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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E55A1C433FE for ; Sat, 19 Feb 2022 22:54:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242002AbiBSWzI (ORCPT ); Sat, 19 Feb 2022 17:55:08 -0500 Received: from mxb-00190b01.gslb.pphosted.com ([23.128.96.19]:37280 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235536AbiBSWzG (ORCPT ); Sat, 19 Feb 2022 17:55:06 -0500 Received: from mail-ot1-x32f.google.com (mail-ot1-x32f.google.com [IPv6:2607:f8b0:4864:20::32f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0DFDA3BF80; Sat, 19 Feb 2022 14:54:47 -0800 (PST) Received: by mail-ot1-x32f.google.com with SMTP id j3-20020a9d7683000000b005aeed94f4e9so1231601otl.6; Sat, 19 Feb 2022 14:54:47 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=message-id:date:mime-version:user-agent:subject:content-language:to :cc:references:from:in-reply-to:content-transfer-encoding; bh=R7Y7RGg/qzx7WEhwYEz0sSKfyOO0hLiZzhIhihySEI4=; b=XztjrH+hO1rpoto9JNGNRFZtB/0dXFB28btA04mbnixtwjB1z7wal+a72CXvpSX3MO IrreJ3USp80qxF7HT6HKSWVE/tB8jAOiWvtDH8uzHWjgRdVO/o0BKuIyY8sLK9WhY7a5 XR8AsK3EA6ksYwZVabcUYorkGLPbl9VJgcJpOq0pDczxgDw/OvPU5HIZSJebP7tPc04+ XTl9lpQNsYIIX2bsUhxaNZCkJ9ZNIsUhows0XFcxnzgdhU0pJhxCSU2AwLE3BqmOKuoF fLWoDnwDWdKR7gMhrMWpCEbzFUGcOUM6c6oShbnEOUYZX3TbmFM1iovyICuLzI5cCMfm IgUw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:message-id:date:mime-version:user-agent:subject :content-language:to:cc:references:from:in-reply-to :content-transfer-encoding; bh=R7Y7RGg/qzx7WEhwYEz0sSKfyOO0hLiZzhIhihySEI4=; b=mupRnQ8bWwTI+ciz5ilZGi7BFTJoPsTAQNTDM4nH1zfHX6bLqwqq6k9eMoyUSmHyi5 JfHVzHMQ2BMSVSZHImZKi8S6XpaCrgyqLcKagJKB+PYzXxAc75QB512NJEIE8mHyxvpC 8tXdUGKsWu5e4lDdwiuapDlAotCMug1Q62fkuj+yNdCJm3djaRez22NCiw+ZQ7/PZe8D zyM6o5IyaE5PMu75UjzHus24ChBlOeqwTmHRu363QXd8rsIB0ECC1qyl+U+pg8m33LZU ooIUUpq4LsX+QXa5yed+Q2kN4aa9ySiKC9+KaKWQ14lrZH7a9RY/iVyhPasjDCt5Gw4P R1uw== X-Gm-Message-State: AOAM532ydybZZbLWfU/Pkk4RbE0KDUdwXrnedG7Q6RJH5GeXR25cliRc RVfI8yggviip8Gcbc9PRYKo= X-Google-Smtp-Source: ABdhPJy261R/sNdhLo2AKcKlOYMVnTiwa28SFjDj9cxCvVv2nv2uxAynVJz2yrFu/pnQO7rnxqfq6Q== X-Received: by 2002:a9d:2e6:0:b0:5a3:ccab:78f6 with SMTP id 93-20020a9d02e6000000b005a3ccab78f6mr4552515otl.160.1645311285566; Sat, 19 Feb 2022 14:54:45 -0800 (PST) Received: from ?IPV6:2601:284:8200:b700:75f1:ca3:f2d4:114e? ([2601:284:8200:b700:75f1:ca3:f2d4:114e]) by smtp.googlemail.com with ESMTPSA id r204sm4263441oih.1.2022.02.19.14.54.44 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 19 Feb 2022 14:54:45 -0800 (PST) Message-ID: <29ff2768-ca3f-6a09-1df8-d703f85ecfac@gmail.com> Date: Sat, 19 Feb 2022 15:54:41 -0700 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:91.0) Gecko/20100101 Thunderbird/91.6.0 Subject: Re: [PATCH v2 3/3] net: tun: track dropped skb via kfree_skb_reason() Content-Language: en-US To: Dongli Zhang , netdev@vger.kernel.org, bpf@vger.kernel.org Cc: linux-kernel@vger.kernel.org, davem@davemloft.net, kuba@kernel.org, rostedt@goodmis.org, mingo@redhat.com, ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org, imagedong@tencent.com, joao.m.martins@oracle.com, joe.jin@oracle.com, edumazet@google.com References: <20220219191246.4749-1-dongli.zhang@oracle.com> <20220219191246.4749-4-dongli.zhang@oracle.com> From: David Ahern In-Reply-To: <20220219191246.4749-4-dongli.zhang@oracle.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2/19/22 12:12 PM, Dongli Zhang wrote: > diff --git a/drivers/net/tun.c b/drivers/net/tun.c > index aa27268edc5f..ab47a66deb7f 100644 > --- a/drivers/net/tun.c > +++ b/drivers/net/tun.c > @@ -1062,13 +1062,16 @@ static netdev_tx_t tun_net_xmit(struct sk_buff *skb, struct net_device *dev) > struct netdev_queue *queue; > struct tun_file *tfile; > int len = skb->len; > + int drop_reason; enum skb_drop_reason