
@@ -242,7 +242,8 @@ struct ipmi_recv_msg
         /* The user_msg_data is the data supplied when a message was
            sent, if this is a response to a sent message.  If this is
            not a response to a sent message, then user_msg_data will
-           be NULL. */
+           be NULL.  If the user above is NULL, then this will be the
+           intf. */
         void             *user_msg_data;
 
         /* Call this when done with the message.  It will presumably free