This is a note to let you know that I've just added the patch titled
can: kvaser_pciefd: kvaser_pciefd_rx_error_frame(): increase correct stats->{rx,tx}_errors counter
to the 5.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
can-kvaser_pciefd-kvaser_pciefd_rx_error_frame-increase-correct-stats-rx-tx-_errors-counter.patch
and it can be found in the queue-5.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 36aea60fc892ce73f96d45dc7eb239c7c4c1fa69 Mon Sep 17 00:00:00 2001
From: Jimmy Assarsson <extja@xxxxxxxxxx>
Date: Wed, 8 Dec 2021 16:21:21 +0100
Subject: can: kvaser_pciefd: kvaser_pciefd_rx_error_frame(): increase correct stats->{rx,tx}_errors counter
From: Jimmy Assarsson <extja@xxxxxxxxxx>
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@xxxxxxxxxx
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Jimmy Assarsson <extja@xxxxxxxxxx>
Signed-off-by: Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
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 {
@@ -1285,7 +1288,10 @@ 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;
Patches currently in stable-queue which might be from extja@xxxxxxxxxx are
queue-5.10/can-kvaser_usb-get-can-clock-frequency-from-device.patch
queue-5.10/can-kvaser_pciefd-kvaser_pciefd_rx_error_frame-increase-correct-stats-rx-tx-_errors-counter.patch
