3 files changed, 5 insertions, 2 deletions

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index a45bba9b8cbd..16eef03ce0eb 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -215,6 +215,8 @@ enum {
  *      @nf_bridge: Saved data about a bridged frame - see br_netfilter.c
  *      @tc_index: Traffic control index
  *      @tc_verd: traffic control verdict
+ *      @dma_cookie: a cookie to one of several possible DMA operations
+ *              done by skb DMA functions
  *      @secmark: security marking
  */
 
diff --git a/include/net/sock.h b/include/net/sock.h
index a897f05de3b5..2d8d6adf1616 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -1269,6 +1269,7 @@ sock_recv_timestamp(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
  * sk_eat_skb - Release a skb if it is no longer needed
  * @sk: socket to eat this skb from
  * @skb: socket buffer to eat
+ * @copied_early: flag indicating whether DMA operations copied this data early
  *
  * This routine must be called with interrupts disabled or with the socket
  * locked so that the sk_buff queue operation is ok.
diff --git a/net/core/dev.c b/net/core/dev.c
index d293e0f90a0c..9b8f0f22c81d 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -3418,8 +3418,8 @@ static void net_dma_rebalance(void)
 /**
  * netdev_dma_event - event callback for the net_dma_client
  * @client: should always be net_dma_client
- * @chan:
- * @event:
+ * @chan: DMA channel for the event
+ * @event: event type
  */
 static void netdev_dma_event(struct dma_client *client, struct dma_chan *chan,
         enum dma_event event)