Re: [PATCH v4 01/13] kexec: consolidate kexec and crash options into kernel/Kconfig.kexec

[Eric DeVolder]

On 7/6/23 07:18, Arnd Bergmann wrote:
> On Wed, Jul 5, 2023, at 16:19, Eric DeVolder wrote:
> > +
> > +config CRASH_DUMP
> > +	bool "kernel crash dumps"
> > +	depends on ARCH_SUPPORTS_CRASH_DUMP
> > +	select CRASH_CORE
> > +	select KEXEC
>
> Today's linux-next now runs into a warning on arm64 and
> presumably others, with the same problem as on arm earlier:
>
> WARNING: unmet direct dependencies detected for KEXEC
>    Depends on [n]: ARCH_SUPPORTS_KEXEC [=n]
>    Selected by [y]:
>    - CRASH_DUMP [=y] && ARCH_SUPPORTS_CRASH_DUMP [=y]
>
> I think the easiest way to make this reliable would be
> this fixup:
>
> diff --git a/kernel/Kconfig.kexec b/kernel/Kconfig.kexec
> index d82a7ce59c051..e58ca6128d6ee 100644
> --- a/kernel/Kconfig.kexec
> +++ b/kernel/Kconfig.kexec
> @@ -91,6 +91,7 @@ config KEXEC_JUMP
>   config CRASH_DUMP
>          bool "kernel crash dumps"
>          depends on ARCH_SUPPORTS_CRASH_DUMP
> +       depends on ARCH_SUPPORTS_KEXEC
>          select CRASH_CORE
>          select KEXEC
>          help
>
>     Arnd

Will do, thanks!
I changed my testing to include allnoconfig and allyesconfig and that revealed some minor issues as 
well. Almost there!
eric