Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752039AbdGGNbR (ORCPT ); Fri, 7 Jul 2017 09:31:17 -0400 Received: from smtp.codeaurora.org ([198.145.29.96]:59024 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750778AbdGGNbP (ORCPT ); Fri, 7 Jul 2017 09:31:15 -0400 DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org B2CE1605A4 Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=okaya@codeaurora.org Subject: Re: [PATCH] PCI: Do not enable extended tags on pre-dated (v1.x) systems To: Jike Song Cc: linux-pci@vger.kernel.org, timur@codeaurora.org, wim.ten.have@oracle.com, linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Bjorn Helgaas , Linux Kernel Mailing List References: <1499260748-21860-1-git-send-email-okaya@codeaurora.org> From: Sinan Kaya Message-ID: Date: Fri, 7 Jul 2017 09:31:09 -0400 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.2.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 519 Lines: 14 On 7/7/2017 1:04 AM, Jike Song wrote: > Maybe checking the version of this endpoint at first? Do you expect a > v1 endpoint > to be working under v2+ ports? I see your point. I guess we need to validate both incoming and outgoing. I was only checking incoming direction. Let me look at this one more time. -- Sinan Kaya Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc. Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.