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=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 3DA56C31E50 for ; Sun, 16 Jun 2019 20:54:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 116092080C for ; Sun, 16 Jun 2019 20:54:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727160AbfFPUyq (ORCPT ); Sun, 16 Jun 2019 16:54:46 -0400 Received: from shards.monkeyblade.net ([23.128.96.9]:52048 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725920AbfFPUyq (ORCPT ); Sun, 16 Jun 2019 16:54:46 -0400 Received: from localhost (unknown [IPv6:2601:601:9f80:35cd::3d5]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) (Authenticated sender: davem-davemloft) by shards.monkeyblade.net (Postfix) with ESMTPSA id 04C47151C2872; Sun, 16 Jun 2019 13:54:45 -0700 (PDT) Date: Sun, 16 Jun 2019 13:54:45 -0700 (PDT) Message-Id: <20190616.135445.822152500838073831.davem@davemloft.net> To: decui@microsoft.com Cc: sunilmut@microsoft.com, kys@microsoft.com, haiyangz@microsoft.com, sthemmin@microsoft.com, sashal@kernel.org, mikelley@microsoft.com, netdev@vger.kernel.org, linux-hyperv@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH net] hvsock: fix epollout hang from race condition From: David Miller In-Reply-To: References: <20190614.191456.407433636343988177.davem@davemloft.net> X-Mailer: Mew version 6.8 on Emacs 26.1 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-4.5.12 (shards.monkeyblade.net [149.20.54.216]); Sun, 16 Jun 2019 13:54:46 -0700 (PDT) Sender: linux-hyperv-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-hyperv@vger.kernel.org From: Dexuan Cui Date: Sat, 15 Jun 2019 03:22:32 +0000 > These warnings are not introduced by this patch from Sunil. > > I'm not sure why I didn't notice these warnings before. > Probably my gcc version is not new eought? > > Actually these warnings are bogus, as I checked the related functions, > which may confuse the compiler's static analysis. > > I'm going to make a patch to initialize the pointers to NULL to suppress > the warnings. My patch will be based on the latest's net.git + this patch > from Sunil. Sunil should then resubmit his patch against something that has the warning suppression patch applied.