From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f171.google.com (mail-pl1-f171.google.com [209.85.214.171]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 434B226738C for ; Wed, 8 Jul 2026 18:08:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.171 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783534123; cv=none; b=KEaRhts0mTNCbhveQd4R4QCLpYDQcbRAWgb5p/TX/of1hheGECiQbJA6yzFJHHjeVzhupd967CmPyR3FjtR/iZrEGX43PWqi9BDnPcyggSeQFveO4azs9wfSYonOwj69kfiegTRhgVwaxZtSDTf53rT9Cu4B4UvQwLBa6jqkkyQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783534123; c=relaxed/simple; bh=KbokKl5nrwSqS7Q/jI+MxYq0pfmbv1r0nrns1022QFQ=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=E6ChGRlPc38i9lJq5lxmg7Cn0maQIb7BSdRY9DE38NdkRGPiOYHq3ZiU8GOZfuZ70ddUc1/JkXCWDMOuo/grmfH6Nbd8cBi/VIfgSC0npj+rKJ8tHPvnY4SOWqlVteFGQlskfWc/3nhmKgMuZRx0i+uCfiwSVG/v2QOyPF1HyAQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=etsalapatis.com; spf=pass smtp.mailfrom=etsalapatis.com; dkim=pass (2048-bit key) header.d=etsalapatis-com.20251104.gappssmtp.com header.i=@etsalapatis-com.20251104.gappssmtp.com header.b=FKIgk6y+; arc=none smtp.client-ip=209.85.214.171 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=etsalapatis.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=etsalapatis.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=etsalapatis-com.20251104.gappssmtp.com header.i=@etsalapatis-com.20251104.gappssmtp.com header.b="FKIgk6y+" Received: by mail-pl1-f171.google.com with SMTP id d9443c01a7336-2c6b67d5fa1so799285ad.2 for ; Wed, 08 Jul 2026 11:08:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=etsalapatis-com.20251104.gappssmtp.com; s=20251104; t=1783534121; x=1784138921; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to:content-type; bh=TX0UR4nd5ReWUWVY7VHdaquK1A7gNg1IcwsjKOi92tM=; b=FKIgk6y+0DuEjLIEzZLU+I9Ul3gMGuBThZVnzkebqKww/kMhp2zw7svb50nKozDz0h NowvP4Vij1fI8QwhXpe+9x3Ze7tmVrY8EY7ZQ7Rt34q4SHCQO0CD8fs2Fphafryc+arc WitUpMQzVYk4UY7ICK419XImFQfVsO8HADT/BFSvHwdPu7LZqs8Qvz6dvdEkqBYNm5wM r10/ALqH0vPXewEqyKWXQPb/1r0TVf9nWsJYk8Et5o+KqCvNj7EVoqrLjTsYAKeHZN/0 W5n6xH5lt0ScxOby69r4Af7D9VfD2II8Sk+EQWcl0pwAjl+pSK21TVYF2yKZU9GG9hrp uKXA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1783534121; x=1784138921; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to:content-type; bh=TX0UR4nd5ReWUWVY7VHdaquK1A7gNg1IcwsjKOi92tM=; b=fIKaVxiHpuY8MCKgtscKF655ubllLEzpqfsjv+6vJ1FotTE+tF1AlGd+vvW5vVJHXX sTPsK8PYepNRBS/uPOg+NDjcCNuRFkWpo6yhH//ViUhuybXHobcXt50n3xsVNVH24ECj YHAFce2fwMm4TyBXVMt3h1RSJLLH0Snf/cF+kNiOhNey7UU77b887T07gVlL921aUGeu sSqUjsRb1eb1UptUtvN2/+Jo8wWBPtBT1j7QTyju0XruWVbuxAvkOAxSByfVOU9Xaxi7 +9RuA70o3rrVqdtiPfA5Ae9btlOWz5F1hLQ6vosGFS9MIuJSEn5t5813fmXrZXb8bQEM sdoA== X-Gm-Message-State: AOJu0YzBJxsF0wsg6RqYUtVRtv1NRlco9EOCFeSLTvVBKi+uxJM6tWJH Kh8ppp/5sC/EWdN6VyuHqXsQvkedAMh15Nimh3UZTkgAkFG51qSdxgVGDTwuCdNX3W1vaqgmUjW HjFcfNQ68Hg== X-Gm-Gg: AfdE7ckTmSpKPx12EDBrbEl5k4yfuGAnf+X2O8KKhg5GBq+/tZvbV257eygyHyivEK4 ebu1m83mBlA1KCNXo3bUbkO3pLZoEp9bOBhVUt4bbA4obCbm5KaO5qXHXApfKrI2U1uBusRbzD4 mS0PY6UWeRg0ek4ecJkysapNhnNQyI1hHObV+MB2UdAKVf/xpmwkN2haDQkG8csUi2VhfmZYRHK X7QvToWHHuyqYEZHGig6Zo4D1rXHBkPEUphe1Ni+NgfB+xiXfcviPoinQLUHBaZuqGEI8YAWAYx uZFU41nIuk20vXTj+MK2LnF5wpB5bpcqQLPEnPj4GBiX1jMxZBOCBe+77h2AMKQhiCIIjA6f1TE t/3wLUJsqlCjz6inDByVp8rc5mPydzWlSpuIoxc2/JPEhUNPHCXfBscXlmabhFJVixy6axaMOC3 k3+zw6zK/Y X-Received: by 2002:a17:90b:57cd:b0:37f:9ce1:7369 with SMTP id 98e67ed59e1d1-389416ec46emr3507540a91.31.1783534121438; Wed, 08 Jul 2026 11:08:41 -0700 (PDT) Received: from krios.corp.tfbnw.net ([2620:10d:c090:600::7d75]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-311747f596asm22158810eec.2.2026.07.08.11.08.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 08 Jul 2026 11:08:41 -0700 (PDT) From: Emil Tsalapatis 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 Subject: [PATCH net-next] net/tcp: Prevent inlining tcp_syn_ack_timeout() Date: Wed, 8 Jul 2026 14:08:37 -0400 Message-ID: <20260708180837.9507-1-emil@etsalapatis.com> X-Mailer: git-send-email 2.54.0 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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 --- 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