diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2014-11-06 07:10:59 +0100 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2014-11-24 11:16:39 +0100 |
| commit | 8feb2fb2bb986c533e18037d3c45a5f779421992 (patch) | |
| tree | 7c10e24137e82d54aaa533aeadc21a2d2dae922c /net/packet | |
| parent | kill zerocopy_sg_from_iovec() (diff) | |
| download | linux-8feb2fb2bb986c533e18037d3c45a5f779421992.tar.xz linux-8feb2fb2bb986c533e18037d3c45a5f779421992.zip | |
switch AF_PACKET and AF_UNIX to skb_copy_datagram_from_iter()
... and kill skb_copy_datagram_iovec()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'net/packet')
| -rw-r--r-- | net/packet/af_packet.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index 108d7f381b87..dfb148e9fdaa 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -2408,6 +2408,10 @@ static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len) unsigned short gso_type = 0; int hlen, tlen; int extra_len = 0; + struct iov_iter from; + ssize_t n; + + iov_iter_init(&from, WRITE, msg->msg_iov, msg->msg_iovlen, len); /* * Get and verify the address. @@ -2446,8 +2450,9 @@ static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len) len -= vnet_hdr_len; - err = memcpy_from_msg((void *)&vnet_hdr, msg, vnet_hdr_len); - if (err < 0) + err = -EFAULT; + n = copy_from_iter(&vnet_hdr, vnet_hdr_len, &from); + if (n != vnet_hdr_len) goto out_unlock; if ((vnet_hdr.flags & VIRTIO_NET_HDR_F_NEEDS_CSUM) && @@ -2517,7 +2522,7 @@ static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len) } /* Returns -EFAULT on error */ - err = skb_copy_datagram_from_iovec(skb, offset, msg->msg_iov, 0, len); + err = skb_copy_datagram_from_iter(skb, offset, &from, len); if (err) goto out_free; |