1 files changed, 0 insertions, 19 deletions

diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index 5cd665c91ead..958275aca008 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -1449,22 +1449,6 @@ static bool dm_table_supports_flush(struct dm_table *t, unsigned long flush)
         return false;
 }
 
-static bool dm_table_discard_zeroes_data(struct dm_table *t)
-{
-        struct dm_target *ti;
-        unsigned i = 0;
-
-        /* Ensure that all targets supports discard_zeroes_data. */
-        while (i < dm_table_get_num_targets(t)) {
-                ti = dm_table_get_target(t, i++);
-
-                if (ti->discard_zeroes_data_unsupported)
-                        return false;
-        }
-
-        return true;
-}
-
 static int device_is_nonrot(struct dm_target *ti, struct dm_dev *dev,
                             sector_t start, sector_t len, void *data)
 {
@@ -1620,9 +1604,6 @@ void dm_table_set_restrictions(struct dm_table *t, struct request_queue *q,
         }
         blk_queue_write_cache(q, wc, fua);
 
-        if (!dm_table_discard_zeroes_data(t))
-                q->limits.discard_zeroes_data = 0;
-
         /* Ensure that all underlying devices are non-rotational. */
         if (dm_table_all_devices_attribute(t, device_is_nonrot))
                 queue_flag_set_unlocked(QUEUE_FLAG_NONROT, q);