[PATCH 2/4] m68k/mm: m54xx - Add missing initialization of max_pfn

Geert Uytterhoeven
2015-11-15T11:43:13Z

If max_pfn is not initialized, the various /proc/kpage* files are empty,
and selftests/vm/mlock2-tests will fail. max_pfn is also used by the
block layer to calculate DMA masks.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
---
Compile-tested only.
---
arch/m68k/coldfire/m54xx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/m68k/coldfire/m54xx.c b/arch/m68k/coldfire/m54xx.c
index f7836c6a6b60eb24..c32f76791f488ae1 100644
--- a/arch/m68k/coldfire/m54xx.c
+++ b/arch/m68k/coldfire/m54xx.c
@@ -98,7 +98,7 @@ static void __init mcf54xx_bootmem_alloc(void)
memstart = PAGE_ALIGN(_ramstart);
min_low_pfn = PFN_DOWN(_rambase);
start_pfn = PFN_DOWN(memstart);
- max_low_pfn = PFN_DOWN(_ramend);
+ max_pfn = max_low_pfn = PFN_DOWN(_ramend);
high_memory = (void *)_ramend;

m68k_virt_to_node_shift = fls(_ramend - _rambase - 1) - 6;
--
1.9.1