tcp: expose the tcp_mark_push() and tcp_skb_entail() helpers

the tcp_skb_entail() helper is actually skb_entail(), renamed
to provide proper scope.

    The two helper will be used by the next patch.

RFC -> v1:
 - rename skb_entail to tcp_skb_entail (Eric)

Acked-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/tcp.h b/include/net/tcp.h
index 3166dc1..4a96f6e 100644 (file)
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -581,6 +581,8 @@ __u32 cookie_v6_init_sequence(const struct sk_buff *skb, __u16 *mss);
 #endif
 /* tcp_output.c */
 
+void tcp_skb_entail(struct sock *sk, struct sk_buff *skb);
+void tcp_mark_push(struct tcp_sock *tp, struct sk_buff *skb);
 void __tcp_push_pending_frames(struct sock *sk, unsigned int cur_mss,
                               int nonagle);
 int __tcp_retransmit_skb(struct sock *sk, struct sk_buff *skb, int segs);

diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index e8b48df..c592454 100644 (file)
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -647,7 +647,7 @@ int tcp_ioctl(struct sock *sk, int cmd, unsigned long arg)
 }
 EXPORT_SYMBOL(tcp_ioctl);
 
-static inline void tcp_mark_push(struct tcp_sock *tp, struct sk_buff *skb)
+void tcp_mark_push(struct tcp_sock *tp, struct sk_buff *skb)
 {
        TCP_SKB_CB(skb)->tcp_flags |= TCPHDR_PSH;
        tp->pushed_seq = tp->write_seq;
@@ -658,7 +658,7 @@ static inline bool forced_push(const struct tcp_sock *tp)
        return after(tp->write_seq, tp->pushed_seq + (tp->max_window >> 1));
 }
 
-static void skb_entail(struct sock *sk, struct sk_buff *skb)
+void tcp_skb_entail(struct sock *sk, struct sk_buff *skb)
 {
        struct tcp_sock *tp = tcp_sk(sk);
        struct tcp_skb_cb *tcb = TCP_SKB_CB(skb);
@@ -985,7 +985,7 @@ new_segment:
 #ifdef CONFIG_TLS_DEVICE
                skb->decrypted = !!(flags & MSG_SENDPAGE_DECRYPTED);
 #endif
-               skb_entail(sk, skb);
+               tcp_skb_entail(sk, skb);
                copy = size_goal;
        }
 
@@ -1314,7 +1314,7 @@ new_segment:
                        process_backlog++;
                        skb->ip_summed = CHECKSUM_PARTIAL;
 
-                       skb_entail(sk, skb);
+                       tcp_skb_entail(sk, skb);
                        copy = size_goal;
 
                        /* All packets are restored as if they have