[RFC PATCH 1/6] mm/memory_hotplug: remove redundant memory block size alignment check
Jia He
justin.he at arm.com
Tue Jul 28 23:34:19 EDT 2020
The alignment check has been done by check_hotplug_memory_range(). Hence
the redundant one in create_memory_block_devices() can be removed.
The similar redundant check is removed in remove_memory_block_devices().
Signed-off-by: Jia He <justin.he at arm.com>
---
drivers/base/memory.c | 8 --------
1 file changed, 8 deletions(-)
diff --git a/drivers/base/memory.c b/drivers/base/memory.c
index 2b09b68b9f78..4a1691664c6c 100644
--- a/drivers/base/memory.c
+++ b/drivers/base/memory.c
@@ -642,10 +642,6 @@ int create_memory_block_devices(unsigned long start, unsigned long size)
unsigned long block_id;
int ret = 0;
- if (WARN_ON_ONCE(!IS_ALIGNED(start, memory_block_size_bytes()) ||
- !IS_ALIGNED(size, memory_block_size_bytes())))
- return -EINVAL;
-
for (block_id = start_block_id; block_id != end_block_id; block_id++) {
ret = init_memory_block(&mem, block_id, MEM_OFFLINE);
if (ret)
@@ -678,10 +674,6 @@ void remove_memory_block_devices(unsigned long start, unsigned long size)
struct memory_block *mem;
unsigned long block_id;
- if (WARN_ON_ONCE(!IS_ALIGNED(start, memory_block_size_bytes()) ||
- !IS_ALIGNED(size, memory_block_size_bytes())))
- return;
-
for (block_id = start_block_id; block_id != end_block_id; block_id++) {
mem = find_memory_block_by_id(block_id);
if (WARN_ON_ONCE(!mem))
--
2.17.1
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