From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758044AbeBPOyW (ORCPT ); Fri, 16 Feb 2018 09:54:22 -0500 Received: from mail-wm0-f65.google.com ([74.125.82.65]:53526 "EHLO mail-wm0-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755589AbeBPOyU (ORCPT ); Fri, 16 Feb 2018 09:54:20 -0500 X-Google-Smtp-Source: AH8x226R1tcBdaHfq4umfpWIIcVLrvzuxsAo7WuETd2dPPGkydt90CtZHf8bZdFUGtQ+gmXfdMT3zA== Subject: Re: CONFIG_IRQ_TIMINGS? To: Thomas Gleixner , Randy Dunlap Cc: LKML , X86 ML References: <8ae9d59b-7499-87cd-702f-c722b9a77939@infradead.org> From: Daniel Lezcano Message-ID: Date: Fri, 16 Feb 2018 15:54:17 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.6.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 16/02/2018 15:16, Thomas Gleixner wrote: > On Thu, 15 Feb 2018, Randy Dunlap wrote: > >> Hi, >> >> Is this a dead kconfig symbol? I don't see any Kconfig file that >> sets/enables it. >> >> ./kernel/irq/Makefile:4:obj-$(CONFIG_IRQ_TIMINGS) += timings.o >> ./kernel/irq/internals.h:#ifdef CONFIG_IRQ_TIMINGS >> ./kernel/irq/internals.h:#endif /* CONFIG_IRQ_TIMINGS */ >> ./include/linux/interrupt.h:#ifdef CONFIG_IRQ_TIMINGS This feature is not supposed to be selected by the user but by a subsystem depending on it. This subsystems is not yet ready, this is why the option is not selectable for now. The algorithm using these timings appears to be too heavy for the kernel, it needs some rework. -- Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog