ASYNC_SPD_CUST
if (baud == 38400 && (port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST)
(port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST)
if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST &&
((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) &&
((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST &&
priv->flags |= ASYNC_SPD_CUST;
priv->flags |= ASYNC_SPD_CUST;
#define UPF_SPD_CUST ((__force upf_t) ASYNC_SPD_CUST /* 0x0030 */ )