From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 5FF7F30B51A; Wed, 26 Nov 2025 18:11:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764180663; cv=none; b=MxrsQk2enLccjITP1ObAcMuwiVRDl78yp4LfvQgNSmXQeL83jMIbXmSYhXE3h9kLKhA2OnmebYNnyoshz+Hgi8DZBYjeU95ujCIiZDOwepSnA2i09BKHcINtCAc6ZDhqYiuS5C1wN7TuAKB5Ln3OKCXJ4GldUc/CEBsTEa172Oc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764180663; c=relaxed/simple; bh=icStHp6jzP9XcTYzSQTkyIf3tCmEj269ihIOEprRDKQ=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=hlt6BAJRloZEWCIaYsXGpyksd3iZOFVGR4CL1JEJLjOt5YB88Mbct2dBG2yON7B7amkYuLa58IpUOAwZQ3cerI9TzymofMYolUYcWaMWcag3BFOlwDjr7seQ0w+U+75dJBG+CeqCt+5enKYN3TBWSEUGxRRmVLW2/BodwrexhoU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id F3E25168F; Wed, 26 Nov 2025 10:10:52 -0800 (PST) Received: from arm.com (usa-sjc-mx-foss1.foss.arm.com [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 569CC3F73B; Wed, 26 Nov 2025 10:10:58 -0800 (PST) Date: Wed, 26 Nov 2025 18:10:55 +0000 From: Catalin Marinas To: David Heidelberg via B4 Relay Cc: David Heidelberg , Will Deacon , Casey Connolly , Casey Connolly , Joel Selvaraj , Alexander Martinz , Dzmitry Sankouski , Pablo Correa =?iso-8859-1?Q?G=F3mez?= , Guido =?iso-8859-1?Q?G=FCnther?= , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, phone-devel@vger.kernel.org, Arnd Bergmann Subject: Re: [PATCH QUESTION] arm64: configs: Add Snapdragon 845 config fragment Message-ID: References: <20251126-sdm845-config-question-v1-1-ffa91ed53095@ixit.cz> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20251126-sdm845-config-question-v1-1-ffa91ed53095@ixit.cz> On Wed, Nov 26, 2025 at 05:19:20PM +0100, David Heidelberg via B4 Relay wrote: > From: Casey Connolly > > This fragment provides reasonable default for the mobile devices > based on Snapdragon 845 architecture. While default config could be > used, the reality is it brings many issues to the development workflows, > which are much harder to address than on generic boards or devices with > available UART console. > > This config fragment produces the .config used by distributions. > It is designed to be fairly minimal and specific to the > supported SDM845 devices whilst offering all the features you would > expect. > > It disables other arm64 architectures to speed up build times and > decrease the size of the kernel image. > > To generate a .config use "make defconfig sdm845.config" > > [David] > - Dropped distribution specific options. > - Added entry into the MAINTAINERS file. [...] > MAINTAINERS | 5 + > arch/arm64/configs/sdm845.config | 1048 ++++++++++++++++++++++++++++++++++++++ > 2 files changed, 1053 insertions(+) I really don't think the kernel should carry configs other than the generic ones used by developers. We had this on arm32 but mostly because we didn't have a single kernel image for a long time (and when we got it, it was mostly for v7 cores). I don't want to get back to hosting a multitude of configs in mainline. -- Catalin