This is a note to let you know that I've just added the patch titled
can: f81604: f81604_handle_can_bus_errors(): fix {rx,tx}_errors statistics
to the 6.6-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-f81604-f81604_handle_can_bus_errors-fix-rx-tx-_e.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 79c18bbd3f10adf36c9e01319d04567db36b2481
Author: Dario Binacchi <dario.binacchi@xxxxxxxxxxxxxxxxxxxx>
Date: Fri Nov 22 23:15:53 2024 +0100
can: f81604: f81604_handle_can_bus_errors(): fix {rx,tx}_errors statistics
[ Upstream commit d7b916540c2ba3d2a88c27b2a6287b39d8eac052 ]
The f81604_handle_can_bus_errors() function only incremented the receive
error counter and never the transmit error counter, even if the ECC_DIR
flag reported that an error had occurred during transmission.
Increment the receive/transmit error counter based on the value of the
ECC_DIR flag.
Fixes: 88da17436973 ("can: usb: f81604: add Fintek F81604 support")
Signed-off-by: Dario Binacchi <dario.binacchi@xxxxxxxxxxxxxxxxxxxx>
Link: https://patch.msgid.link/20241122221650.633981-13-dario.binacchi@xxxxxxxxxxxxxxxxxxxx
Signed-off-by: Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/can/usb/f81604.c b/drivers/net/can/usb/f81604.c
index ec8cef7fd2d53..fb9fb16507f0b 100644
--- a/drivers/net/can/usb/f81604.c
+++ b/drivers/net/can/usb/f81604.c
@@ -526,7 +526,6 @@ static void f81604_handle_can_bus_errors(struct f81604_port_priv *priv,
netdev_dbg(netdev, "bus error interrupt\n");
priv->can.can_stats.bus_error++;
- stats->rx_errors++;
if (skb) {
cf->can_id |= CAN_ERR_PROT | CAN_ERR_BUSERROR;
@@ -548,10 +547,15 @@ static void f81604_handle_can_bus_errors(struct f81604_port_priv *priv,
/* set error location */
cf->data[3] = data->ecc & F81604_SJA1000_ECC_SEG;
+ }
- /* Error occurred during transmission? */
- if ((data->ecc & F81604_SJA1000_ECC_DIR) == 0)
+ /* Error occurred during transmission? */
+ if ((data->ecc & F81604_SJA1000_ECC_DIR) == 0) {
+ stats->tx_errors++;
+ if (skb)
cf->data[2] |= CAN_ERR_PROT_TX;
+ } else {
+ stats->rx_errors++;
}
set_bit(F81604_CLEAR_ECC, &priv->clear_flags);
