Received: by 2002:a05:6a10:c604:0:0:0:0 with SMTP id y4csp3721113pxt; Tue, 10 Aug 2021 09:47:45 -0700 (PDT) X-Google-Smtp-Source: ABdhPJzoNwvNJ8CHrreA3Y2e1U2mP1ANohH2RTyQZIh1q33OdoTFLkad8fQxHBniSbPkSf0EXDir X-Received: by 2002:a92:7f0f:: with SMTP id a15mr17206ild.245.1628614065693; Tue, 10 Aug 2021 09:47:45 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1628614065; cv=none; d=google.com; s=arc-20160816; b=mlUleTe9HmGNYIrq20SNwjzosI4aVvOmkCRjZh74NsdySIr3c9IDmQ7MXdJwvD8yHn 6WWbbs2FcFMDz9ukRwydbDy1FfjSadY8TdfcW0KTMqt5VqCKgXrhEkuqqs3cduChxDyL mjIbux94vnJksLCgJl5fFuIhANj3v2AJzV9w2zjxcQIaJWp3lCvMcwDvjAvydpfEqqE3 +pe3ar7dptiaXFSN0WfK7pWomSaYZxpZMPTcYcq4ExfNPTK+1PDhWnSawWtWLRU2ehnL /NT+4ju0fonAuv3s/F8xVLWj+s1rDPhqBqB6k1qAX98a2ytrVocosFCGGdFBQKYNwoJf rfVA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:in-reply-to:content-disposition:mime-version :references:message-id:subject:cc:to:from:date:dkim-signature; bh=HvAkw/gWJZ3QY8CKcv5rMg/NeJiwJ1weAp+TQ0QSQA8=; b=AmiURZ8pAmOR6+whF+P1D/pJbB3WJY6bDkXYhl2Y/dFJw/P3pmkUFcmDg0Rxs+3VuL ALzMFtGX5iuvNN9KW8TW1TW0PnF78ReVGnQtp2K3boJKz9IsNZojT1ES0xJntnCp80eb rtzBRXKNuTrPDPkSPkkNbyQr1ZXcmcdPBmcUXDZm+9SWOYUwhtvk+H4dTZtIbKNEHEG9 Fbm99XTA+LoBCgAtAYWSbT+RP/UuRpm1m1uQm032KhAdKaRpRoF6TriidOqU1FpTKmH2 Vul2pAzeMD0zEi/XkgcR6PE0Zd3NOoGD9YsTBEl/oI+jLGodeS1bXWnIf9HMhlin5x1t irWA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@infradead.org header.s=casper.20170209 header.b=uzTnnhsP; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id b26si21759486jar.107.2021.08.10.09.47.32; Tue, 10 Aug 2021 09:47:45 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@infradead.org header.s=casper.20170209 header.b=uzTnnhsP; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229798AbhHJQrP (ORCPT + 99 others); Tue, 10 Aug 2021 12:47:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40196 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229516AbhHJQrP (ORCPT ); Tue, 10 Aug 2021 12:47:15 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2FA77C0613C1; Tue, 10 Aug 2021 09:46:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=HvAkw/gWJZ3QY8CKcv5rMg/NeJiwJ1weAp+TQ0QSQA8=; b=uzTnnhsPt/hTLjj9DlvEAnAfmH tUB0NOMY6YhX+f6MCX2Sbs0qzeD9ZWO//eUd793IpW9850y9HyqO+72l4+eyQ0ZzJcym+BEgzL1HO eP70W+ozn59iemTM+eLMyrZledeerni4d/aMcv9wTReJuuPXXJRUZ5YE02NTDu8K0FvxsJv8pt6rX s4WYf0kPzTW6KbXQlR+u/Pfs8V82WA+DeX11NqF5Ewgal25o1Tkh2to+7rArfh9t6LG3mN/7HIB1K lVO9VZgcpmykWRMNjR7c5lSiZpgquXuAIp8ti0dhB185CFHrl4KqM+mfSdFD14vk23YWMaRLybzwx 0w8Q0NCQ==; Received: from hch by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1mDUsC-00CMTk-CF; Tue, 10 Aug 2021 16:45:27 +0000 Date: Tue, 10 Aug 2021 17:45:04 +0100 From: Christoph Hellwig To: Lorenzo Pieralisi Cc: linux-kernel@vger.kernel.org, Ard Biesheuvel , "Rafael J. Wysocki" , linux-acpi@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Veronika kabatova , Robin Murphy , Will Deacon , Hanjun Guo , Sudeep Holla , Catalin Marinas Subject: Re: [PATCH v2 1/3] ACPI: osl: Add __force attribute in acpi_os_map_iomem() cast Message-ID: References: <20210726100026.12538-1-lorenzo.pieralisi@arm.com> <20210802152359.12623-2-lorenzo.pieralisi@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210802152359.12623-2-lorenzo.pieralisi@arm.com> X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Aug 02, 2021 at 04:23:57PM +0100, Lorenzo Pieralisi wrote: > Add a __force attribute to the void* cast in acpi_os_map_iomem() > to prevent sparse warnings. Err, no. These annotation are there for a reason and need to be propagated instead. And independent of that a __force cast without a comment explaining it is a complete no-go.