From: Stephane Grosjean s.grosjean@peak-system.com
commit b17233d385d0b6b43ecf81d43008cb1bbb008166 upstream.
Rather than just indicating that transmission can start, this patch requires the explicit flushing of the network TX queue when the driver is informed by the device that it can transmit, next to its configuration.
In this way, if frames have already been written by the application, they will actually be transmitted.
Fixes: ffd137f7043c ("can: peak/pcie_fd: remove useless code when interface starts") Link: https://lore.kernel.org/r/20210623142600.149904-1-s.grosjean@peak-system.com Cc: linux-stable stable@vger.kernel.org Signed-off-by: Stephane Grosjean s.grosjean@peak-system.com Signed-off-by: Marc Kleine-Budde mkl@pengutronix.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/net/can/peak_canfd/peak_canfd.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/net/can/peak_canfd/peak_canfd.c +++ b/drivers/net/can/peak_canfd/peak_canfd.c @@ -338,8 +338,8 @@ static int pucan_handle_status(struct pe return err; }
- /* start network queue (echo_skb array is empty) */ - netif_start_queue(ndev); + /* wake network queue up (echo_skb array is empty) */ + netif_wake_queue(ndev);
return 0; }