On Sun, May 26, 2024 at 11:22:25AM +0200, Christophe Leroy wrote:
> Building on 32 bits with pmd_leaf() not returning always false leads
> to the following error:
>
> CC arch/powerpc/mm/pgtable.o
> arch/powerpc/mm/pgtable.c: In function '__find_linux_pte':
> arch/powerpc/mm/pgtable.c:506:1: error: function may return address of local variable [-Werror=return-local-addr]
> 506 | }
> | ^
> arch/powerpc/mm/pgtable.c:394:15: note: declared here
> 394 | pud_t pud, *pudp;
> | ^~~
> arch/powerpc/mm/pgtable.c:394:15: note: declared here
>
> This is due to pmd_offset() being a no-op in that case.
>
> So rework it for powerpc/32 so that pXd_offset() are used on real
> pointers and not on on-stack copies.
>
> Signed-off-by: Christophe Leroy <[email protected]>
Reviewed-by: Oscar Salvador <[email protected]>
--
Oscar Salvador
SUSE Labs