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ipv4: add ip_sock_set_pktinfo

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Add a helper to directly set the IP_PKTINFO sockopt from kernel
space without going through a fake uaccess.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Christoph Hellwig
2020-05-28 07:12:30 +02:00
committed by David S. Miller
parent 2de569bda2
commit c1f9ec5776
3 changed files with 11 additions and 3 deletions
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5
net/sunrpc/svcsock.c
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@@ -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;