[SPARC64]: Fix zero-extension issues wrt. {pgd,pmd}_val().

arch/sparc64/kernel/process.c

@@ -435,7 +435,7 @@ void flush_thread(void)
 					page = pmd_alloc_one(NULL, 0);
 				pgd_set(pgd0, page);
 			}
-			pgd_cache = pgd_val(*pgd0) << 11UL;
+			pgd_cache = ((unsigned long) pgd_val(*pgd0)) << 11UL;
 		}
 		__asm__ __volatile__("stxa %0, [%1] %2\n\t"
 				     "membar #Sync"

arch/sparc64/mm/init.c

@@ -1523,8 +1523,10 @@ void __init paging_init(void)
 	/* Now can init the kernel/bad page tables. */
 	pgd_set(&swapper_pg_dir[0], swapper_pmd_dir + (shift / sizeof(pgd_t)));
 	
-	sparc64_vpte_patchme1[0] |= (pgd_val(init_mm.pgd[0]) >> 10);
-	sparc64_vpte_patchme2[0] |= (pgd_val(init_mm.pgd[0]) & 0x3ff);
+	sparc64_vpte_patchme1[0] |=
+		(((unsigned long)pgd_val(init_mm.pgd[0])) >> 10);
+	sparc64_vpte_patchme2[0] |=
+		(((unsigned long)pgd_val(init_mm.pgd[0])) & 0x3ff);
 	flushi((long)&sparc64_vpte_patchme1[0]);
 	
 	/* Setup bootmem... */

include/asm-sparc64/mmu_context.h

@@ -83,7 +83,8 @@ do { \
 	paddr = __pa((__mm)->pgd); \
 	pgd_cache = 0UL; \
 	if ((__tsk)->thread_info->flags & _TIF_32BIT) \
-		pgd_cache = pgd_val((__mm)->pgd[0]) << 11UL; \
+		pgd_cache = \
+		  ((unsigned long)pgd_val((__mm)->pgd[0])) << 11UL; \
 	__asm__ __volatile__("wrpr	%%g0, 0x494, %%pstate\n\t" \
 			     "mov	%3, %%g4\n\t" \
 			     "mov	%0, %%g7\n\t" \

include/asm-sparc64/pgtable.h

@@ -234,20 +234,22 @@ static inline pte_t pte_modify(pte_t orig_pte, pgprot_t new_prot)
 	(pmd_val(*(pmdp)) = (__pa((unsigned long) (ptep)) >> 11UL))
 #define pgd_set(pgdp, pmdp)	\
 	(pgd_val(*(pgdp)) = (__pa((unsigned long) (pmdp)) >> 11UL))
-#define __pmd_page(pmd)			((unsigned long) __va((pmd_val(pmd)<<11UL)))
+#define __pmd_page(pmd)		\
+	((unsigned long) __va((((unsigned long)pmd_val(pmd))<<11UL)))
 #define pmd_page(pmd) 			virt_to_page((void *)__pmd_page(pmd))
-#define pgd_page(pgd)			((unsigned long) __va((pgd_val(pgd)<<11UL)))
+#define pgd_page(pgd)		\
+	((unsigned long) __va((((unsigned long)pgd_val(pgd))<<11UL)))
 #define pte_none(pte) 			(!pte_val(pte))
 #define pte_present(pte)		(pte_val(pte) & _PAGE_PRESENT)
 #define pte_clear(pte)			(pte_val(*(pte)) = 0UL)
 #define pmd_none(pmd)			(!pmd_val(pmd))
 #define pmd_bad(pmd)			(0)
-#define pmd_present(pmd)		(pmd_val(pmd) != 0UL)
-#define pmd_clear(pmdp)			(pmd_val(*(pmdp)) = 0UL)
+#define pmd_present(pmd)		(pmd_val(pmd) != 0U)
+#define pmd_clear(pmdp)			(pmd_val(*(pmdp)) = 0U)
 #define pgd_none(pgd)			(!pgd_val(pgd))
 #define pgd_bad(pgd)			(0)
-#define pgd_present(pgd)		(pgd_val(pgd) != 0UL)
-#define pgd_clear(pgdp)			(pgd_val(*(pgdp)) = 0UL)
+#define pgd_present(pgd)		(pgd_val(pgd) != 0U)
+#define pgd_clear(pgdp)			(pgd_val(*(pgdp)) = 0U)
 
 /* The following only work if pte_present() is true.
  * Undefined behaviour if not..