On Thursday 07 July 2022 09:56:04 Christophe Leroy wrote:

Le 04/07/2022 à 15:43, Arnd Bergmann a écrit :

quoted

On Mon, Jul 4, 2022 at 3:29 PM Pali Rohár [off-list ref] wrote:

quoted

And still what to do with 4bf4f42a2feb ("powerpc/kbuild: Set default
generic machine type for 32-bit compile")? I'm somehow lost there...

As far as I can tell, that is not needed, as long as every configuration
sets a specific -mcpu= option, the only reason it was required is that
there were some configs that relied on the compiler default, which
ended up being -mcpu=power8 or similar.

Is there any link between this discussion and the following patch 
submitted 3,5 years ago ?

https://patchwork.ozlabs.org/project/linuxppc-dev/patch/20181226141511.3ag7uf6rvdgzlmxt@decadent.org.uk/

Thanks
Christophe

Seems that above patch tried to fix same issue. I did not know about it.