Re: [PATCH 3/3] arm64: alpine: select AL_POS

From: Arnd Bergmann
Date: Mon Sep 09 2019 - 11:09:09 EST

On Mon, Sep 9, 2019 at 3:59 PM Shenhar, Talel <talel@xxxxxxxxxx> wrote:
> On 9/9/2019 4:45 PM, Arnd Bergmann wrote:
> Its not that something will get broken. its error event detector for POS
> events which allows seeing bad accesses to registers.
> What is the general rule of which configs to put under select and which
> under defconfig?
> I was thinking that "general" SoC support is good under select - those
> things that we always want.

I generally want as little as possible to be selected, basically only
things that are required for linking the kernel and booting it without
potentially destroying the hardware.

In particular, I want most drivers to be enabled as loadable modules
if possible. When you have general-purpose distributions support
your platform, there is no need to have this module built-in while
running on a different chip, even if you always want to load the
module when it's running on yours.

> And specific features, e.g. RAID support or features that supported only
> on specific HW shall go under defconfig.
> Similar, I see ARCH_LAYERSCAPE selecting EDAC_SUPPORT.

I think this was done to avoid a link failure. It's also possible that this
is a mistake and just did not get caught in review.