Commit 36aea60f authored by Jimmy Assarsson's avatar Jimmy Assarsson Committed by Marc Kleine-Budde
Browse files

can: kvaser_pciefd: kvaser_pciefd_rx_error_frame(): increase correct stats->{rx,tx}_errors counter 

Check the direction bit in the error frame packet (EPACK) to determine
which net_device_stats {rx,tx}_errors counter to increase.

Fixes: 26ad340e ("can: kvaser_pciefd: Add driver for Kvaser PCIEcan devices")
Link: https://lore.kernel.org/all/20211208152122.250852-1-extja@kvaser.com


Cc: stable@vger.kernel.org
Signed-off-by: default avatarJimmy Assarsson <extja@kvaser.com>
Signed-off-by: default avatarMarc Kleine-Budde <mkl@pengutronix.de>
parent a50e659b

drivers/net/can/kvaser_pciefd.c

+7 −1
Original line number Diff line number Diff line
@@ -248,6 +248,9 @@ MODULE_DESCRIPTION("CAN driver for Kvaser CAN/PCIe devices"); 
#define KVASER_PCIEFD_SPACK_EWLR BIT(23)

#define KVASER_PCIEFD_SPACK_EPLR BIT(24)



/* Kvaser KCAN_EPACK second word */

#define KVASER_PCIEFD_EPACK_DIR_TX BIT(0)



struct kvaser_pciefd;



struct kvaser_pciefd_can {
@@ -1285,6 +1288,9 @@ static int kvaser_pciefd_rx_error_frame(struct kvaser_pciefd_can *can, 


	can->err_rep_cnt++;

	can->can.can_stats.bus_error++;

	if (p->header[1] & KVASER_PCIEFD_EPACK_DIR_TX)

		stats->tx_errors++;

	else

		stats->rx_errors++;



	can->bec.txerr = bec.txerr;