aboutsummaryrefslogtreecommitdiff
path: root/arch/powerpc
diff options
context:
space:
mode:
authorScott Wood <scottwood@freescale.com>2011-01-27 10:31:38 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2011-02-07 12:47:56 +1100
commit81c386cc7f4c22b81ba94709d2d58754282ea05e (patch)
treeec6f38c51a46e61480b3e53eb1e6ae01bd25c188 /arch/powerpc
parent8dbdea8444d303a772bceb1ba963f0e3273bfc5e (diff)
downloadlinux-2.6.38-lt-ux500-81c386cc7f4c22b81ba94709d2d58754282ea05e.tar.gz
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>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/include/asm/page.h2
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)