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=-10.5 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,NICE_REPLY_A, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=unavailable 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 05FDBC433DB for ; Mon, 8 Feb 2021 11:32:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AA04B64E30 for ; Mon, 8 Feb 2021 11:32:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233376AbhBHLcp (ORCPT ); Mon, 8 Feb 2021 06:32:45 -0500 Received: from frasgout.his.huawei.com ([185.176.79.56]:2523 "EHLO frasgout.his.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233058AbhBHLQf (ORCPT ); Mon, 8 Feb 2021 06:16:35 -0500 Received: from fraeml734-chm.china.huawei.com (unknown [172.18.147.207]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4DZ3HB75hpz67lhd; Mon, 8 Feb 2021 19:11:02 +0800 (CST) Received: from lhreml724-chm.china.huawei.com (10.201.108.75) by fraeml734-chm.china.huawei.com (10.206.15.215) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2106.2; Mon, 8 Feb 2021 12:15:53 +0100 Received: from [10.47.8.138] (10.47.8.138) by lhreml724-chm.china.huawei.com (10.201.108.75) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2106.2; Mon, 8 Feb 2021 11:15:52 +0000 Subject: Re: [Linuxarm] [PATCH v1 0/2] irqchip/gic-v3-its: don't set bitmap for LPI which user didn't allocate To: Luo Jiaxing , CC: , , References: <1612781926-56206-1-git-send-email-luojiaxing@huawei.com> From: John Garry Message-ID: Date: Mon, 8 Feb 2021 11:14:19 +0000 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.1.2 MIME-Version: 1.0 In-Reply-To: <1612781926-56206-1-git-send-email-luojiaxing@huawei.com> Content-Type: text/plain; charset="utf-8"; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Originating-IP: [10.47.8.138] X-ClientProxiedBy: lhreml745-chm.china.huawei.com (10.201.108.195) To lhreml724-chm.china.huawei.com (10.201.108.75) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 08/02/2021 10:58, Luo Jiaxing wrote: > When the number of online CPUs is less than 16, we found that it will fail > to allocate 32 MSI interrupts (including 16 affinity interrupts) after the > hisi_sas module is unloaded and then reloaded. > > After analysis, it is found that a bug exists when the ITS releases > interrupt resources, and this patch set contains a bugfix patch and a patch > for appending debugging information. Please note that this issue has already been reported: https://lore.kernel.org/lkml/fd88ce05-8aee-5b1f-5ab6-be88fa53d3aa@huawei.com/ > > Luo Jiaxing (2): > irqchip/gic-v3-its: don't set bitmap for LPI which user didn't > allocate > genirq/msi: add an error print when __irq_domain_alloc_irqs() failed > > drivers/irqchip/irq-gic-v3-its.c | 4 ++++ > kernel/irq/msi.c | 1 + > 2 files changed, 5 insertions(+) >