From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 87564C87FCF for ; Thu, 14 Aug 2025 01:29:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-Type: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=dQOMBCaDoHlKYhc6z7ZAvpkcb/oHjnoCwkcWxtxbAbE=; b=U1khqqL7sR3rPECdHSxDt2d/ja tlFhZlSx3uEAegceSu/kZwFiRP0Cfj8psJF3LgxuO5cRTl0Hn0931JKf1fRGaTlpbARkFebZG5k9i d5v+XmRWbfD1ZTz8IaDsOsQubZP7sZt/rBalRXewX96JPR1NLTRF1DqUgsttsYZF51l826GKBKW/m 5SlEU0/PC3SUPF1RhF2gsjzXlIkzrUpHu57yWWnXdsM5e4eKECMLSgohFl0QWMOUVXxDixOOk236W uUMy5mufkE3sC8f4Vu0vkiWVBr5bHIxb8Oj4zOfrarXy4cMwa1+2BT5TicgQ1tj2rg7k+lILDCzMO d4WTOmbg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1umMm2-0000000FUqJ-1IGj; Thu, 14 Aug 2025 01:28:58 +0000 Received: from mail-pf1-x42d.google.com ([2607:f8b0:4864:20::42d]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1umMjP-0000000FUGE-3s09; Thu, 14 Aug 2025 01:26:17 +0000 Received: by mail-pf1-x42d.google.com with SMTP id d2e1a72fcca58-76e2e5d244cso510579b3a.0; Wed, 13 Aug 2025 18:26:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1755134775; x=1755739575; darn=lists.infradead.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=dQOMBCaDoHlKYhc6z7ZAvpkcb/oHjnoCwkcWxtxbAbE=; b=W5cnDbsi0IlJtttjvLIYX3wccK724op4Gn/B5NwSj9RxAWf89arQ2giNsS9v/RIoyg J6jtS8N0Q92veRvSez4xa0vipJusiCqEbrq6hEvujPL5FXW9oXrkOm7PZZINeqoZW30G 9L5F4pZsFPfyO2N7zqSAXNoCX6L8IGid98gLcyEhM8CtoYE6G3fyQ+MBdOun5xIAS5zt 5PURIoSkQ2sDS0UpsEmrxmZeumQCsCtVDprQ46OIMQ2BcFmR3w3tM7gRwhr+s8N0GzAE GzMmvsoBmOLqVk/S6A+I/d+GKvBaw8LuVfvjJpvLMppgHCADi23+MwnRzkeJfP8+GCEi 3x0A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1755134775; x=1755739575; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=dQOMBCaDoHlKYhc6z7ZAvpkcb/oHjnoCwkcWxtxbAbE=; b=YFL2btbxJPJ9EXqHMra6ULxXeHGK0dQ+XeBnT2qXTFVnyiPmyfl9sih2GrST9TDZsQ O7UP9a00HbkeAn5h2tF8NiFuDT/Le0Onn1T5uNFT8ottUfDIuhLm0Dmm6CbSy+HQGdGl Frclb7a0v8uwqgfHDBnElhJ9Ha0UZ80jXivTbTkF3P+SGnXOXPHdVKpoSVPFN6fK2T+P N8gfvB2D3MPq6exiUbX4hTHUcrnpQ5kXndJR/3tOAR7sWjoYfjBP2cWQlHz7k84gs24f hbihvRp+G3ALTc7fy6IQy6ZKw2s6FEbkwhp6Fmp2eeWlghukbqWWl+VW4OmuPfHccjMI gxgA== X-Forwarded-Encrypted: i=1; AJvYcCU9RoEeO8rqLj4rHOehk/kIxUWRrJ7pk6W116j9JDYL8gq3pQT3OyyZxpkBmDxFGEY9ZODKD62lZsQM002s9J83@lists.infradead.org, AJvYcCUs1DgLVqURMAVLLgkh8g05+sqOez9ddhtHHZD67curauxAzqLst+I1sM7QYGm8A17y6R5LzhTx0+UI8vCrwaU=@lists.infradead.org X-Gm-Message-State: AOJu0Yz1jb7US23l8z7kV9JRaz7rXhnMgCHe14NbITOvkQax7bDTT20R kzaAT3anuBUWQsX5I0kT1debNUemjS9JcqRSs0wmW3uSEjmFSsP8OoW3LvodwrvC3cM= X-Gm-Gg: ASbGncvyxuoCnIRLjh3wvaZ14H3mQOkmQBbbS6GF97I58DISB3sJKQ9D3ej6c2rqrak Q82kR6lvrLKAcYjIhA/nMKeRaUvWUk2Hj+OAE/wKkzViEc9lqOh9DHDZhmrGFJSccFtt7wTqD1a GUHKIp7sGn7DBnG/+2DnpsPPnOo1kQQhVTFIfovjBQk/ylRWqTCVrteQzgfab9vRoikfjOXFSKG 5/u1YkEGQ2nfLgtx2rwiwBsu+FSaBs8tbSLEFO1Sv9CplM5TjZynRap8cyt68P9nRRk2U6Bn2kW +MphgsbnvKuyO3XekWuAogUprqU4ZUnc8ODl3XJXTcsaPv6Ih66zFPkkUPn4aAgecDDxnGuBcxW gKsBaA4FJHedX X-Google-Smtp-Source: AGHT+IEh+W8HKgLfDi5M/QKUU3nxoRXj22fu9X7Eskeo4rSZSdxEWF8Y0c8Z7alihJjJAt7Dsu1uZw== X-Received: by 2002:a05:6a20:1611:b0:240:20d:47cc with SMTP id adf61e73a8af0-240bcfbda2emr1411418637.1.1755134774572; Wed, 13 Aug 2025 18:26:14 -0700 (PDT) Received: from gmail.com ([223.166.85.89]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-b424ca987desm23395786a12.40.2025.08.13.18.26.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 13 Aug 2025 18:26:14 -0700 (PDT) From: Qingfang Deng To: Felix Fietkau , Sean Wang , Lorenzo Bianconi , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Matthias Brugger , AngeloGioacchino Del Regno , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org Cc: Kuniyuki Iwashima Subject: [PATCH net v3 1/2] net: ethernet: mtk_ppe: add RCU lock around dev_fill_forward_path Date: Thu, 14 Aug 2025 09:25:57 +0800 Message-ID: <20250814012559.3705-1-dqfext@gmail.com> X-Mailer: git-send-email 2.43.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250813_182615_964433_465D02F9 X-CRM114-Status: UNSURE ( 9.13 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Ensure ndo_fill_forward_path() is called with RCU lock held. Fixes: 2830e314778d ("net: ethernet: mtk-ppe: fix traffic offload with bridged wlan") Signed-off-by: Qingfang Deng --- v3: Reorder the patch to be first. v2: New patch drivers/net/ethernet/mediatek/mtk_ppe_offload.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/ethernet/mediatek/mtk_ppe_offload.c b/drivers/net/ethernet/mediatek/mtk_ppe_offload.c index c855fb799ce1..e9bd32741983 100644 --- a/drivers/net/ethernet/mediatek/mtk_ppe_offload.c +++ b/drivers/net/ethernet/mediatek/mtk_ppe_offload.c @@ -101,7 +101,9 @@ mtk_flow_get_wdma_info(struct net_device *dev, const u8 *addr, struct mtk_wdma_i if (!IS_ENABLED(CONFIG_NET_MEDIATEK_SOC_WED)) return -1; + rcu_read_lock(); err = dev_fill_forward_path(dev, addr, &stack); + rcu_read_unlock(); if (err) return err; -- 2.43.0