diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 946de0e24c876bbbe63de71b5c7cef91cb967708..b4ee5c8b928f07879b3c7ed08ed5e9b67b08fcb4 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -4944,6 +4944,8 @@ static unsigned int skb_gso_mac_seglen(const struct sk_buff *skb)
  *
  * This is a helper to do that correctly considering GSO_BY_FRAGS.
  *
+ * @skb: GSO skb
+ *
  * @seg_len: The segmented length (from skb_gso_*_seglen). In the
  *           GSO_BY_FRAGS case this will be [header sizes + GSO_BY_FRAGS].
  *