From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754061AbeDYXgL convert rfc822-to-8bit (ORCPT ); Wed, 25 Apr 2018 19:36:11 -0400 Received: from hqemgate16.nvidia.com ([216.228.121.65]:7961 "EHLO hqemgate16.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752958AbeDYXgI (ORCPT ); Wed, 25 Apr 2018 19:36:08 -0400 X-PGP-Universal: processed; by hqpgpgate102.nvidia.com on Wed, 25 Apr 2018 16:36:06 -0700 From: Rohit Khanna To: "catalin.marinas@arm.com" , "will.deacon@arm.com" CC: "linux-kernel@vger.kernel.org" , "Thierry Reding" , Alexander Van Brunt , "Bo Yan" , Jason Sequeira Subject: Re: [PATCH] arm64: skip cpu nodes marked as disabled in DT Thread-Topic: [PATCH] arm64: skip cpu nodes marked as disabled in DT Thread-Index: AQHT3OpPpC2oxqlzZUeaW3pC5uzQlqQSIj0r Date: Wed, 25 Apr 2018 23:36:06 +0000 Message-ID: <1524699380207.85374@nvidia.com> References: <1524697712-20208-1-git-send-email-rokhanna@nvidia.com> In-Reply-To: <1524697712-20208-1-git-send-email-rokhanna@nvidia.com> Accept-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [172.17.136.184] MIME-Version: 1.0 Content-Language: en-US Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Adding few other folks. Thanks Rohit ________________________________________ From: Rohit Khanna Sent: Wednesday, April 25, 2018 4:08 PM To: catalin.marinas@arm.com; will.deacon@arm.com Cc: linux-kernel@vger.kernel.org; Rohit Khanna Subject: [PATCH] arm64: skip cpu nodes marked as disabled in DT Skip the CPU nodes that are marked as disabled in DT. Bug 1828570 Signed-off-by: Rohit Khanna Reviewed-on: http://git-master/r/1245333 Reviewed-by: Alexander Van Brunt --- arch/arm64/kernel/smp.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c index f3e2e3aec0b0..2b4371b0948d 100644 --- a/arch/arm64/kernel/smp.c +++ b/arch/arm64/kernel/smp.c @@ -578,6 +578,10 @@ static void __init of_parse_and_init_cpus(void) for_each_node_by_type(dn, "cpu") { u64 hwid = of_get_cpu_mpidr(dn); + /* Check to see if the cpu is disabled */ + if (!of_device_is_available(dn)) + goto next; + if (hwid == INVALID_HWID) goto next; -- 2.1.4