[PATCH 1/2] serial: ucc_uart: Use uart_circ_empty()
From: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Date: 2023-03-20 13:50:56
Also in:
linux-serial, lkml
Subsystem:
freescale quicc engine ucc uart driver, the rest, tty layer and serial drivers · Maintainers:
Timur Tabi, Linus Torvalds, Greg Kroah-Hartman, Jiri Slaby
Use uart_circ_empty() rather than open coding it. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> --- drivers/tty/serial/ucc_uart.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/tty/serial/ucc_uart.c b/drivers/tty/serial/ucc_uart.c
index 32c7a5b43f8e..e6bd1256a4e7 100644
--- a/drivers/tty/serial/ucc_uart.c
+++ b/drivers/tty/serial/ucc_uart.c@@ -366,15 +366,14 @@ static int qe_uart_tx_pump(struct uart_qe_port *qe_port) /* Pick next descriptor and fill from buffer */ bdp = qe_port->tx_cur; - while (!(ioread16be(&bdp->status) & BD_SC_READY) && - (xmit->tail != xmit->head)) { + while (!(ioread16be(&bdp->status) & BD_SC_READY) && !uart_circ_empty(xmit)) { count = 0; p = qe2cpu_addr(be32_to_cpu(bdp->buf), qe_port); while (count < qe_port->tx_fifosize) { *p++ = xmit->buf[xmit->tail]; uart_xmit_advance(port, 1); count++; - if (xmit->head == xmit->tail) + if (uart_circ_empty(xmit)) break; }
--
2.30.2