On Fri, 12 Nov 2021, Geert Uytterhoeven wrote: > > index 9f3f77785aa7..5b6575eb6d02 100644 > > --- a/arch/m68k/mm/motorola.c > > +++ b/arch/m68k/mm/motorola.c > > @@ -455,6 +455,8 @@ void __init paging_init(void) > > > > flush_tlb_all(); > > > > + early_memtest(min_addr, max_addr); > > So this is available only if MMU_MOTOROLA, not for Sun-3, Coldfire, or > nommu. > That's because I can't test the others. If anyone would be willing to test a patch like this for Coldfire etc., please let me know and I'll send one.