There is no possibility for memmap to be NULL in the current
codebase.
This check was added in commit 95a4774d055c ("memory-hotplug:
update mce_bad_pages when removing the memory")
where memmap was originally inited to NULL, and only conditionally
given a value.
The code that could have passed a NULL has been removed, so there
is no longer a possibility that memmap can be NULL.
Signed-off-by: Alastair D'Silva <alastair@xxxxxxxxxxx>
---
mm/sparse.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/mm/sparse.c b/mm/sparse.c
index 78979c142b7d..9f7e3682cdcb 100644
--- a/mm/sparse.c
+++ b/mm/sparse.c
@@ -754,9 +754,6 @@ static void clear_hwpoisoned_pages(struct page *memmap, int nr_pages)
{
int i;
- if (!memmap)
- return;
-
/*
* A further optimization is to have per section refcounted
* num_poisoned_pages. But that would need more space per memmap, so
--
2.21.0
