linux-kernel - Re: [PATCH v5 3/4] partitions/efi: add support for uImage.FIT sub-partitions

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Date:   Thu, 17 Nov 2022 07:50:08 +0100 (CET)
From:   Richard Weinberger <richard@....at>
To:     Christoph Hellwig <hch@...radead.org>
Cc:     Daniel Golle <daniel@...rotopia.org>, Jens Axboe <axboe@...nel.dk>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Vignesh Raghavendra <vigneshr@...com>,
        Matthew Wilcox <willy@...radead.org>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Chaitanya Kulkarni <kch@...dia.com>,
        Michal Orzel <michalorzel.eng@...il.com>,
        linux-block <linux-block@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        linux-mtd <linux-mtd@...ts.infradead.org>
Subject: Re: [PATCH v5 3/4] partitions/efi: add support for uImage.FIT
 sub-partitions

----- Ursprüngliche Mail -----
> Von: "Christoph Hellwig" <hch@...radead.org>
> On Thu, Nov 17, 2022 at 12:19:10AM +0000, Daniel Golle wrote:
>> While weirdness is certainly subjective, uImage.FIT is not just a
>> random image format but used by a great majority of headless embedded
>> Linux devices out there. It's the default image format of many of the
>> SDKs distributed by chip vendors such as Allwinner, Marvell, MediaTek,
>> NXP, Qualcomm/Atheros, ...
> 
> "Look see, my weird format is used by all these companies building
> crappy SOCs, it is not weird.."

Well, FIT is not something strange invented by SoC companies, it comes from u-boot
and is more or less a de-facto standard.
While I agree that using the block layer for partition parsing is questionable
I think supporting these images in Linux is a worthwhile goal.

Thanks,
//richard