From patchwork Tue Jun 7 17:17:24 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eric Dumazet X-Patchwork-Id: 12872180 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 DC7F5C43334 for ; Tue, 7 Jun 2022 17:17:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345488AbiFGRRj (ORCPT ); Tue, 7 Jun 2022 13:17:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33350 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344627AbiFGRRi (ORCPT ); Tue, 7 Jun 2022 13:17:38 -0400 Received: from mail-pf1-x42c.google.com (mail-pf1-x42c.google.com [IPv6:2607:f8b0:4864:20::42c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 18B714D26A for ; Tue, 7 Jun 2022 10:17:37 -0700 (PDT) Received: by mail-pf1-x42c.google.com with SMTP id 15so16093911pfy.3 for ; Tue, 07 Jun 2022 10:17:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=10cxczHKBZ+4DvEoUdvi+p/5cLvVVYIjyKUpFH0W394=; b=Exp1KP7zwqiJgEcBMbtEDz+b0GlbVAiC6+wF3NXn5oFZzkXfaXwUEwdf4zPN0AH6wS GI0LmLAPS7R09kqSraYu/wjTXcRGgstQYj2eytlR7J06lE/MqEv5heELH5M1/pc2lIF8 gQEMxMaRHffCu8+UABGMEmYAxrKX6VZs/9WvYo22+tZSOJJ5gVafWDdIUPwVRsd5sg9R QW651NiQKmlkMf10ETYuhetYhG/BexyecFmuz0qd9P2htH7zScdktTyKeak3rtwjHp9t shPSO4Sv0F2/2dORSJJ2zqCPeX1FJChoqKh6Ce77QkMhqy9lkpGr6On/o640ia/Ljoda idQQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=10cxczHKBZ+4DvEoUdvi+p/5cLvVVYIjyKUpFH0W394=; b=XgAiifO2YEaNc41FBK+4L4uWYuPfjL5qRkwFhfeRj5KRx9E93lcHwNc3n4lDEH8ip9 T6SaP7ENBvN1H3SbJdAHQMkVJ0Y1zREPmaGAuhKZNPn6Mhe3EaGLNX6+Lo73ICG4eZ8n DqZwYTitbX728tgI9VXqxLakZ/bc+OjYLmArU/g69AYMEm+cBnaDHyEn/XEAOUMEKJFj jLoh6R67/TuXdkk6z/JY7o/X8kehJr4euSAEM9QnvyyV6KZUqXJ1UvC74KsjmlN1AqLV t27qlOqfmxthtgTL5B3A2HME/zviF/z2kK9b1ZHbFgO4pCZRNc177Hab1oXWZkvSHDSS UO4w== X-Gm-Message-State: AOAM531Mddv9cs1tHQg3fR4KSEyqph1JdloOHlOfAxdmHfgOY99G//El 5D4QVwOAPnBU8z3mzdxJ3t4= X-Google-Smtp-Source: ABdhPJxrHK5xL+cD1RV0WO2CQis2FDSnSH5+Ouii0gV1aMMG4Gic4ARfnxoX04bpWCgytscif1izUQ== X-Received: by 2002:a63:2154:0:b0:3fe:2814:bd74 with SMTP id s20-20020a632154000000b003fe2814bd74mr187627pgm.148.1654622256639; Tue, 07 Jun 2022 10:17:36 -0700 (PDT) Received: from edumazet1.svl.corp.google.com ([2620:15c:2c4:201:191a:13a7:b80a:f36e]) by smtp.gmail.com with ESMTPSA id d4-20020a621d04000000b0051b930b7bbesm13001616pfd.135.2022.06.07.10.17.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 07 Jun 2022 10:17:36 -0700 (PDT) From: Eric Dumazet To: "David S . Miller" , Jakub Kicinski , Paolo Abeni Cc: netdev , Eric Dumazet , Eric Dumazet Subject: [PATCH net-next 0/8] net: few debug refinements Date: Tue, 7 Jun 2022 10:17:24 -0700 Message-Id: <20220607171732.21191-1-eric.dumazet@gmail.com> X-Mailer: git-send-email 2.36.1.255.ge46751e96f-goog MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org From: Eric Dumazet Adopt DEBUG_NET_WARN_ON_ONCE() in some places where it makes sense. Add checks in napi_consume_skb() and __napi_alloc_skb() Make sure napi_get_frags() does not use page fragments for skb->head. Eric Dumazet (8): net: use DEBUG_NET_WARN_ON_ONCE() in __release_sock() net: use DEBUG_NET_WARN_ON_ONCE() in dev_loopback_xmit() net: use DEBUG_NET_WARN_ON_ONCE() in inet_sock_destruct() net: use DEBUG_NET_WARN_ON_ONCE() in sk_stream_kill_queues() af_unix: use DEBUG_NET_WARN_ON_ONCE() net: use DEBUG_NET_WARN_ON_ONCE() in skb_release_head_state() net: add debug checks in napi_consume_skb and __napi_alloc_skb() net: add napi_get_frags_check() helper net/core/dev.c | 20 +++++++++++++++++++- net/core/skbuff.c | 5 +++-- net/core/sock.c | 2 +- net/core/stream.c | 6 +++--- net/ipv4/af_inet.c | 8 ++++---- net/unix/af_unix.c | 8 ++++---- 6 files changed, 34 insertions(+), 15 deletions(-)