Messages in this thread Patch in this message | | | From | Cyril Chemparathy <> | Subject | [PATCH v4 03/13] ARM: LPAE: use phys_addr_t in free_memmap() | Date | Thu, 31 Jan 2013 16:58:22 -0500 |
| |
From: Vitaly Andrianov <vitalya@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@ti.com> Signed-off-by: Cyril Chemparathy <cyril@ti.com> Acked-by: Nicolas Pitre <nico@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 --- a/arch/arm/mm/init.c +++ b/arch/arm/mm/init.c @@ -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, -- 1.7.9.5
| |