diff options
| author |   David S. Miller <davem@sunset.davemloft.net> | 2007-07-16 17:05:11 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-07-16 17:12:00 -0700 |
| commit | f798634d806615bee27d1b83479034087a02aa0f (patch) | |
| tree | 74af3b0a5469886f69dbd13b0a70cc0ca4318227 /drivers/serial/sunhv.c | |
| parent | [SPARC64]: Fix race between MD update and dr-cpu add. (diff) | |
| download | linux-dev-f798634d806615bee27d1b83479034087a02aa0f.tar.xz linux-dev-f798634d806615bee27d1b83479034087a02aa0f.zip | |
[SERIAL] SUNHV: Fix jerky console on LDOM guests.
Mixing putchar() and write() hvcalls does not work %100
correctly. But we should be using write() all the time
if we can, even from ->start_tx(), anyways.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/serial/sunhv.c')
| -rw-r--r-- | drivers/serial/sunhv.c | 12 |
1 files changed, 1 insertions, 11 deletions
diff --git a/drivers/serial/sunhv.c b/drivers/serial/sunhv.c index 17bcca53d6a1..d82be42ff29a 100644 --- a/drivers/serial/sunhv.c +++ b/drivers/serial/sunhv.c @@ -258,17 +258,7 @@ static void sunhv_stop_tx(struct uart_port *port) /* port->lock held by caller. */ static void sunhv_start_tx(struct uart_port *port) { - struct circ_buf *xmit = &port->info->xmit; - - while (!uart_circ_empty(xmit)) { - long status = sun4v_con_putchar(xmit->buf[xmit->tail]); - - if (status != HV_EOK) - break; - - xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1); - port->icount.tx++; - } + transmit_chars(port); } /* port->lock is not held. */ |