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authorRichard Cochran <richardcochran@gmail.com>2013-07-19 19:40:09 +0200
committerDavid S. Miller <davem@davemloft.net>2013-07-22 14:58:19 -0700
commitcb820f8e4b7f73d1a32175e6591735b25bb5398d (patch)
tree0a361e6465be4bd549c17d957708d2e280914f21 /net/packet
parent0887a576a17965732270b2f8d37821fc02ef2feb (diff)
downloadlinux-cb820f8e4b7f73d1a32175e6591735b25bb5398d.tar.gz
net: Provide a generic socket error queue delivery method for Tx time stamps.
This patch moves the private error queue delivery function from the af_packet code to the core socket method. In this way, network layers only needing the error queue for transmit time stamping can share common code. Signed-off-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/packet')
-rw-r--r--net/packet/af_packet.c48
1 files changed, 2 insertions, 46 deletions
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index 4b66c752eae5..4cb28a7f639b 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -2638,51 +2638,6 @@ out:
return err;
}
-static int packet_recv_error(struct sock *sk, struct msghdr *msg, int len)
-{
- struct sock_exterr_skb *serr;
- struct sk_buff *skb, *skb2;
- int copied, err;
-
- err = -EAGAIN;
- skb = skb_dequeue(&sk->sk_error_queue);
- if (skb == NULL)
- goto out;
-
- copied = skb->len;
- if (copied > len) {
- msg->msg_flags |= MSG_TRUNC;
- copied = len;
- }
- err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied);
- if (err)
- goto out_free_skb;
-
- sock_recv_timestamp(msg, sk, skb);
-
- serr = SKB_EXT_ERR(skb);
- put_cmsg(msg, SOL_PACKET, PACKET_TX_TIMESTAMP,
- sizeof(serr->ee), &serr->ee);
-
- msg->msg_flags |= MSG_ERRQUEUE;
- err = copied;
-
- /* Reset and regenerate socket error */
- spin_lock_bh(&sk->sk_error_queue.lock);
- sk->sk_err = 0;
- if ((skb2 = skb_peek(&sk->sk_error_queue)) != NULL) {
- sk->sk_err = SKB_EXT_ERR(skb2)->ee.ee_errno;
- spin_unlock_bh(&sk->sk_error_queue.lock);
- sk->sk_error_report(sk);
- } else
- spin_unlock_bh(&sk->sk_error_queue.lock);
-
-out_free_skb:
- kfree_skb(skb);
-out:
- return err;
-}
-
/*
* Pull a packet from our receive queue and hand it to the user.
* If necessary we block.
@@ -2708,7 +2663,8 @@ static int packet_recvmsg(struct kiocb *iocb, struct socket *sock,
#endif
if (flags & MSG_ERRQUEUE) {
- err = packet_recv_error(sk, msg, len);
+ err = sock_recv_errqueue(sk, msg, len,
+ SOL_PACKET, PACKET_TX_TIMESTAMP);
goto out;
}