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-rw-r--r--include/net/ip.h1
-rw-r--r--net/ipv4/ip_sockglue.c8
-rw-r--r--net/sunrpc/svcsock.c5
3 files changed, 11 insertions, 3 deletions
diff --git a/include/net/ip.h b/include/net/ip.h
index d3649c49dd33..04ebe7bf54c6 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -767,6 +767,7 @@ static inline bool inetdev_valid_mtu(unsigned int mtu)
void ip_sock_set_freebind(struct sock *sk);
int ip_sock_set_mtu_discover(struct sock *sk, int val);
+void ip_sock_set_pktinfo(struct sock *sk);
void ip_sock_set_recverr(struct sock *sk);
void ip_sock_set_tos(struct sock *sk, int val);
diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c
index aa115be11dcf..84ec3703c909 100644
--- a/net/ipv4/ip_sockglue.c
+++ b/net/ipv4/ip_sockglue.c
@@ -608,6 +608,14 @@ int ip_sock_set_mtu_discover(struct sock *sk, int val)
}
EXPORT_SYMBOL(ip_sock_set_mtu_discover);
+void ip_sock_set_pktinfo(struct sock *sk)
+{
+ lock_sock(sk);
+ inet_sk(sk)->cmsg_flags |= IP_CMSG_PKTINFO;
+ release_sock(sk);
+}
+EXPORT_SYMBOL(ip_sock_set_pktinfo);
+
/*
* Socket option code for IP. This is the end of the line after any
* TCP,UDP etc options on an IP socket.
diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c
index 6773dacc64d8..7a805d165689 100644
--- a/net/sunrpc/svcsock.c
+++ b/net/sunrpc/svcsock.c
@@ -616,9 +616,8 @@ static void svc_udp_init(struct svc_sock *svsk, struct svc_serv *serv)
/* make sure we get destination address info */
switch (svsk->sk_sk->sk_family) {
case AF_INET:
- level = SOL_IP;
- optname = IP_PKTINFO;
- break;
+ ip_sock_set_pktinfo(svsk->sk_sock->sk);
+ return;
case AF_INET6:
level = SOL_IPV6;
optname = IPV6_RECVPKTINFO;