UART_FIFO_VALID_MASK 567 drivers/tty/serial/bcm63xx_uart.c port->read_status_mask = UART_FIFO_VALID_MASK; UART_FIFO_VALID_MASK 581 drivers/tty/serial/bcm63xx_uart.c port->ignore_status_mask |= UART_FIFO_VALID_MASK;