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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 567F3D3C549 for ; Fri, 18 Oct 2024 05:12:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=85SnbBBkefMZUzVxJ0mbqeomf8fXAjh2h8VzC0FU1rc=; b=XMF68v3s0783fOJUqeMVyGVLzG yKC/696+FjKHE6Sy1aR4QWGANVclb5oofJk6PjOq1uheVdS/HV9bCJkhOfwmdInOcuWDtVj8zL/9X /+84+/NZaiy8qlh5MfZja+90fLqxP1rzSw5x4FfP3Or1SrNx1BgJrOSrZVTGrBet+DmnAyLXq5Fhl dglvuHL3ovc0pfP/prRPnA8qLh+LwCzW/SBQAcP2P94WKw3+tUka9ek0NqKhv+gwsLpw6BUbTRZ7W 1YA3Djl9A5bwfOMDCVG0jYqRjYKm1BVE7TAMK08kdCwzUOI2xHw1t9fVzp/jvYvlf+oqkvP2QmL8c vP2UR3ig==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1t1fHS-0000000Gvvq-316g; Fri, 18 Oct 2024 05:12:06 +0000 Received: from verein.lst.de ([213.95.11.211]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1t1fHQ-0000000Gvuu-2NKW for linux-nvme@lists.infradead.org; Fri, 18 Oct 2024 05:12:05 +0000 Received: by verein.lst.de (Postfix, from userid 2407) id 1CD84227A8E; Fri, 18 Oct 2024 07:12:01 +0200 (CEST) Date: Fri, 18 Oct 2024 07:12:01 +0200 From: Christoph Hellwig To: Keith Busch Cc: linux-nvme@lists.infradead.org, hch@lst.de, Keith Busch Subject: Re: [PATCHv2] nvme: enhance cns version checking Message-ID: <20241018051201.GD19831@lst.de> References: <20241017181231.2937468-1-kbusch@meta.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20241017181231.2937468-1-kbusch@meta.com> User-Agent: Mutt/1.5.17 (2007-11-01) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241017_221204_776253_CF3FA861 X-CRM114-Status: GOOD ( 11.67 ) X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org On Thu, Oct 17, 2024 at 11:12:31AM -0700, Keith Busch wrote: > + if (ctrl->vs >= NVME_VS(1, 1, 0) && > + (!(ctrl->quirks & NVME_QUIRK_IDENTIFY_CNS))) No need for the braces around the ngation here. > + return cns <= 3; > + > + /* > + * NVMe 1.0 used a single bit for the CNS value. > + */ > + return cns <= 1; Slightly messed up indentation. Otherwise looks good: Reviewed-by: Christoph Hellwig