can: Unify droping of invalid tx skbs and netdev stats
To prevent the CAN drivers to operate on invalid socketbuffers the skbs are
now checked and silently dropped at the xmit-function consistently.
Also the netdev stats are consistently using the CAN data length code (dlc)
for [rx|tx]_bytes now.
Signed-off-by: Oliver Hartkopp <oliver@hartkopp.net>
Acked-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/can/at91_can.c b/drivers/net/can/at91_can.c
index 166cc7e..f728749 100644
--- a/drivers/net/can/at91_can.c
+++ b/drivers/net/can/at91_can.c
@@ -342,6 +342,9 @@
unsigned int mb, prio;
u32 reg_mid, reg_mcr;
+ if (can_dropped_invalid_skb(dev, skb))
+ return NETDEV_TX_OK;
+
mb = get_tx_next_mb(priv);
prio = get_tx_next_prio(priv);