[PATCH] sparc64 pmd_offset() fix

mm/memory.c: In function `zeromap_pud_range':
mm/memory.c:1053: warning: suggest parentheses around + or - inside shift
mm/memory.c: In function `remap_pud_range':
mm/memory.c:1170: warning: suggest parentheses around + or - inside shift

Parenthesize this macro arg.

Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

include/asm-sparc64/pgtable.h

@@ -315,7 +315,7 @@ static inline pte_t pte_modify(pte_t orig_pte, pgprot_t new_prot)
 /* Find an entry in the second-level page table.. */
 #define pmd_offset(dir, address)	\
 	((pmd_t *) pgd_page(*(dir)) + \
-	 ((address >> PMD_SHIFT) & (REAL_PTRS_PER_PMD-1)))
+	 (((address) >> PMD_SHIFT) & (REAL_PTRS_PER_PMD-1)))
 
 /* Find an entry in the third-level page table.. */
 #define pte_index(dir, address)	\