*/
struct ptp_header *ptp_parse_header(struct sk_buff *skb, unsigned int type);
+/**
+ * ptp_get_msgtype - Extract ptp message type from given header
+ * @hdr: ptp header
+ * @type: type of the packet (see ptp_classify_raw())
+ *
+ * This function returns the message type for a given ptp header. It takes care
+ * of the different ptp header versions (v1 or v2).
+ *
+ * Return: The message type
+ */
+static inline u8 ptp_get_msgtype(const struct ptp_header *hdr,
+ unsigned int type)
+{
+ u8 msgtype;
+
+ if (unlikely(type & PTP_CLASS_V1)) {
+ /* msg type is located at the control field for ptp v1 */
+ msgtype = hdr->control;
+ } else {
+ msgtype = hdr->tsmt & 0x0f;
+ }
+
+ return msgtype;
+}
+
void __init ptp_classifier_init(void);
#else
static inline void ptp_classifier_init(void)