linux-kernel - Re: [PATCH 0/8] nvmem: Let layout drivers be modules

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Date:   Wed, 1 Mar 2023 16:34:53 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Miquel Raynal <miquel.raynal@...tlin.com>
Cc:     Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        linux-kernel@...r.kernel.org, Michael Walle <michael@...le.cc>,
        devicetree@...r.kernel.org, Rob Herring <robh+dt@...nel.org>,
        Frank Rowand <frowand.list@...il.com>,
        Robert Marko <robert.marko@...tura.hr>,
        Luka Perkov <luka.perkov@...tura.hr>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        rafal@...ecki.pl
Subject: Re: [PATCH 0/8] nvmem: Let layout drivers be modules

On Wed, Mar 01, 2023 at 04:22:31PM +0100, Miquel Raynal wrote:
> Hello,
> 
> Following Greg's opposition to merge the current nvmem layout support
> proposal [1], arguing that it would eventually grow the size of the
> Linux kernel and asking for some "modularization" support, here is a
> proposal to turn layout drivers into regular tristate drivers.
> 
> The first three patches are preparation changes in order to extend (and
> fix) a little bit the of/device.c support. The fix does not seem to
> impact most of the current users so I guess it can live with the rest of
> the series in order to avoid future merge conflicts.
> 
> The nvmem core is then extended to support the absence of layouts and
> possibly lead to probe deferrals when relevant.
> 
> Finally, the two existing layout drivers are converted into modules and
> their Kconfig symbols changed to tristate.
> 
> The base series on which these changes apply is still contained in [1],
> I would prefer to keep it as it was and apply this series on top of it.
> 
> Tests have been conducted on a Marvell Prestera switch with the mvpp2
> Ethernet driver calling for a MAC address stored in the ONIE TLV table
> available through a layout driver in an EEPROM/MTD device.
> 
> [1] https://github.com/miquelraynal/linux/tree/nvmem-next/layouts

These look sane to me, thanks for making the changes.

greg k-h