From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from shards.monkeyblade.net ([184.105.139.130]:55368 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751269AbeCTO5Y (ORCPT ); Tue, 20 Mar 2018 10:57:24 -0400 Date: Tue, 20 Mar 2018 10:57:22 -0400 (EDT) Message-Id: <20180320.105722.15146213885137044.davem@davemloft.net> To: lkp@intel.com Cc: ipylypiv@silver-peak.com, kbuild-all@01.org, skhare@vmware.com, pv-drivers@vmware.com, netdev@vger.kernel.org Subject: Re: [PATCH] vmxnet3: fix LRO feature check From: David Miller In-Reply-To: <201803181411.VTfldbIf%fengguang.wu@intel.com> References: <20180317075852.11785-1-ipylypiv@silver-peak.com> <201803181411.VTfldbIf%fengguang.wu@intel.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: netdev-owner@vger.kernel.org List-ID: From: kbuild test robot Date: Sun, 18 Mar 2018 14:37:35 +0800 > All warnings (new ones prefixed by >>): > > drivers/net/vmxnet3/vmxnet3_drv.c: In function 'vmxnet3_rq_rx_complete': >>> drivers/net/vmxnet3/vmxnet3_drv.c:1474:8: warning: suggest parentheses around operand of '!' or change '&' to '&&' or '!' to '~' [-Wparentheses] > !adapter->netdev->features & NETIF_F_LRO) { > ^~~~~~~~~~~~~~~~~~~~~~~~~~ Igor, I will fix this up for you. But it is clear that this patch wasn't tested very well. Because !adapter->netdev->features evaluates wholly before the "& NETIF_F_LRO", the flags aren't being tested properly at all.