From: Ursula Braun
Date: Thu, 24 Nov 2016 16:06:31 +0100
> diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
> index 3ea1cf8..9b1602a 100644
> --- a/net/ipv4/tcp_timer.c
> +++ b/net/ipv4/tcp_timer.c
> @@ -617,6 +617,7 @@ void tcp_set_keepalive(struct sock *sk, int val)
> else if (!va
Direct call of tcp_set_keepalive() function from protocol-agnostic
sock_setsockopt() function in net/core/sock.c violates network
layering. And newly introduced protocol (SMC-R) will need its own
keepalive function. Therefore, add "keepalive" function pointer
to "struct proto", and call it from soc
