Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-26 06:02:05 +00:00
Code Issues Packages Projects Releases Wiki Activity

serial: cpm_uart: Use uart_circ_empty()

Browse Source 
Use uart_circ_empty() instead of open coding it.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20230320135009.47170-2-ilpo.jarvinen@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ilpo Järvinen 2023-03-20 15:50:09 +02:00 committed by Greg Kroah-Hartman
parent b7313f1d65
commit cd74c5e355
1 changed files with 2 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/tty/serial/cpm_uart/cpm_uart_core.c
View File

@ -678,15 +678,14 @@ static int cpm_uart_tx_pump(struct uart_port *port)
/* Pick next descriptor and fill from buffer */
bdp = pinfo->tx_cur;
while (!(in_be16(&bdp->cbd_sc) & BD_SC_READY) &&
xmit->tail != xmit->head) {
while (!(in_be16(&bdp->cbd_sc) & BD_SC_READY) && !uart_circ_empty(xmit)) {
count = 0;
p = cpm2cpu_addr(in_be32(&bdp->cbd_bufaddr), pinfo);
while (count < pinfo->tx_fifosize) {
*p++ = xmit->buf[xmit->tail];
uart_xmit_advance(port, 1);
count++;
if (xmit->head == xmit->tail)
if (uart_circ_empty(xmit))
break;
}
out_be16(&bdp->cbd_datlen, count);