From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2985F7DA66; Tue, 22 Apr 2025 15:49:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745336974; cv=none; b=J9OL6qNXMFsxuXx5hxXDyZcfM3x6S2rz5dd0Z6uzN6mzAwUs30kiV7AWITIfHG4z79F4alvreUH/qzFxAaWsfdrkICipIU1EM+b5BZyFK6ykjSgAC7Ky/j3x2Ow9ET5CtHJWy6YuuhYeF/Z7DinhjfaVtMAlPzrc7rjctdpVRmA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745336974; c=relaxed/simple; bh=5GOMuvIE+7EsbF04NswrnSuLp3VvDN4BQnu1VTgx080=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=CTL99uygds3UD4Niw8I28CiSLXyJdz1fpVkBjZ30dBXXT/0SY7RHCa/bC6ZWQOkCQFekHirMEuH6SMFLGmhgjq7vtcQyJVl2u0NRd28oYCZgn6MwkFM25JaW2E8jJLVhdz2E5/CyPLy3F/vxj7u+So7yWkAYwNPoogHU9nDGSHk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=s2ik30OE; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="s2ik30OE" Received: by smtp.kernel.org (Postfix) with ESMTPSA id F2DE8C4CEE9; Tue, 22 Apr 2025 15:49:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1745336974; bh=5GOMuvIE+7EsbF04NswrnSuLp3VvDN4BQnu1VTgx080=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=s2ik30OE2PgSyHjVZ3CA+slsyUMRhiQ9+E9aOz1/kSCVSB6csdlcpr9mBOgYB0hZb yVwFq9w6HexungrrST9nr19K+OfpXVQnWgzJWwEOs6rtjuxEacLWrRtus8JwTt5uUv Iyyuxue2n5aSttEbaXPhHlwVtPludc/m+AZTpU/efh8sWyJUY7XQnxLYMBbDu4Nk2v d+QYLUP/5q3bJ1oG37m5HUnQMMZ95LDmKuMYheRTgeQCOXf7L7NebwoHHFARngqYCs Oswv0/YpKwtrq6AXlBklXOew6xhfKnaKSvW54yLjrlI/cgAVdJmBvDVbnZBZldYS8N Cv5VCkGSxjOMg== Date: Tue, 22 Apr 2025 08:49:30 -0700 From: Kees Cook To: "Gustavo A. R. Silva" Cc: Lyude Paul , Danilo Krummrich , David Airlie , Simona Vetter , dri-devel@lists.freedesktop.org, nouveau@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-hardening@vger.kernel.org Subject: Re: [PATCH][next] drm/nouveau: outp: Use __member_size() helper Message-ID: <202504220849.3BDE692@keescook> References: 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: On Tue, Apr 22, 2025 at 09:45:39AM -0600, Gustavo A. R. Silva wrote: > Use __member_size() to get the size of the flex-array member at compile > time, instead of the convoluted expression `__struct_size(p) - sizeof(*p)` > > Signed-off-by: Gustavo A. R. Silva Reviewed-by: Kees Cook -- Kees Cook