iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

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

Browse Source 
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>
This commit is contained in:
Jimmy Assarsson 2021-12-08 16:21:21 +01:00 committed by Marc Kleine-Budde
parent a50e659b2a
commit 36aea60fc8
1 changed files with 7 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/net/can/kvaser_pciefd.c
View File

@ -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 {
@ -1285,7 +1288,10 @@ static int kvaser_pciefd_rx_error_frame(struct kvaser_pciefd_can *can,
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;