From patchwork Sat Nov 21 03:06:16 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yunsheng Lin X-Patchwork-Id: 11923139 X-Patchwork-Delegate: kuba@kernel.org 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 4765AC2D0E4 for ; Sat, 21 Nov 2020 03:10:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0976A223FD for ; Sat, 21 Nov 2020 03:10:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726417AbgKUDKB (ORCPT ); Fri, 20 Nov 2020 22:10:01 -0500 Received: from szxga07-in.huawei.com ([45.249.212.35]:8381 "EHLO szxga07-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725829AbgKUDKB (ORCPT ); Fri, 20 Nov 2020 22:10:01 -0500 Received: from DGGEMS407-HUB.china.huawei.com (unknown [172.30.72.60]) by szxga07-in.huawei.com (SkyGuard) with ESMTP id 4CdJLF2xsWz6y1C; Sat, 21 Nov 2020 11:09:41 +0800 (CST) Received: from localhost.localdomain (10.69.192.58) by DGGEMS407-HUB.china.huawei.com (10.3.19.207) with Microsoft SMTP Server id 14.3.487.0; Sat, 21 Nov 2020 11:09:49 +0800 From: Yunsheng Lin To: , , , , , , , , , , , , , , , , CC: , , Subject: [PATCH net-next v2 2/2] net: Use lockdep_assert_in_softirq() in napi_consume_skb() Date: Sat, 21 Nov 2020 11:06:16 +0800 Message-ID: <1605927976-232804-3-git-send-email-linyunsheng@huawei.com> X-Mailer: git-send-email 2.8.1 In-Reply-To: <1605927976-232804-1-git-send-email-linyunsheng@huawei.com> References: <1605927976-232804-1-git-send-email-linyunsheng@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.69.192.58] X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org Use napi_consume_skb() to assert the case when it is not called in a atomic softirq context. Signed-off-by: Yunsheng Lin --- net/core/skbuff.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/core/skbuff.c b/net/core/skbuff.c index ffe3dcc..effa19d 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -902,6 +902,8 @@ void napi_consume_skb(struct sk_buff *skb, int budget) return; } + lockdep_assert_in_softirq(); + if (!skb_unref(skb)) return;