kfifo_out_linear
count = kfifo_out_linear(&tport->xmit_fifo, &tail,
tx_len = kfifo_out_linear(&tport->xmit_fifo, &tail,
dma_count = pio_count = kfifo_out_linear(&tport->xmit_fifo, NULL,
bytes = kfifo_out_linear(&tport->xmit_fifo, &tail, UART_XMIT_SIZE);
count = kfifo_out_linear(&tport->xmit_fifo, &tail, UART_XMIT_SIZE);
count = kfifo_out_linear(&tport->xmit_fifo, &tail, UART_XMIT_SIZE);
WARN_ON_ONCE(kfifo_out_linear(&tport->xmit_fifo, &tail,
s->tx_dma_len = kfifo_out_linear(&tport->xmit_fifo, &tail,
unsigned int ___n = kfifo_out_linear(___tmp, &___tail, (n)); \