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authorWillem de Bruijn <willemb@google.com>2014-11-26 14:53:02 -0500
committerDavid S. Miller <davem@davemloft.net>2014-11-26 15:45:04 -0500
commitf4713a3dfad045d46afcb9c2a7d0bba288920ed4 (patch)
treede3059b95872e46370f0d61348044b6cb2b5981b /net/ipv4/ping.c
parenta7650238a0cf82d84d1d7aff4383f84807616d8f (diff)
downloadop-kernel-dev-f4713a3dfad045d46afcb9c2a7d0bba288920ed4.zip
op-kernel-dev-f4713a3dfad045d46afcb9c2a7d0bba288920ed4.tar.gz
net-timestamp: make tcp_recvmsg call ipv6_recv_error for AF_INET6 socks
TCP timestamping introduced MSG_ERRQUEUE handling for TCP sockets. If the socket is of family AF_INET6, call ipv6_recv_error instead of ip_recv_error. This change is more complex than a single branch due to the loadable ipv6 module. It reuses a pre-existing indirect function call from ping. The ping code is safe to call, because it is part of the core ipv6 module and always present when AF_INET6 sockets are active. Fixes: 4ed2d765 (net-timestamp: TCP timestamping) Signed-off-by: Willem de Bruijn <willemb@google.com> ---- It may also be worthwhile to add WARN_ON_ONCE(sk->family == AF_INET6) to ip_recv_error. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/ping.c')
-rw-r--r--net/ipv4/ping.c12
1 files changed, 2 insertions, 10 deletions
diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c
index 85a02a7..5d740cc 100644
--- a/net/ipv4/ping.c
+++ b/net/ipv4/ping.c
@@ -855,16 +855,8 @@ int ping_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
if (flags & MSG_OOB)
goto out;
- if (flags & MSG_ERRQUEUE) {
- if (family == AF_INET) {
- return ip_recv_error(sk, msg, len, addr_len);
-#if IS_ENABLED(CONFIG_IPV6)
- } else if (family == AF_INET6) {
- return pingv6_ops.ipv6_recv_error(sk, msg, len,
- addr_len);
-#endif
- }
- }
+ if (flags & MSG_ERRQUEUE)
+ return inet_recv_error(sk, msg, len, addr_len);
skb = skb_recv_datagram(sk, flags, noblock, &err);
if (!skb)
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