From nobody Sun Feb 8 05:41:57 2026 Received: from mail-pl1-f172.google.com (mail-pl1-f172.google.com [209.85.214.172]) (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 1549012C469 for ; Wed, 17 Apr 2024 08:52:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.172 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713343938; cv=none; b=c06rwEX5DUfatLfSMaeTsPXHHf3q2aQKasObqCZegdTtbWQDOS6JwyiRHpS9NubR2R/VdbhQojvk4hf6nBwj5vCzbHqbPNId8uhkAZA0A+RcFUsAI3muzkIcrJBqEsvkTDxoHS7Gj5KgDA/UelEl8N/AGsmu5M08W7NbPKMp37c= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713343938; c=relaxed/simple; bh=9+NXcmGwyt344ac+65+IFERA0aeIWelc23La2k0MJFY=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=CkTEGSrMJQoH5W5mG5QgLkSkiKoO0Y4kqvKV62xzEBIDRG7VVYr+npAWuvZ5hGRQCuKB3M+9JdRo9g4ppGv+887xG1Kt91xgRjh5MqD7arOo/qKwlI2Gmp0dN0SXRds1qBkk5d9EOs2xeO5z6FS59KtuLWFh9UJfRepgeLis9pk= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=JENumfJ/; arc=none smtp.client-ip=209.85.214.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="JENumfJ/" Received: by mail-pl1-f172.google.com with SMTP id d9443c01a7336-1e51398cc4eso49685885ad.2 for ; Wed, 17 Apr 2024 01:52:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1713343936; x=1713948736; darn=lists.linux.dev; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=UXPsQyON3TFtDQR7bYganuNlYsXI10vIvS6F+4BgaXc=; b=JENumfJ/IXnZ2r5pZnmEE2PtVmV0TYRzrwSeLdNV8hp/F2ankDTr5p8TuizYR/50jf STrLfHCLvU6anM3ukRik3+r+a/JB9u/u1w3sPOyngu7n4fF7DXS7P0tcNcsnvp44KuxK LkYTp7DMafO+7CCMqNaDByaz6NkxO6A6li8K3LpZA1lcXxlUqUopW6cmCqlENqb2orlC ZGWAN4O3VASZMxlU9BvixT9SuJJ2MnHedDgJl+20TIZQaV5r8d7QTYERUjZQJec4ecJX V60vQEM6kO9RAokHOL3b9Uh+sjb8alDQk/gA/WHR8Y7f7/NBaJJ+qG2hNLTvKWhgk2fb df3A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1713343936; x=1713948736; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=UXPsQyON3TFtDQR7bYganuNlYsXI10vIvS6F+4BgaXc=; b=pjrz4XaNMso0TWFFuqkP56FGJlh3YGld+n7nSl2vLGzy2VmCLMU4gorsRg1oTjHN9J 8c/ii/wAEh3boiI8GN8r3F5NSWjJ2CAO8dnLpZ9dGgtGemzBd6rdWBAfB8XIgsYUHOXz jhqmfCAQkawzYmYNdObSGhDGC3SVBty3/dC+LZay0yPc7joNwP7pro1Ohip7ISyt3qrY W4nph86GJSsCF5pURmGBbUqvPY1GIiR9rhw/NObhnW+ZFV4MzHGmFfF0CY8UYjNOeOMZ PxtkWFHJT5+o8Wp0x37+zAPafQD5sbml9IajwLd5KPhJBO1HgjqCSgUUtnrNNd4E8cc1 zdcA== X-Gm-Message-State: AOJu0YzSTG5AoTFtVT6vmhK2jUu/vy4HT9b2uS6pOUIdYibm9WPjRqL1 nhO8N2R/INsfTiTCGDBFfl7CquipAPmjYcnMGWoQ5SF3VR3JX1Qf X-Google-Smtp-Source: AGHT+IGpyr2TT4oCCA250B5rHj8g9n6uOg+JRF31TmN7I0IAFPbNd+V2kkEZb14DBv3LVjmfH0GqdA== X-Received: by 2002:a17:902:d4ce:b0:1e5:5cab:92ee with SMTP id o14-20020a170902d4ce00b001e55cab92eemr19923004plg.33.1713343936501; Wed, 17 Apr 2024 01:52:16 -0700 (PDT) Received: from KERNELXING-MB0.tencent.com ([43.132.141.25]) by smtp.gmail.com with ESMTPSA id y16-20020a17090264d000b001e452f47ba1sm11348611pli.173.2024.04.17.01.52.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 17 Apr 2024 01:52:16 -0700 (PDT) From: Jason Xing To: edumazet@google.com, dsahern@kernel.org, matttbe@kernel.org, martineau@kernel.org, geliang@kernel.org, kuba@kernel.org, pabeni@redhat.com, davem@davemloft.net, rostedt@goodmis.org, mhiramat@kernel.org, mathieu.desnoyers@efficios.com, atenart@kernel.org Cc: mptcp@lists.linux.dev, netdev@vger.kernel.org, linux-trace-kernel@vger.kernel.org, kerneljasonxing@gmail.com, Jason Xing Subject: [PATCH net-next v6 6/7] mptcp: introducing a helper into active reset logic Date: Wed, 17 Apr 2024 16:51:42 +0800 Message-Id: <20240417085143.69578-7-kerneljasonxing@gmail.