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=-5.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, 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 4D4F7ECE58E for ; Tue, 15 Oct 2019 08:16:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 22C3121A49 for ; Tue, 15 Oct 2019 08:16:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727962AbfJOIQe (ORCPT ); Tue, 15 Oct 2019 04:16:34 -0400 Received: from szxga04-in.huawei.com ([45.249.212.190]:3715 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728638AbfJOIQe (ORCPT ); Tue, 15 Oct 2019 04:16:34 -0400 Received: from DGGEMS413-HUB.china.huawei.com (unknown [172.30.72.58]) by Forcepoint Email with ESMTP id 684F722A77D763E6CFE1; Tue, 15 Oct 2019 16:16:30 +0800 (CST) Received: from [127.0.0.1] (10.202.227.179) by DGGEMS413-HUB.china.huawei.com (10.3.19.213) with Microsoft SMTP Server id 14.3.439.0; Tue, 15 Oct 2019 16:16:22 +0800 Subject: Re: [PATCH for-stable-5.3 1/2] ACPI/PPTT: Add support for ACPI 6.3 thread flag To: Sasha Levin References: <1571054162-71090-1-git-send-email-john.garry@huawei.com> <1571054162-71090-2-git-send-email-john.garry@huawei.com> <20191014232958.GC31224@sasha-vm> CC: , , , , , , , , , , , , , , From: John Garry Message-ID: <635a839b-bc1e-37ab-bd47-a554acc9b282@huawei.com> Date: Tue, 15 Oct 2019 09:16:13 +0100 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.3.0 MIME-Version: 1.0 In-Reply-To: <20191014232958.GC31224@sasha-vm> Content-Type: text/plain; charset="windows-1252"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [10.202.227.179] X-CFilter-Loop: Reflected Sender: linux-acpi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org On 15/10/2019 00:29, Sasha Levin wrote: > On Mon, Oct 14, 2019 at 07:56:01PM +0800, John Garry wrote: >> From: Jeremy Linton >> >> Commit bbd1b70639f785a970d998f35155c713f975e3ac upstream. >> >> ACPI 6.3 adds a flag to the CPU node to indicate whether >> the given PE is a thread. Add a function to return that >> information for a given linux logical CPU. >> >> Signed-off-by: Jeremy Linton >> Reviewed-by: Sudeep Holla >> Reviewed-by: Robert Richter >> Acked-by: Rafael J. Wysocki >> Signed-off-by: Will Deacon >> Signed-off-by: John Garry > > How far back should these patches be backported? > Hi Sasha, This patchset is for 5.3, and I sent a separate patchset for 4.19, since the backport is a little different and required some hand modification - https://lore.kernel.org/linux-arm-kernel/1571046986-231263-1-git-send-email-john.garry@huawei.com/. 4.19 is as far back as we want. Please note that the patches in this 5.3 series are relevant for 5.2 also, but since 5.2 is EOL, I didn't mention it. We did test 5.2, so you can add there also. Please let me know if any more questions. All the best, John