Christoph Hellwig <hch at lst.de> wrote: > + ip_sock_set_mtu_discover(conn->params.local->socket->sk, > + IP_PMTUDISC_DONT); Um... The socket in question could be an AF_INET6 socket, not an AF_INET4 socket - I presume it will work in that case. If so: Reviewed-by: David Howells <dhowells at redhat.com> [rxrpc bits]