[PATCH net-next] net/tcp: Prevent inlining tcp_syn_ack_timeout()
From: Emil Tsalapatis <emil@etsalapatis.com>
Date: 2026-07-08 18:08:41
Subsystem:
networking [general], networking [tcp], the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Neal Cardwell, Linus Torvalds
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);
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2.54.0