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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 19B7FC4332F for ; Tue, 13 Dec 2022 08:51:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234823AbiLMIvl (ORCPT ); Tue, 13 Dec 2022 03:51:41 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57902 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234825AbiLMIvL (ORCPT ); Tue, 13 Dec 2022 03:51:11 -0500 Received: from verein.lst.de (verein.lst.de [213.95.11.211]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B53342192 for ; Tue, 13 Dec 2022 00:51:09 -0800 (PST) Received: by verein.lst.de (Postfix, from userid 2407) id 0458D68D06; Tue, 13 Dec 2022 09:50:59 +0100 (CET) Date: Tue, 13 Dec 2022 09:50:57 +0100 From: Christoph Hellwig To: Klaus Jensen Cc: linux-nvme@lists.infradead.org, Christoph Hellwig , Keith Busch , Jens Axboe , Sagi Grimberg , linux-kernel@vger.kernel.org, Klaus Jensen , Guenter Roeck Subject: Re: [PATCH] nvme-pci: fix doorbell buffer value endianness Message-ID: <20221213085057.GA3998@lst.de> References: <20221212150243.41283-1-its@irrelevant.dk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20221212150243.41283-1-its@irrelevant.dk> User-Agent: Mutt/1.5.17 (2007-11-01) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Dec 12, 2022 at 04:02:43PM +0100, Klaus Jensen wrote: > - old_value = *dbbuf_db; > - *dbbuf_db = value; > + old_value = le32_to_cpu(*dbbuf_db); > + *dbbuf_db = cpu_to_le32(value); As the buildbot noticed, this now means dbbuf_dbs needs to be a __le32, and the endianess annoations will have to wee through quite a few places.