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authorTom Herbert <therbert@google.com>2015-01-05 21:56:17 (GMT)
committerDavid S. Miller <davem@davemloft.net>2015-01-06 03:44:46 (GMT)
commitad6f939ab193750cc94a265f58e007fb598c97b7 (patch)
treef00a55adcedfde95441ed2ec498a2a294623522e /net/ipv4/udp.c
parent5961de9f199bef6ff437d7d85fe69b6a1964739b (diff)
downloadlinux-ad6f939ab193750cc94a265f58e007fb598c97b7.tar.xz
ip: Add offset parameter to ip_cmsg_recv
Add ip_cmsg_recv_offset function which takes an offset argument that indicates the starting offset in skb where data is being received from. This will be useful in the case of UDP and provided checksum to user space. ip_cmsg_recv is an inline call to ip_cmsg_recv_offset with offset of zero. Signed-off-by: Tom Herbert <therbert@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/udp.c')
-rw-r--r--net/ipv4/udp.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 53358d8..97ef1f8b 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -1329,7 +1329,7 @@ try_again:
*addr_len = sizeof(*sin);
}
if (inet->cmsg_flags)
- ip_cmsg_recv(msg, skb);
+ ip_cmsg_recv_offset(msg, skb, sizeof(struct udphdr));
err = copied;
if (flags & MSG_TRUNC)