linux-kernel - Re: [RFC PATCH 4/4] block: add uImage.FIT block partition driver

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Message-ID: <Y3XNbE/UEGzLFOkd@infradead.org>
Date:   Wed, 16 Nov 2022 21:58:04 -0800
From:   Christoph Hellwig <hch@...radead.org>
To:     Daniel Golle <daniel@...rotopia.org>
Cc:     Christoph Hellwig <hch@...radead.org>,
        Jens Axboe <axboe@...nel.dk>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Chaitanya Kulkarni <kch@...dia.com>,
        Wolfram Sang <wsa+renesas@...g-engineering.com>,
        linux-block@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH 4/4] block: add uImage.FIT block partition driver

On Thu, Nov 17, 2022 at 12:45:05AM +0000, Daniel Golle wrote:
> Add a small block driver which allows exposing filesystem sub-images
> contained in U-Boot uImage.FIT images as block partitions.
> The driver is intended for system using the U-Boot bootloader and
> requires the user to specify the lower block device to be specified
> as module parameter 'lower_dev'.

Umm, this is is not a block device driver.  A block device driver
would take in bios and the upper devices it creates and then submit
them to the lower devices.