[PATCH 5.15 080/136] tcp: expose the tcp_mark_push() and tcp_skb_entail() helpers

Greg Kroah-Hartman
2022-08-29T11:10:56Z

From: Paolo Abeni <pabeni@redhat.com>

[ Upstream commit 04d8825c30b718781197c8f07b1915a11bfb8685 ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
include/net/tcp.h | 2 ++
net/ipv4/tcp.c | 8 ++++----
2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/include/net/tcp.h b/include/net/tcp.h
index 76b0d7f2b967f..d3646645cb9ec 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -571,6 +571,8 @@ __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 2097eeaf30a67..52f51717f02f3 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -644,7 +644,7 @@ 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;
@@ -655,7 +655,7 @@ 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);
@@ -982,7 +982,7 @@ struct sk_buff *tcp_build_frag(struct sock *sk, int size_goal, int flags,
#ifdef CONFIG_TLS_DEVICE
skb->decrypted = !!(flags & MSG_SENDPAGE_DECRYPTED);
#endif
- skb_entail(sk, skb);
+ tcp_skb_entail(sk, skb);
copy = size_goal;
}

@@ -1312,7 +1312,7 @@ int tcp_sendmsg_locked(struct sock *sk, struct msghdr *msg, size_t size)
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
--
2.35.1