netdev - [PATCH net-next 3/3] tcp: remove size parameter from tcp_stream_alloc

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Date: Fri,  9 Jun 2023 20:42:46 +0000
From: Eric Dumazet <edumazet@...gle.com>
To: "David S . Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>, 
	Paolo Abeni <pabeni@...hat.com>
Cc: netdev@...r.kernel.org, eric.dumazet@...il.com, 
	Eric Dumazet <edumazet@...gle.com>
Subject: [PATCH net-next 3/3] tcp: remove size parameter from tcp_stream_alloc_skb()

Now all tcp_stream_alloc_skb() callers pass @size == 0, we can
remove this parameter.

Signed-off-by: Eric Dumazet <edumazet@...gle.com>
---
 include/net/tcp.h     |  2 +-
 net/ipv4/tcp.c        |  6 +++---
 net/ipv4/tcp_output.c | 10 +++++-----
 3 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/include/net/tcp.h b/include/net/tcp.h
index f718ed258f07caedca41d01670b1c91fc11e2233..bf9f56225821fbb0b7a377b51b3b597b95985b4c 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -350,7 +350,7 @@ void tcp_twsk_purge(struct list_head *net_exit_list, int family);
 ssize_t tcp_splice_read(struct socket *sk, loff_t *ppos,
 			struct pipe_inode_info *pipe, size_t len,
 			unsigned int flags);
-struct sk_buff *tcp_stream_alloc_skb(struct sock *sk, int size, gfp_t gfp,
+struct sk_buff *tcp_stream_alloc_skb(struct sock *sk, gfp_t gfp,
 				     bool force_schedule);
 
 void tcp_enter_quickack_mode(struct sock *sk, unsigned int max_quickacks);
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index da7f156d9fad93b0ab97cd52bc9e7f9cd3822ea2..fba6578bc98f98feae8afea522e113ea3994eea0 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -858,12 +858,12 @@ ssize_t tcp_splice_read(struct socket *sock, loff_t *ppos,
 }
 EXPORT_SYMBOL(tcp_splice_read);
 
-struct sk_buff *tcp_stream_alloc_skb(struct sock *sk, int size, gfp_t gfp,
+struct sk_buff *tcp_stream_alloc_skb(struct sock *sk, gfp_t gfp,
 				     bool force_schedule)
 {
 	struct sk_buff *skb;
 
-	skb = alloc_skb_fclone(size + MAX_TCP_HEADER, gfp);
+	skb = alloc_skb_fclone(MAX_TCP_HEADER, gfp);
 	if (likely(skb)) {
 		bool mem_scheduled;
 
@@ -1178,7 +1178,7 @@ int tcp_sendmsg_locked(struct sock *sk, struct msghdr *msg, size_t size)
 					goto restart;
 			}
 			first_skb = tcp_rtx_and_write_queues_empty(sk);
-			skb = tcp_stream_alloc_skb(sk, 0, sk->sk_allocation,
+			skb = tcp_stream_alloc_skb(sk, sk->sk_allocation,
 						   first_skb);
 			if (!skb)
 				goto wait_for_space;
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index fedbe842abdd027a95f2ac7960185fd2906a04bc..660eac4bf2a77080def76b4ee8ae6fbfc4e13284 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -1558,7 +1558,7 @@ int tcp_fragment(struct sock *sk, enum tcp_queue tcp_queue,
 		return -ENOMEM;
 
 	/* Get a new skb... force flag on. */
-	buff = tcp_stream_alloc_skb(sk, 0, gfp, true);
+	buff = tcp_stream_alloc_skb(sk, gfp, true);
 	if (!buff)
 		return -ENOMEM; /* We'll just try again later. */
 	skb_copy_decrypted(buff, skb);
@@ -2118,7 +2118,7 @@ static int tso_fragment(struct sock *sk, struct sk_buff *skb, unsigned int len,
 	/* All of a TSO frame must be composed of paged data.  */
 	DEBUG_NET_WARN_ON_ONCE(skb->len != skb->data_len);
 
-	buff = tcp_stream_alloc_skb(sk, 0, gfp, true);
+	buff = tcp_stream_alloc_skb(sk, gfp, true);
 	if (unlikely(!buff))
 		return -ENOMEM;
 	skb_copy_decrypted(buff, skb);
@@ -2434,7 +2434,7 @@ static int tcp_mtu_probe(struct sock *sk)
 		return -1;
 
 	/* We're allowed to probe.  Build it now. */
-	nskb = tcp_stream_alloc_skb(sk, 0, GFP_ATOMIC, false);
+	nskb = tcp_stream_alloc_skb(sk, GFP_ATOMIC, false);
 	if (!nskb)
 		return -1;
 
@@ -3811,7 +3811,7 @@ static int tcp_send_syn_data(struct sock *sk, struct sk_buff *syn)
 	    !skb_page_frag_refill(min_t(size_t, space, PAGE_SIZE),
 				  pfrag, sk->sk_allocation))
 		goto fallback;
-	syn_data = tcp_stream_alloc_skb(sk, 0, sk->sk_allocation, false);
+	syn_data = tcp_stream_alloc_skb(sk, sk->sk_allocation, false);
 	if (!syn_data)
 		goto fallback;
 	memcpy(syn_data->cb, syn->cb, sizeof(syn->cb));
@@ -3896,7 +3896,7 @@ int tcp_connect(struct sock *sk)
 		return 0;
 	}
 
-	buff = tcp_stream_alloc_skb(sk, 0, sk->sk_allocation, true);
+	buff = tcp_stream_alloc_skb(sk, sk->sk_allocation, true);
 	if (unlikely(!buff))
 		return -ENOBUFS;
 
-- 
2.41.0.162.gfafddb0af9-goog