On 27 June 2017 at 00:57, Doug Berger <open...@gmail.com> wrote: > The fixmap pages need to be on the same pmd page for the current > implementation of arm early_fixmap. A build time bug check is > used to ensure that. However, the worst case fixmap range is > better represented by __end_of_fixed_addresses than by the value > __end_of_early_ioremap_region. > > Fixes: 2937367b8a4b ("ARM: add support for generic > early_ioremap/early_memremap") > Signed-off-by: Doug Berger <open...@gmail.com> > --- > arch/arm/mm/mmu.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c > index 31af3cb59a60..74c0ed5c3b08 100644 > --- a/arch/arm/mm/mmu.c > +++ b/arch/arm/mm/mmu.c > @@ -392,7 +392,7 @@ void __init early_fixmap_init(void) > * The early fixmap range spans multiple pmds, for which > * we are not prepared: > */ > - BUILD_BUG_ON((__fix_to_virt(__end_of_early_ioremap_region) >> > PMD_SHIFT) > + BUILD_BUG_ON((__fix_to_virt(__end_of_fixed_addresses) >> PMD_SHIFT) > != FIXADDR_TOP >> PMD_SHIFT); > > pmd = fixmap_pmd(FIXADDR_TOP);
Acked-by: Ard Biesheuvel <ard.biesheu...@linaro.org>