diff options
Diffstat (limited to 'include/linux/can/skb.h')
| -rw-r--r-- | include/linux/can/skb.h | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/include/linux/can/skb.h b/include/linux/can/skb.h index 182749e858b3..27ebfc28510f 100644 --- a/include/linux/can/skb.h +++ b/include/linux/can/skb.h @@ -97,10 +97,20 @@ static inline struct sk_buff *can_create_echo_skb(struct sk_buff *skb) return nskb; } +static inline bool can_is_can_skb(const struct sk_buff *skb) +{ + struct can_frame *cf = (struct can_frame *)skb->data; + + /* the CAN specific type of skb is identified by its data length */ + return (skb->len == CAN_MTU && cf->len <= CAN_MAX_DLEN); +} + static inline bool can_is_canfd_skb(const struct sk_buff *skb) { + struct canfd_frame *cfd = (struct canfd_frame *)skb->data; + /* the CAN specific type of skb is identified by its data length */ - return skb->len == CANFD_MTU; + return (skb->len == CANFD_MTU && cfd->len <= CANFD_MAX_DLEN); } #endif /* !_CAN_SKB_H */ |