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serial: arc: Use uart_xmit_advance() 

Take advantage of the new uart_xmit_advance() helper.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20221019091151.6692-11-ilpo.jarvinen@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ilpo Järvinen 2022-10-19 12:11:17 +03:00 committed by Greg Kroah-Hartman
parent d29d947c14
commit 8a8dee2cdb
1 changed files with 1 additions and 2 deletions
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3
drivers/tty/serial/arc_uart.c
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@ -166,8 +166,7 @@ static void arc_serial_tx_chars(struct uart_port *port)
sent = 1; sent = 1;
} else if (!uart_circ_empty(xmit)) { } else if (!uart_circ_empty(xmit)) {
ch = xmit->buf[xmit->tail]; ch = xmit->buf[xmit->tail];
xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1); uart_xmit_advance(port, 1);
port->icount.tx++;
while (!(UART_GET_STATUS(port) & TXEMPTY)) while (!(UART_GET_STATUS(port) & TXEMPTY))
cpu_relax(); cpu_relax();
UART_SET_DATA(port, ch); UART_SET_DATA(port, ch);