Re: [PATCH QUESTION] arm64: configs: Add Snapdragon 845 config fragment

[Catalin Marinas <catalin.marinas@arm.com>]

On Wed, Nov 26, 2025 at 05:19:20PM +0100, David Heidelberg via B4 Relay wrote:
> From: Casey Connolly <casey.connolly@linaro.org>
> 
> This fragment provides reasonable default for the mobile devices
> based on Snapdragon 845 architecture. While default config could be
> used, the reality is it brings many issues to the development workflows,
> which are much harder to address than on generic boards or devices with
> available UART console.
> 
> This config fragment produces the .config used by distributions.
> It is designed to be fairly minimal and specific to the
> supported SDM845 devices whilst offering all the features you would
> expect.
> 
> It disables other arm64 architectures to speed up build times and
> decrease the size of the kernel image.
> 
> To generate a .config use "make defconfig sdm845.config"
> 
> [David]
>  - Dropped distribution specific options.
>  - Added entry into the MAINTAINERS file.
[...]
>  MAINTAINERS                      |    5 +
>  arch/arm64/configs/sdm845.config | 1048 ++++++++++++++++++++++++++++++++++++++
>  2 files changed, 1053 insertions(+)

I really don't think the kernel should carry configs other than the
generic ones used by developers. We had this on arm32 but mostly because
we didn't have a single kernel image for a long time (and when we got
it, it was mostly for v7 cores). I don't want to get back to hosting a
multitude of configs in mainline.

-- 
Catalin