From: Scott Wood Date: Thu, 27 Jan 2011 10:31:38 +0000 (+0000) Subject: powerpc: Fix pfn_valid() when memory starts at a non-zero address X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=81c386cc7f4c22b81ba94709d2d58754282ea05e;p=deliverable%2Flinux.git 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 Signed-off-by: Benjamin Herrenschmidt --- diff --git a/arch/powerpc/include/asm/page.h b/arch/powerpc/include/asm/page.h index 53b64be40eb2..da4b20008541 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)