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 <christophe.leroy@xxxxxxxxxx> Maybe this could be folded into the patch that makes pmd_leaf() not returning always false, but no strong feelings: Reviewed-by: Oscar Salvador <osalvador@xxxxxxx> -- Oscar Salvador SUSE Labs
