ptp: add stub function for ptp_get_msgtype()

Added the missing stub function for ptp_get_msgtype().

Fixes: 036c508ba95e ("ptp: Add generic ptp message type function")
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/linux/ptp_classify.h b/include/linux/ptp_classify.h
index 8437307..c6487b7 100644 (file)
--- a/include/linux/ptp_classify.h
+++ b/include/linux/ptp_classify.h
@@ -134,5 +134,13 @@ static inline struct ptp_header *ptp_parse_header(struct sk_buff *skb,
 {
        return NULL;
 }
+static inline u8 ptp_get_msgtype(const struct ptp_header *hdr,
+                                unsigned int type)
+{
+       /* The return is meaningless. The stub function would not be
+        * executed since no available header from ptp_parse_header.
+        */
+       return 0;
+}
 #endif
 #endif /* _PTP_CLASSIFY_H_ */