linux-kernel - [PATCH 1/7] mm/memblock: memblock_is_map/region

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Date:   Thu, 14 Dec 2017 10:50:16 -0500
From:   Yaowei Bai <baiyaowei@...s.chinamobile.com>
To:     akpm@...ux-foundation.org, rdunlap@...radead.org,
        rientjes@...gle.com, joe@...ches.com
Cc:     linux-kernel@...r.kernel.org, baiyaowei@...s.chinamobile.com
Subject: [PATCH 1/7] mm/memblock: memblock_is_map/region_memory can be boolean

This patch makes 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.

Signed-off-by: Yaowei Bai <baiyaowei@...s.chinamobile.com>
---
 include/linux/memblock.h | 4 ++--
 mm/memblock.c            | 6 +++---
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index 7ed0f77..8be5077 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -332,8 +332,8 @@ phys_addr_t __memblock_alloc_base(phys_addr_t size, phys_addr_t align,
 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 46aacdf..5a9ca2a 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;
 }
-- 
1.8.3.1