diff options
Diffstat (limited to 'drivers/net/can/dev/skb.c')
| -rw-r--r-- | drivers/net/can/dev/skb.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/drivers/net/can/dev/skb.c b/drivers/net/can/dev/skb.c index 07e0feac8629..f457c94ba82f 100644 --- a/drivers/net/can/dev/skb.c +++ b/drivers/net/can/dev/skb.c @@ -299,18 +299,20 @@ static bool can_skb_headroom_valid(struct net_device *dev, struct sk_buff *skb) /* Drop a given socketbuffer if it does not contain a valid CAN frame. */ bool can_dropped_invalid_skb(struct net_device *dev, struct sk_buff *skb) { - const struct canfd_frame *cfd = (struct canfd_frame *)skb->data; struct can_priv *priv = netdev_priv(dev); - if (skb->protocol == htons(ETH_P_CAN)) { - if (unlikely(skb->len != CAN_MTU || - cfd->len > CAN_MAX_DLEN)) + switch (ntohs(skb->protocol)) { + case ETH_P_CAN: + if (!can_is_can_skb(skb)) goto inval_skb; - } else if (skb->protocol == htons(ETH_P_CANFD)) { - if (unlikely(skb->len != CANFD_MTU || - cfd->len > CANFD_MAX_DLEN)) + break; + + case ETH_P_CANFD: + if (!can_is_canfd_skb(skb)) goto inval_skb; - } else { + break; + + default: goto inval_skb; } |