+ if (mmc_can_erase(card)) {
+ queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, mq->queue);
+ mq->queue->limits.max_discard_sectors = UINT_MAX;
+ if (card->erased_byte == 0)
+ mq->queue->limits.discard_zeroes_data = 1;
+ if (!mmc_can_trim(card) && is_power_of_2(card->erase_size)) {
+ mq->queue->limits.discard_granularity =
+ card->erase_size << 9;
+ mq->queue->limits.discard_alignment =
+ card->erase_size << 9;
+ }
+ if (mmc_can_secure_erase_trim(card))
+ queue_flag_set_unlocked(QUEUE_FLAG_SECDISCARD,
+ mq->queue);
+ }