Re: [PATCH v2] arm64: defconfig: enable EEPROM_AT25 config option

From: Scott Branden
Date: Mon Oct 17 2016 - 19:24:54 EST

Hi Olof,

On 16-10-17 02:58 PM, Olof Johansson wrote:

On Wed, Oct 12, 2016 at 11:51 AM, Scott Branden
<scott.branden@xxxxxxxxxxxx> wrote:
Enable support for on board SPI EEPROM by turning on
CONFIG_EEPROM_AT25. This needs to be on in order to
boot and test the kernel with a static rootfs image
that is not rebuilt everytime the kernel is rebuilt.

If we did this for every kernel option we'd get a huge kernel.

In general, we've said that static options for what's needed to boot
to rootfs (i.e. storage and network drivers for nfsroot) are fine to
enable statically.

I doubt you need the EEPROM driver to boot to rootfs on your system,
so please enable it as a module instead.

Look into using config fragments in case you need to modify the
options for local builds, it should be a convenient way to have a
small delta to apply to fit your internal needs, instead of completely
forking the config file.

Do you allow such config fragments to be upstreamed or do we need to maintain these in our tree?