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authorPhilippe Schenker <philippe.schenker@toradex.com>2022-05-19 16:29:13 +0200
committerPhilippe Schenker <philippe.schenker@toradex.com>2022-05-19 16:29:13 +0200
commite6fb5c32f78f99682821f91b3959e222c93e4cb9 (patch)
tree3f6c281a7d83a6e3c0a153f93718f7cd9a39b6f7 /net/ipv4/tcp_output.c
parent585dc27c53b6c1a32a7e11b724e91d7297388a13 (diff)
parentb7007e1d615b8d4b71c28ebf790c5164fc4491d5 (diff)
Merge remote-tracking branch 'gh-fslc/5.4-2.3.x-imx' into toradex_5.4-2.3.x-imx
Diffstat (limited to 'net/ipv4/tcp_output.c')
-rw-r--r--net/ipv4/tcp_output.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 638d7b49ad71..67493ec6318a 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -81,6 +81,7 @@ static void tcp_event_new_data_sent(struct sock *sk, struct sk_buff *skb)
NET_ADD_STATS(sock_net(sk), LINUX_MIB_TCPORIGDATASENT,
tcp_skb_pcount(skb));
+ tcp_check_space(sk);
}
/* SND.NXT, if window was not shrunk or the amount of shrunk was less than one
@@ -3492,6 +3493,7 @@ static void tcp_connect_queue_skb(struct sock *sk, struct sk_buff *skb)
*/
static int tcp_send_syn_data(struct sock *sk, struct sk_buff *syn)
{
+ struct inet_connection_sock *icsk = inet_csk(sk);
struct tcp_sock *tp = tcp_sk(sk);
struct tcp_fastopen_request *fo = tp->fastopen_req;
int space, err = 0;
@@ -3506,8 +3508,10 @@ static int tcp_send_syn_data(struct sock *sk, struct sk_buff *syn)
* private TCP options. The cost is reduced data space in SYN :(
*/
tp->rx_opt.mss_clamp = tcp_mss_clamp(tp, tp->rx_opt.mss_clamp);
+ /* Sync mss_cache after updating the mss_clamp */
+ tcp_sync_mss(sk, icsk->icsk_pmtu_cookie);
- space = __tcp_mtu_to_mss(sk, inet_csk(sk)->icsk_pmtu_cookie) -
+ space = __tcp_mtu_to_mss(sk, icsk->icsk_pmtu_cookie) -
MAX_TCP_OPTION_SPACE;
space = min_t(size_t, space, fo->size);