mm/memblock: memblock_is_map/region_memory can be boolean

Make memblock_is_map/region_memory return bool due to these two
functions only using either true or false as its return value.

No functional change.

Link: http://lkml.kernel.org/r/1513266622-15860-2-git-send-email-baiyaowei@cmss.chinamobile.com
Signed-off-by: Yaowei Bai <baiyaowei@cmss.chinamobile.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2 files changed, 5 insertions, 5 deletions

diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index 7ed0f7782d16..8be5077efb5f 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -332,8 +332,8 @@ void memblock_enforce_memory_limit(phys_addr_t memory_limit);
 void memblock_cap_memory_range(phys_addr_t base, phys_addr_t size);
 void memblock_mem_limit_remove_map(phys_addr_t limit);
 bool memblock_is_memory(phys_addr_t addr);
-int memblock_is_map_memory(phys_addr_t addr);
-int memblock_is_region_memory(phys_addr_t base, phys_addr_t size);
+bool memblock_is_map_memory(phys_addr_t addr);
+bool memblock_is_region_memory(phys_addr_t base, phys_addr_t size);
 bool memblock_is_reserved(phys_addr_t addr);
 bool memblock_is_region_reserved(phys_addr_t base, phys_addr_t size);
 
diff --git a/mm/memblock.c b/mm/memblock.c
index 46aacdfa4f4d..5a9ca2a1751b 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -1654,7 +1654,7 @@ bool __init_memblock memblock_is_memory(phys_addr_t addr)
         return memblock_search(&memblock.memory, addr) != -1;
 }
 
-int __init_memblock memblock_is_map_memory(phys_addr_t addr)
+bool __init_memblock memblock_is_map_memory(phys_addr_t addr)
 {
         int i = memblock_search(&memblock.memory, addr);
 
@@ -1690,13 +1690,13 @@ int __init_memblock memblock_search_pfn_nid(unsigned long pfn,
  * RETURNS:
  * 0 if false, non-zero if true
  */
-int __init_memblock memblock_is_region_memory(phys_addr_t base, phys_addr_t size)
+bool __init_memblock memblock_is_region_memory(phys_addr_t base, phys_addr_t size)
 {
         int idx = memblock_search(&memblock.memory, base);
         phys_addr_t end = base + memblock_cap_size(base, &size);
 
         if (idx == -1)
-                return 0;
+                return false;
         return (memblock.memory.regions[idx].base +
                  memblock.memory.regions[idx].size) >= end;
 }