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[122/262] mm/memory_failure: constify static mm_walk_ops

Message ID 20211105204101.8OnxznkNy%akpm@linux-foundation.org (mailing list archive)
State New
Headers show
Series [001/262] scripts/spelling.txt: add more spellings to spelling.txt | expand

Commit Message

Andrew Morton Nov. 5, 2021, 8:41 p.m. UTC 
From: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Subject: mm/memory_failure: constify static mm_walk_ops

The only usage of hwp_walk_ops is to pass its address to walk_page_range()
which takes a pointer to const mm_walk_ops as argument.  Make it const to
allow the compiler to put it in read-only memory.

Link: https://lkml.kernel.org/r/20211014075042.17174-3-rikard.falkeborn@gmail.com
Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Acked-by: Naoya Horiguchi <naoya.horiguchi@nec.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/memory-failure.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

--- a/mm/memory-failure.c~mm-memory_failure-constify-static-mm_walk_ops
+++ a/mm/memory-failure.c
@@ -674,7 +674,7 @@  static int hwpoison_hugetlb_range(pte_t
 #define hwpoison_hugetlb_range	NULL
 #endif
 
-static struct mm_walk_ops hwp_walk_ops = {
+static const struct mm_walk_ops hwp_walk_ops = {
 	.pmd_entry = hwpoison_pte_range,
 	.hugetlb_entry = hwpoison_hugetlb_range,
 };