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

From: Olof Johansson
Date: Mon Oct 17 2016 - 17:59:49 EST


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.