1) take uart_tx_stopped into account every loop (the same as other uart
drivers)
2) no need for 'count' variable, operate on 'size' directly
This allows inlining this into handle_tx() nicely in the next patch.
Signed-off-by: Jiri Slaby <jslaby@xxxxxxx>
---
drivers/tty/serial/pch_uart.c | 12 +++++-------
1 file changed, 5 insertions(+), 7 deletions(-)
diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c
index ae1d6b641253..e1eadf519089 100644
--- a/drivers/tty/serial/pch_uart.c
+++ b/drivers/tty/serial/pch_uart.c
@@ -759,21 +759,19 @@ static void pch_dma_tx_complete(void *arg)
static bool pop_tx(struct eg20t_port *priv, unsigned int size)
{
- unsigned int count = 0;
struct uart_port *port = &priv->port;
struct circ_buf *xmit = &port->state->xmit;
+ bool ret = false;
- if (uart_tx_stopped(port))
- return false;
-
- while (!uart_circ_empty(xmit) && count < size) {
+ while (!uart_tx_stopped(port) && !uart_circ_empty(xmit) && size) {
iowrite8(xmit->buf[xmit->tail], priv->membase + PCH_UART_THR);
xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
port->icount.tx++;
- count++;
+ size--;
+ ret = true;
}
- return count;
+ return ret;
}
static int handle_rx_to(struct eg20t_port *priv)
--
2.36.0
