diff --git a/include/linux/damon.h b/include/linux/damon.h
index c5dc0c77c7722012515b307ed6701912dcafc7ea..1dda8d0068e54a412422a3de08250ae004087a6d 100644
--- a/include/linux/damon.h
+++ b/include/linux/damon.h
@@ -346,7 +346,7 @@ struct damon_operations {
 	unsigned long (*apply_scheme)(struct damon_ctx *context,
 			struct damon_target *t, struct damon_region *r,
 			struct damos *scheme);
-	bool (*target_valid)(void *target);
+	bool (*target_valid)(struct damon_target *t);
 	void (*cleanup)(struct damon_ctx *context);
 };
 
diff --git a/mm/damon/vaddr.c b/mm/damon/vaddr.c
index 3f84584f998263039a724446a112bbe7caa8bd67..f53c2ff2bcc8acec5f42a3dd47ff58a676c0f2e5 100644
--- a/mm/damon/vaddr.c
+++ b/mm/damon/vaddr.c
@@ -593,9 +593,8 @@ static unsigned int damon_va_check_accesses(struct damon_ctx *ctx)
  * Functions for the target validity check and cleanup
  */
 
-static bool damon_va_target_valid(void *target)
+static bool damon_va_target_valid(struct damon_target *t)
 {
-	struct damon_target *t = target;
 	struct task_struct *task;
 
 	task = damon_get_task_struct(t);