[PATCH v4 03/13] ARM: LPAE: use phys_addr_t in free_memmap()
cyril at ti.com
Thu Jan 31 16:58:22 EST 2013
From: Vitaly Andrianov <vitalya at ti.com>
The free_memmap() was mistakenly using unsigned long type to represent
physical addresses. This breaks on PAE systems where memory could be placed
above the 32-bit addressible limit.
This patch fixes this function to properly use phys_addr_t instead.
Signed-off-by: Vitaly Andrianov <vitalya at ti.com>
Signed-off-by: Cyril Chemparathy <cyril at ti.com>
Acked-by: Nicolas Pitre <nico at linaro.org>
arch/arm/mm/init.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index ad722f1..1c5151a 100644
@@ -457,7 +457,7 @@ static inline void
free_memmap(unsigned long start_pfn, unsigned long end_pfn)
struct page *start_pg, *end_pg;
- unsigned long pg, pgend;
+ phys_addr_t pg, pgend;
* Convert start_pfn/end_pfn to a struct page pointer.
@@ -469,8 +469,8 @@ free_memmap(unsigned long start_pfn, unsigned long end_pfn)
* Convert to physical addresses, and
* round start upwards and end downwards.
- pg = (unsigned long)PAGE_ALIGN(__pa(start_pg));
- pgend = (unsigned long)__pa(end_pg) & PAGE_MASK;
+ pg = PAGE_ALIGN(__pa(start_pg));
+ pgend = __pa(end_pg) & PAGE_MASK;
* If there are free pages between these,
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