IDC_STALL_NEEDED
if (ha->flags & IDC_STALL_NEEDED) {
ha->flags &= ~IDC_STALL_NEEDED;
ha->flags &= ~(IDC_RESTART_NEEDED | IDC_STALL_NEEDED |
while (ha->flags & (IDC_STALL_NEEDED | IDC_RESTART_NEEDED |
ha->flags |= IDC_STALL_NEEDED;