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20240417085143.69578-1-kerneljasonxing@gmail.com> References: <20240417085143.69578-1-kerneljasonxing@gmail.com> Precedence: bulk X-Mailing-List: mptcp@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Jason Xing Since we have mapped every mptcp reset reason definition in enum sk_rst_reason, introducing a new helper can cover some missing places where we have already set the subflow->reset_reason. Note: using SK_RST_REASON_NOT_SPECIFIED is the same as SK_RST_REASON_MPTCP_RST_EUNSPEC. They are both unknown. So we can convert it directly. Suggested-by: Paolo Abeni Signed-off-by: Jason Xing --- Link: https://lore.kernel.org/all/2d3ea199eef53cf6a0c48e21abdee0eefbdee927.= camel@redhat.com/ --- net/mptcp/protocol.c | 4 +--- net/mptcp/protocol.h | 11 +++++++++++ net/mptcp/subflow.c | 6 ++---- 3 files changed, 14 insertions(+), 7 deletions(-) diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c index 065967086492..4b13ca362efa 100644 --- a/net/mptcp/protocol.c +++ b/net/mptcp/protocol.c @@ -21,7 +21,6 @@ #endif #include #include -#include #include #include "protocol.h" #include "mib.h" @@ -2570,8 +2569,7 @@ static void mptcp_check_fastclose(struct mptcp_sock *= msk) =20 slow =3D lock_sock_fast(tcp_sk); if (tcp_sk->sk_state !=3D TCP_CLOSE) { - tcp_send_active_reset(tcp_sk, GFP_ATOMIC, - SK_RST_REASON_NOT_SPECIFIED); + mptcp_send_active_reset_reason(tcp_sk); tcp_set_state(tcp_sk, TCP_CLOSE); } unlock_sock_fast(tcp_sk, slow); diff --git a/net/mptcp/protocol.h b/net/mptcp/protocol.h index fdfa843e2d88..82ef2f42a1bc 100644 --- a/net/mptcp/protocol.h +++ b/net/mptcp/protocol.h @@ -12,6 +12,7 @@ #include #include #include +#include =20 #include "mptcp_pm_gen.h" =20 @@ -581,6 +582,16 @@ mptcp_subflow_ctx_reset(struct mptcp_subflow_context *= subflow) WRITE_ONCE(subflow->local_id, -1); } =20 +static inline void +mptcp_send_active_reset_reason(struct sock *sk) +{ + struct mptcp_subflow_context *subflow =3D mptcp_subflow_ctx(sk); + enum sk_rst_reason reason; + + reason =3D convert_mptcp_reason(subflow->reset_reason); + tcp_send_active_reset(sk, GFP_ATOMIC, reason); +} + static inline u64 mptcp_subflow_get_map_offset(const struct mptcp_subflow_context *subflow) { diff --git a/net/mptcp/subflow.c b/net/mptcp/subflow.c index bde4a7fdee82..4783d558863c 100644 --- a/net/mptcp/subflow.c +++ b/net/mptcp/subflow.c @@ -20,7 +20,6 @@ #include #endif #include -#include =20 #include "protocol.h" #include "mib.h" @@ -424,7 +423,7 @@ void mptcp_subflow_reset(struct sock *ssk) /* must hold: tcp_done() could drop last reference on parent */ sock_hold(sk); =20 - tcp_send_active_reset(ssk, GFP_ATOMIC, SK_RST_REASON_NOT_SPECIFIED); + mptcp_send_active_reset_reason(ssk); tcp_done(ssk); if (!test_and_set_bit(MPTCP_WORK_CLOSE_SUBFLOW, &mptcp_sk(sk)->flags)) mptcp_schedule_work(sk); @@ -1362,8 +1361,7 @@ static bool subflow_check_data_avail(struct sock *ssk) tcp_set_state(ssk, TCP_CLOSE); while ((skb =3D skb_peek(&ssk->sk_receive_queue))) sk_eat_skb(ssk, skb); - tcp_send_active_reset(ssk, GFP_ATOMIC, - SK_RST_REASON_NOT_SPECIFIED); + mptcp_send_active_reset_reason(ssk); WRITE_ONCE(subflow->data_avail, false); return false; } --=20 2.37.3