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| author | Scott Wood <scottwood@freescale.com> | 2011-01-27 10:31:38 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2011-02-07 12:47:56 +1100 |
| commit | 81c386cc7f4c22b81ba94709d2d58754282ea05e (patch) | |
| tree | ec6f38c51a46e61480b3e53eb1e6ae01bd25c188 | |
| parent | 8dbdea8444d303a772bceb1ba963f0e3273bfc5e (diff) | |
powerpc: Fix pfn_valid() when memory starts at a non-zero address
max_mapnr is a pfn, not an index innto mem_map[]. So don't add
ARCH_PFN_OFFSET a second time.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| -rw-r--r-- | arch/powerpc/include/asm/page.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/page.h b/arch/powerpc/include/asm/page.h index 53b64be40eb..da4b2000854 100644 --- a/arch/powerpc/include/asm/page.h +++ b/arch/powerpc/include/asm/page.h @@ -101,7 +101,7 @@ extern phys_addr_t kernstart_addr; #ifdef CONFIG_FLATMEM #define ARCH_PFN_OFFSET (MEMORY_START >> PAGE_SHIFT) -#define pfn_valid(pfn) ((pfn) >= ARCH_PFN_OFFSET && (pfn) < (ARCH_PFN_OFFSET + max_mapnr)) +#define pfn_valid(pfn) ((pfn) >= ARCH_PFN_OFFSET && (pfn) < max_mapnr) #endif #define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT) |