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authorYaowei Bai <baiyaowei@cmss.chinamobile.com>2018-02-06 15:41:18 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2018-02-06 18:32:47 -0800
commit937f0c2675a1ad6f94e0768dbb5379954d9953ab (patch)
tree772a7d9968eaec912f9d593203e8ed999b62dbbc
parent22ad305741bc367abb2180986c99effaa1e41787 (diff)
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>
-rw-r--r--include/linux/memblock.h4
-rw-r--r--mm/memblock.c6
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;
}