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=-6.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no 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 E0A02C433E0 for ; Fri, 5 Feb 2021 09:56:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A712E64E2C for ; Fri, 5 Feb 2021 09:56:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230038AbhBEJ4Q (ORCPT ); Fri, 5 Feb 2021 04:56:16 -0500 Received: from mail.kernel.org ([198.145.29.99]:49408 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230185AbhBEJyP (ORCPT ); Fri, 5 Feb 2021 04:54:15 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 2096464FBB; Fri, 5 Feb 2021 09:53:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1612518806; bh=Y8bJVG8zayY3p+rFdJDgw39QGpqNAHVQzjuo01HQbu4=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=fp7A0FmKaCne3yXWodqq51CWTZUfBP6EJdOS8eGzbQvbV68N4XllqooRxMW8o0q3P eu+WmgDxHB/JgpcMuViTatTRe23bh1kvgJv88uLAWudjR40g1jC0Yls4aVeiyEz7eH lYIuiI0yuMLe3CGFDrUraYi4flA3u+hengBIy360= Date: Fri, 5 Feb 2021 10:53:23 +0100 From: Greg KH To: Yicong Yang Cc: jdelvare@suse.com, linux@roeck-us.net, giometti@enneenne.com, abbotti@mev.co.uk, hsweeten@visionengravers.com, kw@linux.com, helgaas@kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, linux-hwmon@vger.kernel.org, devel@driverdev.osuosl.org, linux-kbuild@vger.kernel.org, masahiroy@kernel.org, michal.lkml@markovi.net, linuxarm@openeuler.org, prime.zeng@huawei.com Subject: Re: [PATCH 1/4] driver core: Use subdir-ccflags-* to inherit debug flag Message-ID: References: <1612518255-23052-1-git-send-email-yangyicong@hisilicon.com> <1612518255-23052-2-git-send-email-yangyicong@hisilicon.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1612518255-23052-2-git-send-email-yangyicong@hisilicon.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Feb 05, 2021 at 05:44:12PM +0800, Yicong Yang wrote: > From: Junhao He > > Use subdir-ccflags-* instead of ccflags-* to inherit the debug > settings from Kconfig when traversing subdirectories. That says what you do, but not _why_ you are doing it. What does this offer in benefit of the existing way? What is it fixing? Why do this "churn"? thanks, greg k-h