From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pj1-f48.google.com (mail-pj1-f48.google.com [209.85.216.48]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9949C2115 for ; Sun, 22 Jan 2023 20:49:03 +0000 (UTC) Received: by mail-pj1-f48.google.com with SMTP id z9-20020a17090a468900b00226b6e7aeeaso9405283pjf.1 for ; Sun, 22 Jan 2023 12:49:03 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20210112.gappssmtp.com; s=20210112; h=content-transfer-encoding:in-reply-to:from:content-language :references:cc:to:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=5WJZMQA7v4Th1qcxlhjbVBkGKPGVYQAd/RZT7qOQl8U=; b=kt0tafUOm0RxWZP0+BbaOKGRYiP89lUi7mOxliO2REmvNBNgn9fWT/DAzXu7XM80pa rPM2c1goiHbQvBrorvYNcJrw4hH5ecLv9x5JD3v3ge5Q7xOmfjLweHJfYaeMxVKZB2De mO5XMZz42JyiZZPhCDrr3U2JXm0lhDXDjXqETAxBrjxTMNUQieZldZbCnW1k8I1nnB/V CIdwKKY9zbKcppBWDB7ZuScmHMuhVjtGvPNuCbDluI7dU/71myIXe/9ncMi4g4D3ufbr quI/wu9Iezx4w6+VeE5QV60qhFYxrPDYtlH925ztGlqdwqW7MCjWE+isA3HWV6r4qc2H qItg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:in-reply-to:from:content-language :references:cc:to:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=5WJZMQA7v4Th1qcxlhjbVBkGKPGVYQAd/RZT7qOQl8U=; b=fRbrmaMo6GAL/g5776ziWxM5K+S8BXEKfmcbXVtEhqRPEqcyo3UrvvD+2OFZF88YUO TgwQpM6d4zC9vDGAtXBQ3luxwmG7K1vak7rPsPHoz49Z9haUibi2Q3r19Hy5jY/9G+HN mpCLc5e1mNCogKeV5ZjlnHiDp3j8RYY8zBOF9QAjFzylCTCxCQdW86z7bDJG2FcS+a28 tlM69eyn22fdp8VPvaSzeBZv0XOPuZq0mdtfQ3mnf5Dbet+03z8ELLadu3zmq/t9ltZn bGHdj7CdygrrLdJ+b8XpxGwyYoGLORFMnqSTNJYKHVWOqxVmng749ISLv+73KJ//gOOr FJyA== X-Gm-Message-State: AFqh2koXk2Mj+nQu3Ra36rrjsTNs29RKruHb/QqUwGJrK5qVrHMEXWBE RYxXadeaZipCKRoYF2XYaiMm9Q== X-Google-Smtp-Source: AMrXdXvyQSV+qYXNvJm+cGGxO2TAXRsOirLpHAx65emFQK0O6KYlUqfGqEx6JIp+BtRNcviWHOKlbQ== X-Received: by 2002:a05:6a20:429e:b0:b5:f664:b4bc with SMTP id o30-20020a056a20429e00b000b5f664b4bcmr7108121pzj.2.1674420542819; Sun, 22 Jan 2023 12:49:02 -0800 (PST) Received: from [192.168.1.136] ([198.8.77.157]) by smtp.gmail.com with ESMTPSA id u64-20020a627943000000b00581816425f3sm29636220pfc.112.2023.01.22.12.49.01 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 22 Jan 2023 12:49:02 -0800 (PST) Message-ID: <1a501bc9-7058-6c47-0ebf-44459bc0e730@kernel.dk> Date: Sun, 22 Jan 2023 13:49:00 -0700 Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux aarch64; rv:102.0) Gecko/20100101 Thunderbird/102.6.0 Subject: Re: [PATCH v2] paride/pcd: return earlier when an error happens in pcd_atapi() To: Tom Rix , tim@cyberelk.net, nathan@kernel.org, ndesaulniers@google.com Cc: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, llvm@lists.linux.dev References: <20230122154901.505142-1-trix@redhat.com> Content-Language: en-US From: Jens Axboe In-Reply-To: <20230122154901.505142-1-trix@redhat.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit On 1/22/23 8:49 AM, Tom Rix wrote: > clang static analysis reports > drivers/block/paride/pcd.c:856:36: warning: The left operand of '&' > is a garbage value [core.UndefinedBinaryOperatorResult] > tocentry->cdte_ctrl = buffer[5] & 0xf; > ~~~~~~~~~ ^ Has this one been compiled? I'm guessing not tested... In any case, this code is going away hopefully shortly, so let's not bother with changes like this. -- Jens Axboe