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=-3.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 6E9F7C43381 for ; Thu, 18 Mar 2021 18:24:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4A99F64F2A for ; Thu, 18 Mar 2021 18:24:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232495AbhCRSYV (ORCPT ); Thu, 18 Mar 2021 14:24:21 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49544 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232469AbhCRSXx (ORCPT ); Thu, 18 Mar 2021 14:23:53 -0400 Received: from mail.monkeyblade.net (shards.monkeyblade.net [IPv6:2620:137:e000::1:9]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 199CEC06174A for ; Thu, 18 Mar 2021 11:23:53 -0700 (PDT) Received: from localhost (unknown [IPv6:2601:601:9f00:477::3d5]) by mail.monkeyblade.net (Postfix) with ESMTPSA id AB7704D31C532; Thu, 18 Mar 2021 11:23:49 -0700 (PDT) Date: Thu, 18 Mar 2021 11:23:45 -0700 (PDT) Message-Id: <20210318.112345.1088585054654353399.davem@davemloft.net> To: edumazet@google.com Cc: ljp@linux.ibm.com, netdev@vger.kernel.org, kuba@kernel.org, tlfalcon@linux.ibm.com, ast@kernel.org, daniel@iogearbox.net, andriin@fb.com, weiwan@google.com, cong.wang@bytedance.com, ap420073@gmail.com, shemminger@linux-foundation.org Subject: Re: [PATCH net] net: core: avoid napi_disable to cause deadlock From: David Miller In-Reply-To: References: <20210318080450.38893-1-ljp@linux.ibm.com> X-Mailer: Mew version 6.8 on Emacs 27.1 Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.6.2 (mail.monkeyblade.net [0.0.0.0]); Thu, 18 Mar 2021 11:23:50 -0700 (PDT) Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Eric Dumazet Date: Thu, 18 Mar 2021 10:22:23 +0100 > On Thu, Mar 18, 2021 at 9:04 AM Lijun Pan wrote: >> >> There are chances that napi_disable is called twice by NIC driver. > > > ??? > > Please fix the buggy driver, or explain why it can not be fixed. Agreed,.