From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752389AbcBKSsh (ORCPT ); Thu, 11 Feb 2016 13:48:37 -0500 Received: from mail-lb0-f173.google.com ([209.85.217.173]:35069 "EHLO mail-lb0-f173.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751238AbcBKSsc (ORCPT ); Thu, 11 Feb 2016 13:48:32 -0500 Subject: Re: [PATCH V4 22/23] arm64, pci, acpi: Assign legacy IRQs once device is enable. To: Lorenzo Pieralisi References: <1454606941-9523-1-git-send-email-tn@semihalf.com> <1454606941-9523-23-git-send-email-tn@semihalf.com> <20160211115843.GA24136@red-moon> Cc: bhelgaas@google.com, arnd@arndb.de, will.deacon@arm.com, catalin.marinas@arm.com, rjw@rjwysocki.net, hanjun.guo@linaro.org, okaya@codeaurora.org, jiang.liu@linux.intel.com, Stefano.Stabellini@eu.citrix.com, robert.richter@caviumnetworks.com, mw@semihalf.com, Liviu.Dudau@arm.com, ddaney@caviumnetworks.com, wangyijing@huawei.com, Suravee.Suthikulpanit@amd.com, msalter@redhat.com, linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, linaro-acpi@lists.linaro.org, jchandra@broadcom.com, jcm@redhat.com From: Tomasz Nowicki Message-ID: <56BCD6FE.4030107@semihalf.com> Date: Thu, 11 Feb 2016 19:46:22 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Firefox/38.0 Thunderbird/38.3.0 MIME-Version: 1.0 In-Reply-To: <20160211115843.GA24136@red-moon> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 11.02.2016 12:58, Lorenzo Pieralisi wrote: > As for the MSI check, by reading commit history its need I think > it harks back to bba6f6fc, which was supposed to be a quick hack and it > has been in the kernel for 9 years:), is it really needed ? IMO, yes it is needed. We need to chose MSI vs IRQ, and MSI is preferable option. Tomasz