From: Emil Tsalapatis <emil@etsalapatis.com>
To: netdev@vger.kernel.org
Cc: edumazet@google.com, ncardwell@google.com, kuniyu@google.com,
davem@davemloft.net, kuba@kernel.org, pabeni@redhat.com,
Emil Tsalapatis <emil@etsalapatis.com>
Subject: [PATCH net-next] net/tcp: Prevent inlining tcp_syn_ack_timeout()
Date: Wed, 8 Jul 2026 14:08:37 -0400 [thread overview]
Message-ID: <20260708180837.9507-1-emil@etsalapatis.com> (raw)
The tcp_syn_ack_timeout() function gets inlined by Clang,
preventing tracing. Since the call is not in the fast
path, prevent it from being inlined.
Signed-off-by: Emil Tsalapatis <emil@etsalapatis.com>
---
net/ipv4/tcp_timer.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
index bf171b5e1eb3..f7215d53bbda 100644
--- a/net/ipv4/tcp_timer.c
+++ b/net/ipv4/tcp_timer.c
@@ -748,7 +748,7 @@ static void tcp_write_timer(struct timer_list *t)
sock_put(sk);
}
-void tcp_syn_ack_timeout(const struct request_sock *req)
+noinline_for_tracing void tcp_syn_ack_timeout(const struct request_sock *req)
{
struct net *net = read_pnet(&inet_rsk(req)->ireq_net);
--
2.54.0
next reply other threads:[~2026-07-08 18:08 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-08 18:08 Emil Tsalapatis [this message]
2026-07-21 13:24 ` [PATCH net-next] net/tcp: Prevent inlining tcp_syn_ack_timeout() Paolo Abeni
2026-07-21 14:18 ` Eric Dumazet
2026-07-21 15:12 ` Jakub Kicinski
2026-07-21 16:03 ` Paolo Abeni
2026-07-21 16:20 ` patchwork-bot+netdevbpf
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