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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id CD653C433F5 for ; Wed, 23 Feb 2022 21:54:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:Message-ID: Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:References: List-Owner; bh=IUuLcHWekcooocQ0mUtxWpM9mWqsHoeQ48skhpnmRqo=; b=bBQJAtN3XYbB3k L0Qrpw1X57ij5krc8iZnmWOsgO19MWhhE5KIjX4NIn6HegPBjg5hFWufMViu383wlwnY9Rj0B2Gxu Lposu9rety2nNjuTPvMmsut6R87mzS2yTqOmCWEGN66qpccbFTdZSjUOZefA0SlBdtEzh+8L40lC/ DXJeyX7aECe1P0y3ojP6Ztqcpg/7rT0Q+B0nQixSvGoiSTCNWoATdlNpTsYZJq0tfMMNFYhEzuutW ua6fJ6kKsEhZ3fFF9lzp1LU0YfJIchNoYTd/bjULoQ91bCsdFVHjXfa9R10hme7800SXypEKOdj5a N2qs5ifPQse0+7uchnjw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nMza0-00G8sC-VY; Wed, 23 Feb 2022 21:53:49 +0000 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nMzZx-00G8ri-Iz for linux-arm-kernel@lists.infradead.org; Wed, 23 Feb 2022 21:53:46 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id B251261880; Wed, 23 Feb 2022 21:53:44 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id DA655C340E7; Wed, 23 Feb 2022 21:53:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1645653224; bh=soOvQYRaOyZB66UMOdZmvj155c4NjxblRTlsoz7NPWM=; h=Date:From:To:Cc:Subject:In-Reply-To:From; b=Rnac7ap99w001yaIWWSDvCcMuzb4R6SAfj0LsDJC9di7qM+crR9k/cY2llxXgAVae QFGtb0ad4PBYVxi75RirP6dccAvb/YLEB2wy3JjHbeXOkaqKgZeRRtd6yVF0yDH2bX pz0IUI0hmSspHhbjKUCgtxSE6nrqvVWHeJgKFJeUrIJjpsFEqe/+RGrkNOuSHPKypb 0ZwdJk12cdt9PAP1ZL3LN2+KDUA7YOVUwFJcLv7Qfag5C0QESOZ5SuSUXjDU+v8/sC JSx3uLNr/O0Ox2z2I6BCIY2za2vtgmF4cDPdJ8NlSpe2wOyaPc+YlwVQ6ua50G6jz0 auUVVFaAiFa0w== Date: Wed, 23 Feb 2022 15:53:42 -0600 From: Bjorn Helgaas To: Krzysztof Kozlowski Cc: Greg Kroah-Hartman , "Rafael J. Wysocki" , Stuart Yoder , Laurentiu Tudor , Abel Vesa , Shawn Guo , Sascha Hauer , Fabio Estevam , "K. Y. Srinivasan" , Haiyang Zhang , Stephen Hemminger , Wei Liu , Dexuan Cui , Bjorn Helgaas , Bjorn Andersson , Mathieu Poirier , Vineeth Vijayan , Peter Oberparleiter , Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Christian Borntraeger , Sven Schnelle , Andy Gross , Srinivas Kandagatla , Mark Brown , "Michael S. Tsirkin" , Jason Wang , linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, NXP Linux Team , linux-arm-kernel@lists.infradead.org, linux-hyperv@vger.kernel.org, linux-pci@vger.kernel.org, linux-remoteproc@vger.kernel.org, linux-s390@vger.kernel.org, linux-arm-msm@vger.kernel.org, alsa-devel@alsa-project.org, linux-spi@vger.kernel.org, virtualization@lists.linux-foundation.org, Linus Torvalds , Rasmus Villemoes Subject: Re: [PATCH v2 01/11] driver: platform: add and use helper for safer setting of driver_override Message-ID: <20220223215342.GA155282@bhelgaas> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20220223191310.347669-2-krzysztof.kozlowski@canonical.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220223_135345_691154_1112E356 X-CRM114-Status: GOOD ( 14.80 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, Feb 23, 2022 at 08:13:00PM +0100, Krzysztof Kozlowski wrote: > Several core drivers and buses expect that driver_override is a > dynamically allocated memory thus later they can kfree() it. > ... > + * set_driver_override() - Helper to set or clear driver override. Doesn't match actual function name. > + * @dev: Device to change > + * @override: Address of string to change (e.g. &device->driver_override); > + * The contents will be freed and hold newly allocated override. > + * @s: NULL terminated string, new driver name to force a match, pass empty > + * string to clear it > + * > + * Helper to setr or clear driver override in a device, intended for the cases > + * when the driver_override field is allocated by driver/bus code. s/setr/set/ > + * Returns: 0 on success or a negative error code on failure. > + */ > +int driver_set_override(struct device *dev, char **override, const char *s) > +{ _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel