Re: [PATCH] asm-generic: make more kernel-space headers mandatory

[Andrew Morton]

On Tue, 11 Feb 2020 02:54:52 +0900 Masahiro Yamada <masahiroy@xxxxxxxxxx> wrote:

> Change a header to mandatory-y if both of the following are met:
> 
> [1] At least one architecture (except um) specifies it as generic-y in
>     arch/*/include/asm/Kbuild
> 
> [2] Every architecture (except um) either has its own implementation
>     (arch/*/include/asm/*.h) or specifies it as generic-y in
>     arch/*/include/asm/Kbuild

(reads Documentation/kbuild/makefiles.rst to remember what these things
do).

Why are we making this change?  What's the benefit?