* [PATCH] powerpc: fix pfn_valid() when memory starts at a non-zero address
@ 2011-01-27 20:31 Scott Wood
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From: Scott Wood @ 2011-01-27 20:31 UTC (permalink / raw)
To: benh; +Cc: linuxppc-dev
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>
---
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 53b64be..da4b200 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)
--
1.7.0.4
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2011-01-27 20:31 [PATCH] powerpc: fix pfn_valid() when memory starts at a non-zero address Scott Wood
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