diff options
| author | Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> | 2023-03-20 16:50:09 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-03-29 11:53:57 +0300 |
| commit | cd74c5e35546362fdb410551fe650e7e3fa2208e (patch) | |
| tree | 5dcde3a3a57130a51d680b682c93705609e0c05b /drivers/tty | |
| parent | b7313f1d65d668ad0056ca1d93a9017ebb78aeaf (diff) | |
| download | linux-cd74c5e35546362fdb410551fe650e7e3fa2208e.tar.xz | |
serial: cpm_uart: Use uart_circ_empty()
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>
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/serial/cpm_uart/cpm_uart_core.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/tty/serial/cpm_uart/cpm_uart_core.c b/drivers/tty/serial/cpm_uart/cpm_uart_core.c index 5565f302cb21..349e7da643f0 100644 --- a/drivers/tty/serial/cpm_uart/cpm_uart_core.c +++ b/drivers/tty/serial/cpm_uart/cpm_uart_core.c @@ -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); |