From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <linux-block-owner@vger.kernel.org>
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 CD251EB64DC
	for <linux-block@archiver.kernel.org>; Thu, 20 Jul 2023 16:04:33 +0000 (UTC)
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S230007AbjGTQEc (ORCPT <rfc822;linux-block@archiver.kernel.org>);
        Thu, 20 Jul 2023 12:04:32 -0400
Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37200 "EHLO
        lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
        with ESMTP id S229563AbjGTQEb (ORCPT
        <rfc822;linux-block@vger.kernel.org>);
        Thu, 20 Jul 2023 12:04:31 -0400
Received: from pidgin.makrotopia.org (pidgin.makrotopia.org [185.142.180.65])
        by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1956FCE;
        Thu, 20 Jul 2023 09:04:31 -0700 (PDT)
Received: from local
        by pidgin.makrotopia.org with esmtpsa (TLS1.3:TLS_AES_256_GCM_SHA384:256)
         (Exim 4.96)
        (envelope-from <daniel@makrotopia.org>)
        id 1qMW70-0004pa-2K;
        Thu, 20 Jul 2023 16:02:42 +0000
Date:   Thu, 20 Jul 2023 17:02:32 +0100
From:   Daniel Golle <daniel@makrotopia.org>
To:     Christoph Hellwig <hch@infradead.org>
Cc:     Jens Axboe <axboe@kernel.dk>, Ulf Hansson <ulf.hansson@linaro.org>,
        Miquel Raynal <miquel.raynal@bootlin.com>,
        Richard Weinberger <richard@nod.at>,
        Vignesh Raghavendra <vigneshr@ti.com>,
        Dave Chinner <dchinner@redhat.com>,
        Matthew Wilcox <willy@infradead.org>,
        Thomas =?iso-8859-1?Q?Wei=DFschuh?= <linux@weissschuh.net>,
        Jan Kara <jack@suse.cz>, Damien Le Moal <dlemoal@kernel.org>,
        Ming Lei <ming.lei@redhat.com>, Min Li <min15.li@samsung.com>,
        Christian Loehle <CLoehle@hyperstone.com>,
        Adrian Hunter <adrian.hunter@intel.com>,
        Hannes Reinecke <hare@suse.de>,
        Jack Wang <jinpu.wang@ionos.com>,
        Florian Fainelli <f.fainelli@gmail.com>,
        Yeqi Fu <asuk4.q@gmail.com>, Avri Altman <avri.altman@wdc.com>,
        Hans de Goede <hdegoede@redhat.com>,
        Ye Bin <yebin10@huawei.com>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        =?utf-8?B?UmFmYcWCIE1pxYJlY2tp?= <rafal@milecki.pl>,
        linux-block@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-mmc@vger.kernel.org, linux-mtd@lists.infradead.org
Subject: Re: [RFC PATCH 6/6] block: implement NVMEM provider
Message-ID: <ZLlaOB1sb8wSd7Aq@makrotopia.org>
References: <cover.1689802933.git.daniel@makrotopia.org>
 <e5b709e15739dc0563e9497a2dbbe63050381db0.1689802933.git.daniel@makrotopia.org>
 <ZLjci5bHzTI+/Kxs@infradead.org>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <ZLjci5bHzTI+/Kxs@infradead.org>
Precedence: bulk
List-ID: <linux-block.vger.kernel.org>
X-Mailing-List: linux-block@vger.kernel.org

On Thu, Jul 20, 2023 at 12:04:43AM -0700, Christoph Hellwig wrote:
> The layering here is exactly the wrong way around.  This block device
> as nvmem provide has not business sitting in the block layer and being
> keyed ff the gendisk registration.  Instead you should create a new
> nvmem backed that opens the block device as needed if it fits your
> OF description without any changes to the core block layer.
> 

Ok. I will use a class_interface instead.