db_drop_task
struct work_struct db_drop_task;
db_drop_task);
INIT_WORK(&adapter->db_drop_task, db_drop_task);
queue_work(cxgb3_wq, &adapter->db_drop_task);
struct work_struct db_drop_task;
adap = container_of(work, struct adapter, db_drop_task);
queue_work(adap->workq, &adap->db_drop_task);
cancel_work_sync(&adapter->db_drop_task);
INIT_WORK(&adapter->db_drop_task, process_db_drop);