*/
#define get_can_dlc(i) (min_t(__u8, (i), 8))
+/* Drop a given socketbuffer if it does not contain a valid CAN frame. */
+static inline int can_dropped_invalid_skb(struct net_device *dev,
+ struct sk_buff *skb)
+{
+ const struct can_frame *cf = (struct can_frame *)skb->data;
+
+ if (unlikely(skb->len != sizeof(*cf) || cf->can_dlc > 8)) {
+ kfree_skb(skb);
+ dev->stats.tx_dropped++;
+ return 1;
+ }
+
+ return 0;
+}
+
struct net_device *alloc_candev(int sizeof_priv, unsigned int echo_skb_max);
void free_candev(struct net_device *dev);