[PATCH] mm/damon/vaddr: provide lvalue to pmd_present()

[SeongJae Park]

On m68k, vaddr.c build fails since pmd_present() requires lvalue while
vaddr.c is passing pmdp_get().  Fix it.

Reported-by: kernel test robot <lkp@xxxxxxxxx>
Closes: https://lore.kernel.org/oe-kbuild-all/202511172257.CjElDcRX-lkp@xxxxxxxxx/
Signed-off-by: SeongJae Park <sj@xxxxxxxxxx>
---
 mm/damon/vaddr.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/mm/damon/vaddr.c b/mm/damon/vaddr.c
index ef57e95eb422..2750c88e7225 100644
--- a/mm/damon/vaddr.c
+++ b/mm/damon/vaddr.c
@@ -311,7 +311,9 @@ static int damon_mkold_pmd_entry(pmd_t *pmd, unsigned long addr,
 
 	ptl = pmd_trans_huge_lock(pmd, walk->vma);
 	if (ptl) {
-		if (pmd_present(pmdp_get(pmd)))
+		pmd_t pmde = pmdp_get(pmd);
+
+		if (pmd_present(pmde))
 			damon_pmdp_mkold(pmd, walk->vma, addr);
 		spin_unlock(ptl);
 		return 0;
-- 
2.47.3