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 1042E28FFC0; Tue, 22 Apr 2025 15:49:26 +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=1745336966; cv=none; b=sT8A/aiTsg5UjZeyT4/Qbr8oDeqEel4C/E5DleX7BfhobbhWluJoa3gV8CzCYxwCKZ/G23jaGsxrYcpgxZ6jGWjwL57d+qWmdWsJA+qpeaMG7tNrGUngbLPYgf2MD/AckORUCKr5/0mXknXqazMAfD/O0sGgsODU4Dsu2nMbtNw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745336966; c=relaxed/simple; bh=F8r3LMqn4Bi/IWC6gn/fsQt778NPJ8n3QrgvX+Iq9C0=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=sqVBeZKeSlaSP7XEgIDw3c5WtdtPKgQ1kKFaQHE1KTUz0ueVmpIWTLgyHS+JCJ4+J1T00iwmC02M8EqDA+RT8GmlKMkbDv4OEG2eZElNqnXQZP/+KGJ+LSqvIJac/pGph43T65qHR257+gF9wCxHjFwjZQAkeZM5LqAQ12IUjwo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=mgvmWMH+; 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="mgvmWMH+" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D3EA3C4CEE9; Tue, 22 Apr 2025 15:49:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1745336965; bh=F8r3LMqn4Bi/IWC6gn/fsQt778NPJ8n3QrgvX+Iq9C0=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=mgvmWMH+IDP1nMUfhkQDwf7RRMKP0kemox5om1901k7NzTYJ3JBXH3EpnFSFRG3d9 x8+cLHcG1hJxPPSS9o/jrePHanM18OqeKp1fvc8O5cNGjn9HsmEkyZ//1IVe2dg1bd /kwNRDq+np5LP1U9NR/EWkNJtpfiMtxwfWxUoOv/gS+B29sxFcW3PWbmeTciiuSxr4 DXlVnx/18NDQadYi5A+Qt7TaDvLyNRPNpQo3toqGG9p7uQCa/I6H+tv7RDNu2U0+sl dVwF/892EzGUuZkAG5hALymoMku2+CvTSYmVVEtBYS5GMTZxlhxQOSWHMmzTq5TwO+ GrmLtL5uVYsLQ== Date: Tue, 22 Apr 2025 08:49:23 -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: disp: Use __member_size() helper Message-ID: <202504220849.A8A9B1D31@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 09:44:56AM -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