Re: [RFC PATCH 0/6] nvmem: add block device NVMEM provider

[Christoph Hellwig]

On Wed, Jul 19, 2023 at 11:01:14PM +0100, Daniel Golle wrote:
> This series is meant to open the discussion on how exactly the device tree
> schema for block devices and partitions may look like, and even if using
> the block layer to back the NVMEM device is at all the way to go -- to me
> it seemed to be a good solution because it will be reuable e.g. for NVMe.

If only NVMe did something sane there.  NVMe copied the completely
idiotic idea of boot partitions from eMMC/SD, and made it even worse
by first requiring bit banged register access for them, and now adding
a weird admin command to read them, which is not bound to a block
device.  If we want to support that in NVMe we'll need code in the
nvme core, but I hope we can avoid it and no one sane (that is
everyone but the completely clueless BIOS people at Intel) will never
use this completely fucked up boot partition concept.