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net: Add and use skb_copy_datagram_msg() helper.

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This encapsulates all of the skb_copy_datagram_iovec() callers
with call argument signature "skb, offset, msghdr->msg_iov, length".

When we move to iov_iters in the networking, the iov_iter object will
sit in the msghdr.

Having a helper like this means there will be less places to touch
during that transformation.

Based upon descriptions and patch from Al Viro.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
2014-11-05 16:46:40 -05:00
parent 1d76c1d028
commit 51f3d02b98
43 changed files with 58 additions and 57 deletions
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2
net/caif/caif_socket.c
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@@ -293,7 +293,7 @@ static int caif_seqpkt_recvmsg(struct kiocb *iocb, struct socket *sock,
copylen = len;
}
ret = skb_copy_datagram_iovec(skb, 0, m->msg_iov, copylen);
ret = skb_copy_datagram_msg(skb, 0, m, copylen);
if (ret)
goto out_free;