[{"id":1760644,"web_url":"http://patchwork.ozlabs.org/comment/1760644/","msgid":"<20170830.220749.1080721940498362679.davem@davemloft.net>","list_archive_url":null,"date":"2017-08-31T05:07:49","subject":"Re: [PATCH net-next] liquidio: fix crash in presence of zeroed-out\n\tbase address regs","submitter":{"id":15,"url":"http://patchwork.ozlabs.org/api/people/15/","name":"David Miller","email":"davem@davemloft.net"},"content":"From: Felix Manlunas \nDate: Wed, 30 Aug 2017 16:19:53 -0700\n\n> From: Rick Farrington \n> \n> Fix crash in linux PF driver when BARs have been cleared/de-programmed;\n> fail early init (prior to mapping BARs) if the BAR0 or\n> BAR1 registers are zero.\n> \n> This situation can arise when the PF is added to a VM (PCI pass-through),\n> then a PF FLR is issued (in the VM). After this occurs, the BAR registers\n> will be zero. If we attempt to load the PF driver in the host\n> (after VM has been shutdown), the host can reset.\n> \n> Signed-off-by: Rick Farrington \n> Signed-off-by: Raghu Vatsavayi \n> Signed-off-by: Felix Manlunas \n\nApplied, thanks.","headers":{"Return-Path":"","X-Original-To":"patchwork-incoming@ozlabs.org","Delivered-To":"patchwork-incoming@ozlabs.org","Authentication-Results":"ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=vger.kernel.org\n\t(client-ip=209.132.180.67; helo=vger.kernel.org;\n\tenvelope-from=netdev-owner@vger.kernel.org;\n\treceiver=)","Received":["from vger.kernel.org (vger.kernel.org [209.132.180.67])\n\tby ozlabs.org (Postfix) with ESMTP id 3xjVkL459Tz9s81\n\tfor ;\n\tThu, 31 Aug 2017 15:07:54 +1000 (AEST)","(majordomo@vger.kernel.org) by vger.kernel.org via listexpand\n\tid S1750911AbdHaFHv (ORCPT );\n\tThu, 31 Aug 2017 01:07:51 -0400","from shards.monkeyblade.net ([184.105.139.130]:41932 \"EHLO\n\tshards.monkeyblade.net\" rhost-flags-OK-OK-OK-OK) by vger.kernel.org\n\twith ESMTP id S1750883AbdHaFHu (ORCPT\n\t); Thu, 31 Aug 2017 01:07:50 -0400","from localhost (74-93-104-98-Washington.hfc.comcastbusiness.net\n\t[74.93.104.98]) (using TLSv1 with cipher AES256-SHA (256/256 bits))\n\t(Client did not present a certificate)\n\t(Authenticated sender: davem-davemloft)\n\tby shards.monkeyblade.net (Postfix) with ESMTPSA id BCB8B13D5A580;\n\tWed, 30 Aug 2017 22:07:49 -0700 (PDT)"],"Date":"Wed, 30 Aug 2017 22:07:49 -0700 (PDT)","Message-Id":"<20170830.220749.1080721940498362679.davem@davemloft.net>","To":"felix.manlunas@cavium.com","Cc":"netdev@vger.kernel.org, raghu.vatsavayi@cavium.com,\n\tderek.chickles@cavium.com, satananda.burla@cavium.com,\n\tricardo.farrington@cavium.com","Subject":"Re: [PATCH net-next] liquidio: fix crash in presence of zeroed-out\n\tbase address regs","From":"David Miller ","In-Reply-To":"<20170830231953.GA14744@felix-thinkpad.cavium.com>","References":"<20170830231953.GA14744@felix-thinkpad.cavium.com>","X-Mailer":"Mew version 6.7 on Emacs 25.2 / Mule 6.0 (HANACHIRUSATO)","Mime-Version":"1.0","Content-Type":"Text/Plain; charset=us-ascii","Content-Transfer-Encoding":"7bit","X-Greylist":"Sender succeeded SMTP AUTH, not delayed by\n\tmilter-greylist-4.5.12 (shards.monkeyblade.net\n\t[149.20.54.216]); Wed, 30 Aug 2017 22:07:50 -0700 (PDT)","Sender":"netdev-owner@vger.kernel.org","Precedence":"bulk","List-ID":"","X-Mailing-List":"netdev@vger.kernel.org"}}]