From: Jimmy Assarsson extja@kvaser.com
commit 36aea60fc892ce73f96d45dc7eb239c7c4c1fa69 upstream.
Check the direction bit in the error frame packet (EPACK) to determine which net_device_stats {rx,tx}_errors counter to increase.
Fixes: 26ad340e582d ("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: Jimmy Assarsson extja@kvaser.com Signed-off-by: Marc Kleine-Budde mkl@pengutronix.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/can/kvaser_pciefd.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)
--- a/drivers/net/can/kvaser_pciefd.c +++ b/drivers/net/can/kvaser_pciefd.c @@ -248,6 +248,9 @@ MODULE_DESCRIPTION("CAN driver for Kvase #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 { @@ -1283,7 +1286,10 @@ static int kvaser_pciefd_rx_error_frame(
can->err_rep_cnt++; can->can.can_stats.bus_error++; - stats->rx_errors++; + if (p->header[1] & KVASER_PCIEFD_EPACK_DIR_TX) + stats->tx_errors++; + else + stats->rx_errors++;
can->bec.txerr = bec.txerr; can->bec.rxerr = bec.rxerr;