[RFC PATCH 4/4] mm/damon/lru_sort: remove unnecessary damon_call() param validation

[SJ Park <sj@kernel.org>]

DAMON_LRU_SORT avoids passing NULL or unstarted damon_ctx to
damon_call() with its own validation.  The validation is no longer
needed, because the DAMON core layer now handles the corner cases
itself.  Remove the unnecessary check.

Signed-off-by: SJ Park <sj@kernel.org>
---
 mm/damon/lru_sort.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/mm/damon/lru_sort.c b/mm/damon/lru_sort.c
index bd847829a9907..f25ee7326e87c 100644
--- a/mm/damon/lru_sort.c
+++ b/mm/damon/lru_sort.c
@@ -346,8 +346,6 @@ static int damon_lru_sort_commit_inputs_fn(void *arg)
 	return damon_lru_sort_apply_parameters();
 }
 
-static bool damon_lru_sort_damon_has_started;
-
 static int damon_lru_sort_commit_inputs_store(const char *val,
 					      const struct kernel_param *kp)
 {
@@ -368,10 +366,6 @@ static int damon_lru_sort_commit_inputs_store(const char *val,
 	if (!commit_inputs_request)
 		return 0;
 
-	/* Skip damon_call() if ctx has not successfully started. */
-	if (!damon_lru_sort_damon_has_started)
-		return -EINVAL;
-
 	err = damon_call(ctx, &control);
 
 	return err ? err : control.return_code;
@@ -422,8 +416,6 @@ static int damon_lru_sort_turn(bool on)
 	err = damon_start(&ctx, 1, true);
 	if (err)
 		return err;
-	if (!damon_lru_sort_damon_has_started)
-		damon_lru_sort_damon_has_started = true;
 	return damon_call(ctx, &call_control);
 }
 
-- 
2.47.3