From: Kazuya Mizuguchi <kazuya.mizuguchi.ks@xxxxxxxxxxx>
This patch calls work_fn_rx() directly so that the driver can avoid
executing of next sci_dma_rx_complete() before work_fn_rx() completes.
Signed-off-by: Kazuya Mizuguchi <kazuya.mizuguchi.ks@xxxxxxxxxxx>
Signed-off-by: Yoshihiro Kaneko <ykaneko0929@xxxxxxxxx>
---
This patch is based on the tty-next branch of Greg Kroah-Hartman's tty
tree.
drivers/tty/serial/sh-sci.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index e7d6566..664ae78 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -126,6 +126,9 @@ struct sci_port {
static void sci_start_tx(struct uart_port *port);
static void sci_stop_tx(struct uart_port *port);
static void sci_start_rx(struct uart_port *port);
+#ifdef CONFIG_SERIAL_SH_SCI_DMA
+static void work_fn_rx(struct work_struct *work);
+#endif
#define SCI_NPORTS CONFIG_SERIAL_SH_SCI_NR_UARTS
@@ -1341,7 +1344,7 @@ static void sci_dma_rx_complete(void *arg)
if (count)
tty_flip_buffer_push(&port->state->port);
- schedule_work(&s->work_rx);
+ work_fn_rx(&s->work_rx);
}
static void sci_rx_dma_release(struct sci_port *s, bool enable_pio)
--
1.9.1
--
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