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Commit cab41c47 authored by Alexander Duyck's avatar Alexander Duyck Committed by David S. Miller
Browse files

skb: Add documentation for skb_clone_sk 



This change adds some documentation to the call skb_clone_sk.  This is
meant to help clarify the purpose of the function for other developers.

Signed-off-by: default avatarAlexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 72b126a4

net/core/skbuff.c

+13 −0
Original line number Diff line number Diff line
@@ -3511,6 +3511,19 @@ struct sk_buff *sock_dequeue_err_skb(struct sock *sk) 
}

EXPORT_SYMBOL(sock_dequeue_err_skb);



/**

 * skb_clone_sk - create clone of skb, and take reference to socket

 * @skb: the skb to clone

 *

 * This function creates a clone of a buffer that holds a reference on

 * sk_refcnt.  Buffers created via this function are meant to be

 * returned using sock_queue_err_skb, or free via kfree_skb.

 *

 * When passing buffers allocated with this function to sock_queue_err_skb

 * it is necessary to wrap the call with sock_hold/sock_put in order to

 * prevent the socket from being released prior to being enqueued on

 * the sk_error_queue.

 */

struct sk_buff *skb_clone_sk(struct sk_buff *skb)

{

	struct sock *sk = skb->sk;