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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 6FC8FFD0653 for ; Wed, 11 Mar 2026 08:06:03 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D9C1E10E82B; Wed, 11 Mar 2026 08:05:39 +0000 (UTC) Received: from relay.hostedemail.com (smtprelay0015.hostedemail.com [216.40.44.15]) by gabe.freedesktop.org (Postfix) with ESMTPS id 74D4410E173; Tue, 10 Mar 2026 14:16:50 +0000 (UTC) Received: from omf16.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay10.hostedemail.com (Postfix) with ESMTP id BF2B9C0E36; Tue, 10 Mar 2026 14:16:43 +0000 (UTC) Received: from [HIDDEN] (Authenticated sender: rostedt@goodmis.org) by omf16.hostedemail.com (Postfix) with ESMTPA id D3F9D2000E; Tue, 10 Mar 2026 14:14:32 +0000 (UTC) Date: Tue, 10 Mar 2026 10:14:42 -0400 From: Steven Rostedt To: Philipp Hahn Cc: amd-gfx@lists.freedesktop.org, apparmor@lists.ubuntu.com, bpf@vger.kernel.org, ceph-devel@vger.kernel.org, cocci@inria.fr, dm-devel@lists.linux.dev, dri-devel@lists.freedesktop.org, gfs2@lists.linux.dev, intel-gfx@lists.freedesktop.org, intel-wired-lan@lists.osuosl.org, iommu@lists.linux.dev, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-block@vger.kernel.org, linux-bluetooth@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-clk@vger.kernel.org, linux-erofs@lists.ozlabs.org, linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-gpio@vger.kernel.org, linux-hyperv@vger.kernel.org, linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, linux-leds@vger.kernel.org, linux-media@vger.kernel.org, linux-mips@vger.kernel.org, linux-mm@kvack.org, linux-modules@vger.kernel.org, linux-mtd@lists.infradead.org, linux-nfs@vger.kernel.org, linux-omap@vger.kernel.org, linux-phy@lists.infradead.org, linux-pm@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-s390@vger.kernel.org, linux-scsi@vger.kernel.org, linux-sctp@vger.kernel.org, linux-security-module@vger.kernel.org, linux-sh@vger.kernel.org, linux-sound@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-trace-kernel@vger.kernel.org, linux-usb@vger.kernel.org, linux-wireless@vger.kernel.org, netdev@vger.kernel.org, ntfs3@lists.linux.dev, samba-technical@lists.samba.org, sched-ext@lists.linux.dev, target-devel@vger.kernel.org, tipc-discussion@lists.sourceforge.net, v9fs@lists.linux.dev, Julia Lawall , Nicolas Palix , Chris Mason , David Sterba , Ilya Dryomov , Alex Markuze , Viacheslav Dubeyko , Theodore Ts'o , Andreas Dilger , Steve French , Paulo Alcantara , Ronnie Sahlberg , Shyam Prasad N , Tom Talpey , Bharath SM , Eric Van Hensbergen , Latchesar Ionkov , Dominique Martinet , Christian Schoenebeck , Gao Xiang , Chao Yu , Yue Hu , Jeffle Xu , Sandeep Dhavale , Hongbo Li , Chunhai Guo , Miklos Szeredi , Konstantin Komarov , Andreas Gruenbacher , Kees Cook , Tony Luck , "Guilherme G. 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Peter Anvin" , Pali =?UTF-8?B?Um9ow6Fy?= , Dmitry Torokhov Subject: Re: [PATCH 00/61] treewide: Use IS_ERR_OR_NULL over manual NULL check - refactor Message-ID: <20260310101220.24a5c5e9@gandalf.local.home> In-Reply-To: <20260310-b4-is_err_or_null-v1-0-bd63b656022d@avm.de> References: <20260310-b4-is_err_or_null-v1-0-bd63b656022d@avm.de> X-Mailer: Claws Mail 3.20.0git84 (GTK+ 2.24.33; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Stat-Signature: t3hdewhrhasw7f3gorx5jroa8bfttu61 X-Rspamd-Server: rspamout02 X-Rspamd-Queue-Id: D3F9D2000E X-Session-Marker: 726F737465647440676F6F646D69732E6F7267 X-Session-ID: U2FsdGVkX1/9Mzn/qfZFEp1e7RgFq11s4n8TXcGF42g= X-HE-Tag: 1773152072-399195 X-HE-Meta: U2FsdGVkX1/sr455L+OeqDWIUsSflk6pOnirfnKU4P+1ptXPBptvvQtdgLpKUro5xpE5mwL9OSxc8De42fWUKW3UA0xDjLt8deOx7Rt+YD2zdLsgLNPt+GtW9t0OIk6HGza/DLYz3Vzwa6W2j9RFRkt0u8kU/4nSdzQFXg0XUCPq0O7Zih2HPR5kbJC2dqX8fgpgG6kXbyGWAJWC5H8NEAgNiaeFS1ibRza8HlDqKtmihYdG70k1ID4dNk90G/xB/tCbIhXs0SuHsvdkjj/J9rzzD7qFP/bRWTfcgm+WhH9Nv5Rz067I1rPqmO4dO7ez X-Mailman-Approved-At: Wed, 11 Mar 2026 08:04:38 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" On Tue, 10 Mar 2026 12:48:26 +0100 Philipp Hahn wrote: > While doing some static code analysis I stumbled over a common pattern, > where IS_ERR() is combined with a NULL check. For that there is > IS_ERR_OR_NULL(). > > I've written a Coccinelle patch to find and patch those instances. > The patches follow grouped by subsystem. Honestly, the IS_ERR_OR_NULL() looks worse in a lot of the locations you updated. Just because we have IS_ERR_OR_NULL() doesn't mean we need to go and replace every location that can use it. NAK for any code this touches that I'm responsible for. -- Steve