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Subject[PATCH 34/44] serial: stm32: Use uart_xmit_advance()
Date
Take advantage of the new uart_xmit_advance() helper.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
---
drivers/tty/serial/stm32-usart.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/tty/serial/stm32-usart.c b/drivers/tty/serial/stm32-usart.c
index dfdbcf092fac..24def72b2565 100644
--- a/drivers/tty/serial/stm32-usart.c
+++ b/drivers/tty/serial/stm32-usart.c
@@ -596,8 +596,7 @@ static void stm32_usart_transmit_chars_pio(struct uart_port *port)
if (!(readl_relaxed(port->membase + ofs->isr) & USART_SR_TXE))
break;
writel_relaxed(xmit->buf[xmit->tail], port->membase + ofs->tdr);
- xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
- port->icount.tx++;
+ uart_xmit_advance(port, 1);
}

/* rely on TXE irq (mask or unmask) for sending remaining data */
@@ -673,8 +672,8 @@ static void stm32_usart_transmit_chars_dma(struct uart_port *port)

stm32_usart_set_bits(port, ofs->cr3, USART_CR3_DMAT);

- xmit->tail = (xmit->tail + count) & (UART_XMIT_SIZE - 1);
- port->icount.tx += count;
+ uart_xmit_advance(port, count);
+
return;

fallback_err:
--
2.30.2
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