can: gw: indicate and count deleted frames due to misconfiguration

Add a statistic counter to detect deleted frames due to misconfiguration with
a new read-only CGW_DELETED netlink attribute for the CAN gateway.

Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/uapi/linux/can/gw.h b/include/uapi/linux/can/gw.h
index 0505c7f86213..ae07bec74f4b 100644
--- a/include/uapi/linux/can/gw.h
+++ b/include/uapi/linux/can/gw.h
@@ -44,6 +44,7 @@ enum {
         CGW_SRC_IF,     /* ifindex of source network interface */
         CGW_DST_IF,     /* ifindex of destination network interface */
         CGW_FILTER,     /* specify struct can_filter on source CAN device */
+        CGW_DELETED,    /* number of deleted CAN frames (see max_hops param) */
         __CGW_MAX
 };