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authorUrsula Braun <ubraun@linux.vnet.ibm.com>2017-01-09 18:55:12 +0300
committerDavid S. Miller <davem@davemloft.net>2017-01-10 00:07:37 +0300
commit4b9d07a44015a0e940448fa3885b894349e8b162 (patch)
treec812e6e8a8415b77dbd190e4609d40a1b307e243 /net/ipv4/tcp_timer.c
parentc8584b3fdf7429ed2a830dd1f7435bbf45122afa (diff)
downloadlinux-4b9d07a44015a0e940448fa3885b894349e8b162.tar.xz
net: introduce keepalive function in struct proto
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 sock_setsockopt() via this pointer. Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com> Reviewed-by: Utz Bacher <utz.bacher@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp_timer.c')
-rw-r--r--net/ipv4/tcp_timer.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
index 3705075f42c3..29a9bd5f1225 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 (!val)
inet_csk_delete_keepalive_timer(sk);
}
+EXPORT_SYMBOL_GPL(tcp_set_keepalive);
static void tcp_keepalive_timer (unsigned long data)