OpenCloudOS-Kernel/drivers/net/can/usb
Vincent Mailhol 8e674ca742 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>
2022-01-05 12:09:05 +01:00
..
etas_es58x can: do not increase rx statistics when generating a CAN rx error message frame 2022-01-05 12:09:05 +01:00
kvaser_usb can: do not increase rx_bytes statistics for RTR frames 2022-01-05 12:09:05 +01:00
peak_usb can: do not increase rx_bytes statistics for RTR frames 2022-01-05 12:09:05 +01:00
Kconfig can: kvaser_usb: Add new Kvaser hydra devices 2021-05-27 09:42:23 +02:00
Makefile can: etas_es58x: add core support for ETAS ES58X CAN USB interfaces 2021-04-13 10:15:42 +02:00
ems_usb.c can: do not increase rx_bytes statistics for RTR frames 2022-01-05 12:09:05 +01:00
esd_usb2.c can: do not increase rx_bytes statistics for RTR frames 2022-01-05 12:09:05 +01:00
gs_usb.c can: gs_usb: use %u to print unsigned values 2021-10-24 16:26:05 +02:00
mcba_usb.c can: do not increase rx_bytes statistics for RTR frames 2022-01-05 12:09:05 +01:00
ucan.c can: do not increase rx_bytes statistics for RTR frames 2022-01-05 12:09:05 +01:00
usb_8dev.c can: do not increase rx_bytes statistics for RTR frames 2022-01-05 12:09:05 +01:00