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 Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id F25EFC28B28 for ; Sat, 15 Mar 2025 21:06:36 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id D2FC9280002; Sat, 15 Mar 2025 17:06:33 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id CDC43280001; Sat, 15 Mar 2025 17:06:33 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id BA5FD280002; Sat, 15 Mar 2025 17:06:33 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0014.hostedemail.com [216.40.44.14]) by kanga.kvack.org (Postfix) with ESMTP id 9F144280001 for ; Sat, 15 Mar 2025 17:06:33 -0400 (EDT) Received: from smtpin07.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay05.hostedemail.com (Postfix) with ESMTP id 8C192531DF for ; Sat, 15 Mar 2025 21:06:35 +0000 (UTC) X-FDA: 83225019150.07.8CC2780 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by imf13.hostedemail.com (Postfix) with ESMTP id D44D320006 for ; Sat, 15 Mar 2025 21:06:33 +0000 (UTC) Authentication-Results: imf13.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=H7OUHnKi; dmarc=pass (policy=quarantine) header.from=kernel.org; spf=pass (imf13.hostedemail.com: domain of kees@kernel.org designates 139.178.84.217 as permitted sender) smtp.mailfrom=kees@kernel.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1742072794; a=rsa-sha256; cv=none; b=vn8mOyl73OwlAz/UnUgO233eazMbsIP4GP5bgbP4e0UaEOOv28Gex9B+h8YPvIkkgPW1FA K8zdR2y7/KXo62j65N0tJjosc66wZjjYX5NRIN8nSVSk/OjJ2YC/IUIXncopI5Ir1jVZvC g4Hvft+V9w69z/QBqRNnQ1thZz/a8DM= ARC-Authentication-Results: i=1; imf13.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=H7OUHnKi; dmarc=pass (policy=quarantine) header.from=kernel.org; spf=pass (imf13.hostedemail.com: domain of kees@kernel.org designates 139.178.84.217 as permitted sender) smtp.mailfrom=kees@kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1742072794; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=ESUJKBSdoETJMjPJ5rrLELBi/1g6d+wfwg2jUUp86dI=; b=MCQK6mj9g2SMaI56onZQ3wSczPQU1RvFU5rJcQE6Bi53T0+IjpTPHRAU9GodVdWaBPp7JQ RvNuo2/kw/FOke+Sf/fAFACcRwxfohpJBls6/pM14W1JN5cG9g6tJajax0OtPEVsxTtNZf u1u/aVOBwNYNWrMruqKZxW9e1unFzYo= Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id F39455C4642; Sat, 15 Mar 2025 21:04:15 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6B742C4CEE5; Sat, 15 Mar 2025 21:06:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1742072792; bh=FlVJ5imhiRn5VNO/DGLrnhEKpXT0naJJHp+CyhtqAnc=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=H7OUHnKiyKxWr0I5xGDO00+zloOUoQb89kqHTzRB/UHC9H4fwDtdAQrjnn6KRMZBi NJ7nzhBNwcc3OK+0DZcl9bTt3PN4WRcYlXrEf9m4MPx+20B8QGr0vPtvn3fiJxACUt o4iBTl6yuBFZYYcn3NkzCVAQd7bC4jVnOJ3GfpaoSWRmNukbz9iBdTUdIK8ZwIIqIW FxgyYwmNYwG+P75RvFXpCZp8OnQQVCZiQsgd7nhjcKLa/k9kt87L5X+1UIR+L003MJ AZNxCoUT97vK6iSUOSU0d/JYxe9dviOpL6UGaANvPg6YZ6JLTED3e1BP4+u6u4+TlK RH0Q9AdZL2ThQ== Date: Sat, 15 Mar 2025 14:06:29 -0700 From: Kees Cook To: Miguel Ojeda Cc: Vlastimil Babka , Miguel Ojeda , "Gustavo A. R. Silva" , Nathan Chancellor , Peter Zijlstra , Nick Desaulniers , Marco Elver , Przemek Kitszel , linux-hardening@vger.kernel.org, Christoph Lameter , Pekka Enberg , David Rientjes , Joonsoo Kim , Andrew Morton , Roman Gushchin , Hyeonggon Yoo <42.hyeyoo@gmail.com>, Bill Wendling , Justin Stitt , Jann Horn , Linus Torvalds , Greg Kroah-Hartman , Sasha Levin , Jonathan Corbet , Jakub Kicinski , Yafang Shao , Tony Ambardar , Alexander Lobakin , Jan Hendrik Farr , Alexander Potapenko , linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-doc@vger.kernel.org, llvm@lists.linux.dev Subject: Re: [PATCH v4 1/2] compiler_types: Introduce __flex_counter() and family Message-ID: <202503151406.19A299AF@keescook> References: <20250315025852.it.568-kees@kernel.org> <20250315031550.473587-1-kees@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: X-Rspam-User: X-Rspamd-Queue-Id: D44D320006 X-Rspamd-Server: rspam05 X-Stat-Signature: u5ns7drmwn4qh7jxdkrwufhk5szjdb17 X-HE-Tag: 1742072793-742474 X-HE-Meta: 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 ZS3JyeYt 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Sat, Mar 15, 2025 at 08:47:46PM +0100, Miguel Ojeda wrote: > On Sat, Mar 15, 2025 at 4:15 AM Kees Cook wrote: > > > > + * clang: https://github.com/llvm/llvm-project/pull/102549 > > That is an unmerged PR -- should we link to the merged one? > > Or, better, to the docs, since they seem to exist: > > https://clang.llvm.org/docs/LanguageExtensions.html#builtin-counted-by-ref Ah! Perfect. I was looking under builtins and couldn't find it. :) I will update the link. -- Kees Cook