[POWERPC] Fix sparse warnings in arch/powerpc/mm

Make two vmemmap helpers static in init_64.c
Make stab variables static in stab.c
Make psize defs static in hash_utils_64.c
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>

arch/powerpc/mm/hash_utils_64.c

@@ -117,7 +117,7 @@ static DEFINE_SPINLOCK(linear_map_hash_lock);
 
 /* Pre-POWER4 CPUs (4k pages only)
  */
-struct mmu_psize_def mmu_psize_defaults_old[] = {
+static struct mmu_psize_def mmu_psize_defaults_old[] = {
 	[MMU_PAGE_4K] = {
 		.shift	= 12,
 		.sllp	= 0,
@@ -131,7 +131,7 @@ struct mmu_psize_def mmu_psize_defaults_old[] = {
  *
  * Support for 16Mb large pages
  */
-struct mmu_psize_def mmu_psize_defaults_gp[] = {
+static struct mmu_psize_def mmu_psize_defaults_gp[] = {
 	[MMU_PAGE_4K] = {
 		.shift	= 12,
 		.sllp	= 0,

arch/powerpc/mm/init_64.c

@@ -183,7 +183,7 @@ void pgtable_cache_init(void)
  * do this by hand as the proffered address may not be correctly aligned.
  * Subtraction of non-aligned pointers produces undefined results.
  */
-unsigned long __meminit vmemmap_section_start(unsigned long page)
+static unsigned long __meminit vmemmap_section_start(unsigned long page)
 {
 	unsigned long offset = page - ((unsigned long)(vmemmap));
 
@@ -196,7 +196,7 @@ unsigned long __meminit vmemmap_section_start(unsigned long page)
  * which overlaps this vmemmap page is initialised then this page is
  * initialised already.
  */
-int __meminit vmemmap_populated(unsigned long start, int page_size)
+static int __meminit vmemmap_populated(unsigned long start, int page_size)
 {
 	unsigned long end = start + page_size;
 

arch/powerpc/mm/stab.c

@@ -30,8 +30,8 @@ struct stab_entry {
 };
 
 #define NR_STAB_CACHE_ENTRIES 8
-DEFINE_PER_CPU(long, stab_cache_ptr);
-DEFINE_PER_CPU(long, stab_cache[NR_STAB_CACHE_ENTRIES]);
+static DEFINE_PER_CPU(long, stab_cache_ptr);
+static DEFINE_PER_CPU(long, stab_cache[NR_STAB_CACHE_ENTRIES]);
 
 /*
  * Create a segment table entry for the given esid/vsid pair.