[SERIAL] SUNHV: Fix jerky console on LDOM guests.
Mixing putchar() and write() hvcalls does not work %100 correctly. But we should be using write() all the time if we can, even from ->start_tx(), anyways. Signed-off-by: David S. Miller <davem@davemloft.net>
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1 changed files with 1 additions and 11 deletions
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@ -258,17 +258,7 @@ static void sunhv_stop_tx(struct uart_port *port)
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/* port->lock held by caller. */
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static void sunhv_start_tx(struct uart_port *port)
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{
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struct circ_buf *xmit = &port->info->xmit;
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while (!uart_circ_empty(xmit)) {
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long status = sun4v_con_putchar(xmit->buf[xmit->tail]);
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if (status != HV_EOK)
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break;
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xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
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port->icount.tx++;
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}
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transmit_chars(port);
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}
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/* port->lock is not held. */
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