[PATCH][trivial][2/2] cris: add constfy to pgd_offset()

[KOSAKI Motohiro]

add constfy to pgd_offset() for avoid following warnings.
 
  CC      mm/pagewalk.o
mm/pagewalk.c: In function 'walk_page_range':
mm/pagewalk.c:111: warning: passing argument 1 of 'pgd_offset' discards qualifiers from p\
ointer target type

Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>
CC: Matt Mackall <mpm@xxxxxxxxxxx>
CC: "Vegard Nossum" <vegard.nossum@xxxxxxxxx>
CC: Mikael Starvik <starvik@xxxxxxxx>
CC: Jesper Nilsson <jesper.nilsson@xxxxxxxx>

---
 include/asm-cris/pgtable.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: b/include/asm-cris/pgtable.h
===================================================================
--- a/include/asm-cris/pgtable.h        2008-04-19 19:25:50.000000000 +0900
+++ b/include/asm-cris/pgtable.h        2008-04-19 19:27:31.000000000 +0900
@@ -229,7 +229,7 @@ static inline void pmd_set(pmd_t * pmdp,
 #define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD-1))

 /* to find an entry in a page-table-directory */
-static inline pgd_t * pgd_offset(struct mm_struct * mm, unsigned long address)
+static inline pgd_t * pgd_offset(const struct mm_struct * mm, unsigned long address)
 {
        return mm->pgd + pgd_index(address);
 }



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