From: Rikard Falkeborn <rikard.falkeborn@gmail.com> mainline inclusion from mainline-5.16 commit 199b50f4c9485c46c2403d8b3e0eca90ec401ed6 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I4GVMK CVE: NA ------------------------------------------------- The only usage of these structs is to pass their addresses to walk_page_range(), which takes a pointer to const mm_walk_ops as argument. Make them const to allow the compiler to put them in read-only memory. Link: https://lkml.kernel.org/r/20211014075042.17174-2-rikard.falkeborn@gmail.com Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com> Reviewed-by: SeongJae Park <sj@kernel.org> Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> (cherry picked from commit 199b50f4c9485c46c2403d8b3e0eca90ec401ed6) Signed-off-by: Yue Zou <zouyue3@huawei.com> Reviewed-by: Kefeng Wang <wangkefeng.wang@huawei.com> Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com> --- mm/damon/vaddr.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/mm/damon/vaddr.c b/mm/damon/vaddr.c index cdeca92a34dc..14768575f906 100644 --- a/mm/damon/vaddr.c +++ b/mm/damon/vaddr.c @@ -395,7 +395,7 @@ static int damon_mkold_pmd_entry(pmd_t *pmd, unsigned long addr, return 0; } -static struct mm_walk_ops damon_mkold_ops = { +static const struct mm_walk_ops damon_mkold_ops = { .pmd_entry = damon_mkold_pmd_entry, }; @@ -491,7 +491,7 @@ static int damon_young_pmd_entry(pmd_t *pmd, unsigned long addr, return 0; } -static struct mm_walk_ops damon_young_ops = { +static const struct mm_walk_ops damon_young_ops = { .pmd_entry = damon_young_pmd_entry, }; -- 2.20.1