[RFC v2][PATCH 31/35] mn10300: use pte_offset_kernel() as base for pte_offset_map*()

Dave Hansen
2009-05-20T18:25:34Z

Some architectures use pte_offset_map() as a basis for
pte_offset_kernel(). Others do the inverse.

Although arbitrary, Using pte_offset_kernel() as the base
seems a wee bit more popular and it also fits in well
with the way I'm breaking out the headers.

Instead of coding the same implementation twice, this
makes pte_offset_map{,_nested}() call pte_offset_kernel()
directly.

Signed-off-by: Dave Hansen <dave@linux.vnet.ibm.com>
---

linux-2.6.git-dave/arch/mn10300/include/asm/ptemap.h | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)

diff -puN arch/mn10300/include/asm/ptemap.h~mn10300-pte_offset_kernel arch/mn10300/include/asm/ptemap.h
--- linux-2.6.git/arch/mn10300/include/asm/ptemap.h~mn10300-pte_offset_kernel 2009-04-30 15:11:11.000000000 -0700
+++ linux-2.6.git-dave/arch/mn10300/include/asm/ptemap.h 2009-04-30 15:11:11.000000000 -0700
@@ -1,9 +1,8 @@
#ifndef _MN10300_ASM_PTEMAP_H
#define _MN10300_ASM_PTEMAP_H

-#define pte_offset_map(dir, address) \
- ((pte_t *) page_address(pmd_page(*(dir))) + pte_index(address))
-#define pte_offset_map_nested(dir, address) pte_offset_map(dir, address)
+#define pte_offset_map(dir, address) pte_offset_kernel(dir, address)
+#define pte_offset_map_nested(dir, address) pte_offset_kernel(dir, address)
#define pte_unmap(pte) do {} while (0)
#define pte_unmap_nested(pte) do {} while (0)

_