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=-7.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 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 6F329C433B4 for ; Tue, 20 Apr 2021 14:56:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1ECA6613CA for ; Tue, 20 Apr 2021 14:56:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232787AbhDTO5P (ORCPT ); Tue, 20 Apr 2021 10:57:15 -0400 Received: from mail.kernel.org ([198.145.29.99]:57246 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232507AbhDTO5P (ORCPT ); Tue, 20 Apr 2021 10:57:15 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id DB6AE613C9; Tue, 20 Apr 2021 14:56:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1618930603; bh=OjpAHxYSjz1nKguIwOjvjwG797cyGyxRd8zj1GA8A6I=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=QSi1gD4gRZii1uwZWu3lWIdjF68NqC0N2ErMHIfJSr9B2M4LxAR1tFLqHcXAyH8XU qAcZN6Kzx0V82cKA4OzsAJHwDtTcrETA5zvlGn5DS2JRyaSYrVQ3OmVUpQyAXHqgT4 ZnRUXmA6fO5Uzs+Ab5XFMjtlnMCN06fX9Yh3rb79UZZdCtQGgMSHV0skPci6Rn8ED+ hTWyuZAvL3hfWxnIpnIHO/8n5Hxw4AQFdwL4MDTL+gW1igYuXWA+/ZxFk5uETX9gSt zTKNmiLDuRWcyOyYUOYXWxe9OvEmBBpdtcjvCX/GmId605oKo4wqNs4DeiHpyVOAb1 pt3Ol4pRbgaug== Date: Tue, 20 Apr 2021 15:56:16 +0100 From: Mark Brown To: Andy Shevchenko Cc: linux-spi@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v1 2/2] spi: Avoid potential UB when counting unused native CSs Message-ID: <20210420145616.GC6073@sirena.org.uk> References: <20210420141004.59936-1-andriy.shevchenko@linux.intel.com> <20210420141004.59936-2-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="8X7/QrJGcKSMr1RN" Content-Disposition: inline In-Reply-To: <20210420141004.59936-2-andriy.shevchenko@linux.intel.com> X-Cookie: Falling rock. User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org --8X7/QrJGcKSMr1RN Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Tue, Apr 20, 2021 at 05:10:04PM +0300, Andy Shevchenko wrote: > ffz(), that has been used to count unused native CSs, might produce UB Bit of an IA there... --8X7/QrJGcKSMr1RN Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAmB+65AACgkQJNaLcl1U h9AJgQf/agvyEji+YtnLOMfyI4yiAeKBCbuq7ii0u6jLgUpgJBBA0cxRzNrUWCwt GPZyz+mbEm8XuHjviwgCDbRIC5Hr1r2HzDzD1LLPn1UmEwVC4MBJ/uY4x9pRa5gJ h/mfgt9U9k8mQzVIPwRq/ZWPAAXLA9uUf05a+sPmfgafrMcnAlDx+uiDZz0mRvZd Qd9B5qVd2sPhbgoYNwrARx8xMho0y8JryRVg5H3XIFmDWZa2bl5Wvjb42TEBiOXm Y6SIXzf0cLhWVqEf3pSOYA+DIfCYNY2otIrin7AaGYofLBqCC3J1gVgkP0zCIm1a XItdzeRynrjho8XN/kGghM2AklaDDg== =CmGw -----END PGP SIGNATURE----- --8X7/QrJGcKSMr1RN--