[RFC TLS Offload Support 02/15] tcp: export do_tcp_sendpages function

[Aviad Yehezkel <aviadye@mellanox.com>]

We will use it via tls new code.

Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com>
Signed-off-by: Ilya Lesokhin <ilyal@mellanox.com>
Signed-off-by: Boris Pismenny <borisp@mellanox.com>
---
 include/net/tcp.h | 2 ++
 net/ipv4/tcp.c    | 5 +++--
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/include/net/tcp.h b/include/net/tcp.h
index 207147b..3a72d4c 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -348,6 +348,8 @@ int tcp_v4_tw_remember_stamp(struct inet_timewait_sock *tw);
 int tcp_sendmsg(struct sock *sk, struct msghdr *msg, size_t size);
 int tcp_sendpage(struct sock *sk, struct page *page, int offset, size_t size,
 		 int flags);
+ssize_t do_tcp_sendpages(struct sock *sk, struct page *page, int offset,
+		 size_t size, int flags);
 void tcp_release_cb(struct sock *sk);
 void tcp_wfree(struct sk_buff *skb);
 void tcp_write_timer_handler(struct sock *sk);
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 1149b48..302fee9 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -873,8 +873,8 @@ static int tcp_send_mss(struct sock *sk, int *size_goal, int flags)
 	return mss_now;
 }
 
-static ssize_t do_tcp_sendpages(struct sock *sk, struct page *page, int offset,
-				size_t size, int flags)
+ssize_t do_tcp_sendpages(struct sock *sk, struct page *page, int offset,
+			 size_t size, int flags)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
 	int mss_now, size_goal;
@@ -1003,6 +1003,7 @@ static ssize_t do_tcp_sendpages(struct sock *sk, struct page *page, int offset,
 	}
 	return sk_stream_error(sk, flags, err);
 }
+EXPORT_SYMBOL(do_tcp_sendpages);
 
 int tcp_sendpage(struct sock *sk, struct page *page, int offset,
 		 size_t size, int flags)
-- 
2.7.4