Re: [PATCH 1/2] AutoFDO: Remove the architecture specific config

[Will Deacon]

On Wed, Dec 11, 2024 at 02:29:42PM -0800, Rong Xu wrote:
> The CONFIG_AUTOFDO_CLANG option currently depends on
> ARCH_SUPPORTS_AUTOFDO_CLANG, but this dependency seems unnecessary.
> 
> Remove ARCH_SUPPORTS_AUTOFDO_CLANG and allow users to control AutoFDO
> builds solely through CONFIG_AUTOFDO_CLANG. This simplifies the kconfig
> and avoids potential confusion.
> 
> Signed-off-by: Rong Xu <xur@xxxxxxxxxx>
> Suggested-by: Will Deacon <will@xxxxxxxxxx>
> ---
>  arch/Kconfig     | 4 ----
>  arch/x86/Kconfig | 1 -
>  2 files changed, 5 deletions(-)

Acked-by: Will Deacon <will@xxxxxxxxxx>

However, you've dropped the previous hunk you had to
Documentation/dev-tools/autofdo.rst which had some text about using ETM
to collect fdo data on arm64. It seems like that might still be useful
to have?

Will