From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S936409AbcKWMPv (ORCPT ); Wed, 23 Nov 2016 07:15:51 -0500 Received: from foss.arm.com ([217.140.101.70]:50422 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S936362AbcKWMPs (ORCPT ); Wed, 23 Nov 2016 07:15:48 -0500 Subject: Re: [PATCH 1/3] of: base: add support to get machine compatible string To: Sekhar Nori References: <1479811311-3080-1-git-send-email-bgolaszewski@baylibre.com> <1479811311-3080-2-git-send-email-bgolaszewski@baylibre.com> <5ce9fb9f-459a-562b-2e9f-85d35f9ec035@arm.com> <67a3c2c7-0cb9-9764-2710-6ee66fc4dde4@ti.com> <2a644b8c-d91e-5ab1-200b-00f749a36307@arm.com> <11467504-c700-cbfa-a945-be9ec8776144@ti.com> Cc: Sudeep Holla , Bartosz Golaszewski , Kevin Hilman , Michael Turquette , Rob Herring , Frank Rowand , Mark Rutland , Peter Ujfalusi , Russell King , LKML , arm-soc , linux-drm , linux-devicetree , Jyri Sarha , Tomi Valkeinen , David Airlie , Laurent Pinchart , Robin Murphy From: Sudeep Holla Organization: ARM Message-ID: Date: Wed, 23 Nov 2016 12:15:37 +0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.4.0 MIME-Version: 1.0 In-Reply-To: <11467504-c700-cbfa-a945-be9ec8776144@ti.com> 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 23/11/16 12:13, Sekhar Nori wrote: > On Wednesday 23 November 2016 05:37 PM, Sudeep Holla wrote: >>> So, the if(!of_node_get()) is just an expensive NULL pointer check. I >>> think >>> it is better to be explicit about it by not using of_node_get/put() at >>> all. >>> How about: >>> >> >> Are we planning to use this in any time sensitive paths? Anyways I am >> fine removing them. > > Not worried about the time taken as much as it serving as a bad example > and getting carried over to other places where the impact might actually > be real. > Ah OK, sure. -- Regards, Sudeep