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);
--
2.13.0
