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 X-Spam-Level: X-Spam-Status: No, score=-13.7 required=3.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED,DKIM_SIGNED,DKIM_VALID,FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2A104C433B4 for ; Fri, 23 Apr 2021 05:36:12 +0000 (UTC) Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id C7EDF613FA for ; Fri, 23 Apr 2021 05:36:11 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C7EDF613FA Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=desiato.20200630; h=Sender:Content-Transfer-Encoding :Content-Type:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-Id:Date: Subject:Cc:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=NM245tHvazk6BSu472y4c4x92k3OWQtMB+5aSjlSob4=; b=I8B8Of/fjC3UGr2C3oqLLFjat PPrzQTgN6GaBZYlOjCOEqWh0mDFv+gzx7rMPXpU+pPOWRU/0dvFJ/aumHnfsGIImCKAmhPyJpH9C4 1xEteNcizjW2oXD6NFxLoXvAgW2GQzEgxep65b7PzHrdkyG31Sn0BAYSw/zjMqf1QjitWC2bH7aG8 slCiBpzIXpqQNRlA/hVdUAYeV4/Nng02LX/YiDbYM9D+60qhNQwDhhM2Wkw8uGErIimG29ny3TitO FDY5WvjEMiHlHEjKYcGcrt7/aDQ5cDoQUMNbvFbH8lNdJcLmiUpaxCoV5vocnRxIM+ZmHojlIkjOZ vAQjUuYkQ==; Received: from localhost ([::1] helo=desiato.infradead.org) by desiato.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1lZoS6-000ifP-Ez; Fri, 23 Apr 2021 05:34:06 +0000 Received: from mail-pl1-x62d.google.com ([2607:f8b0:4864:20::62d]) by desiato.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lZoHk-000fbU-Da; Fri, 23 Apr 2021 05:26:03 +0000 Received: by mail-pl1-x62d.google.com with SMTP id s20so8835854plr.13; Thu, 22 Apr 2021 22:23:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=HlVoF4WBd28mr16LsVXI69/qoWczDKwnY5ulmKa3JqU=; b=PJqw7qbCVerNFMqSHMZJzZ+oDBUc8T1s4RQIMW64itnCYPn5unf5oOv9h5yu4Tv80a e1PEbJY4tA4JypLmdonjfmuV92iSNxIZiEfeLwgsjYsBBDq3nG6rWkKTJNIwTZAcCRpX /n4i//CxaXnSkPlW4l5365q/tShaCQswbt0Fs0/h4x+dDnGprpxCccXJbISBjtSIqCzS S032twqbKbFTD6jmzp4E4db8WyOnFKEIGhKQ+cTmEPH7Bg/pz+E9JrTj2Ca9WhDHFeQp Ro1FaVrnmMf71olrDnUNLHHaee+6dRtHpgS8O4aBHVHQpcO906KVNgmRx9ePq4/roMSn YwXA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=HlVoF4WBd28mr16LsVXI69/qoWczDKwnY5ulmKa3JqU=; b=JJPMWwhjCuRBnIjqHUMuHAealqJfBBDaFf7wrjZpdEX4XlTWuHBE/Kghmh2jaj/drN fBvNgZBzsz/6+7JHT4DwrBTQNpHxSuzLjn/5eGfRvEALp0nvIk6sjjAZbYMH/Z9PAc3t PTTAYVfEu00rvLI3iJu3XY33Z+5/7ZRS0XH5JgCyRGHxoX09eL1ThKWdfQNSeabtLOzN rXNGLvpD+mVkCHZEJ2502qRMrQ3YW0iMER/mVu+QPqUaAXFC8iSLOzQTcnzVDBE0wugw /xDYjDVipBa6WKRiepipSd7hv2Xy13y7/VqA2+bk0hYQtwjf3DsQmT0xe7opwtbe4Wb3 Whyw== X-Gm-Message-State: AOAM5314tiIowqC36hEUObSqSxXLtwttPONmaDQnAvC1tFZJYrbMse8j hMLsZePrAEqXFSspPGqxfOc= X-Google-Smtp-Source: ABdhPJxfR910IzfiJ+sHCtn/47cz6QgVT8Cwpw1BicgmMT5qd/MKnS0aDxdWUSWwkQH3YllxqCDcNQ== X-Received: by 2002:a17:90a:fb87:: with SMTP id cp7mr3818203pjb.78.1619155280763; Thu, 22 Apr 2021 22:21:20 -0700 (PDT) Received: from z640-arch.lan ([2602:61:7344:f100::678]) by smtp.gmail.com with ESMTPSA id y24sm6238825pjp.26.2021.04.22.22.21.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Apr 2021 22:21:20 -0700 (PDT) From: Ilya Lipnitskiy To: Felix Fietkau , John Crispin , Sean Wang , Mark Lee , "David S. Miller" , Jakub Kicinski , Matthias Brugger , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org Cc: Ilya Lipnitskiy Subject: [PATCH net-next v2 03/15] net: ethernet: mtk_eth_soc: fix build_skb cleanup Date: Thu, 22 Apr 2021 22:20:56 -0700 Message-Id: <20210423052108.423853-4-ilya.lipnitskiy@gmail.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210423052108.423853-1-ilya.lipnitskiy@gmail.com> References: <20210423052108.423853-1-ilya.lipnitskiy@gmail.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210423_062403_318146_F7F99906 X-CRM114-Status: GOOD ( 11.77 ) 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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org In case build_skb fails, call skb_free_frag on the correct pointer. Also update the DMA structures with the new mapping before exiting, because the mapping was successful Suggested-by: Felix Fietkau Signed-off-by: Ilya Lipnitskiy --- drivers/net/ethernet/mediatek/mtk_eth_soc.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c index 540003f3fcb8..07daa5de8bec 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c @@ -1304,9 +1304,9 @@ static int mtk_poll_rx(struct napi_struct *napi, int budget, /* receive data */ skb = build_skb(data, ring->frag_size); if (unlikely(!skb)) { - skb_free_frag(new_data); + skb_free_frag(data); netdev->stats.rx_dropped++; - goto release_desc; + goto skip_rx; } skb_reserve(skb, NET_SKB_PAD + NET_IP_ALIGN); @@ -1326,6 +1326,7 @@ static int mtk_poll_rx(struct napi_struct *napi, int budget, skb_record_rx_queue(skb, 0); napi_gro_receive(napi, skb); +skip_rx: ring->data[idx] = new_data; rxd->rxd1 = (unsigned int)dma_addr; -- 2.31.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel