diff options
| author | Vincent Mailhol <mailhol.vincent@wanadoo.fr> | 2021-12-07 13:15:30 +0100 |
|---|---|---|
| committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2022-01-05 12:09:05 +0100 |
| commit | 8e674ca74244eac1cd85c6e9a89b588a03c55ff7 (patch) | |
| tree | 5c7f603ed393781c187c6a2d8ac23e59ca5d7cd1 /drivers/net/can/c_can | |
| parent | can: do not copy the payload of RTR frames (diff) | |
| download | linux-8e674ca74244eac1cd85c6e9a89b588a03c55ff7.tar.xz linux-8e674ca74244eac1cd85c6e9a89b588a03c55ff7.zip | |
can: do not increase rx_bytes statistics for RTR frames
The actual payload length of the CAN Remote Transmission Request (RTR)
frames is always 0, i.e. no payload is transmitted on the wire.
However, those RTR frames still use the DLC to indicate the length of
the requested frame.
As such, net_device_stats::rx_bytes should not be increased for the
RTR frames.
This patch fixes all the CAN drivers.
Link: https://lore.kernel.org/all/20211207121531.42941-5-mailhol.vincent@wanadoo.fr
Cc: Marc Kleine-Budde <mkl@pengutronix.de>
Cc: Nicolas Ferre <nicolas.ferre@microchip.com>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Ludovic Desroches <ludovic.desroches@microchip.com>
Cc: Chandrasekar Ramakrishnan <rcsekar@samsung.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Chen-Yu Tsai <wens@csie.org>
Cc: Jernej Skrabec <jernej.skrabec@gmail.com>
Cc: Yasushi SHOJI <yashi@spacecubics.com>
Cc: Appana Durga Kedareswara rao <appana.durga.rao@xilinx.com>
Cc: Naga Sureshkumar Relli <naga.sureshkumar.relli@xilinx.com>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: Stephane Grosjean <s.grosjean@peak-system.com>
Tested-by: Jimmy Assarsson <extja@kvaser.com> # kvaser
Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Acked-by: Stefan Mätje <stefan.maetje@esd.eu> # esd_usb2
Tested-by: Stefan Mätje <stefan.maetje@esd.eu> # esd_usb2
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'drivers/net/can/c_can')
| -rw-r--r-- | drivers/net/can/c_can/c_can_main.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/can/c_can/c_can_main.c b/drivers/net/can/c_can/c_can_main.c index 670754a12984..29e91804d81c 100644 --- a/drivers/net/can/c_can/c_can_main.c +++ b/drivers/net/can/c_can/c_can_main.c @@ -403,10 +403,10 @@ static int c_can_read_msg_object(struct net_device *dev, int iface, u32 ctrl) frame->data[i + 1] = data >> 8; } } - } + stats->rx_bytes += frame->len; + } stats->rx_packets++; - stats->rx_bytes += frame->len; netif_receive_skb(skb); return 0; |