Subject: [PATCH] ptp: add stub function for ptp_get_msgtype()

From: Yangbo Lu <[email-masked]>
Date: Sun, 27 Sep 2020 16:01:50 +0800

Added the missing stub function for ptp_get_msgtype().

Reported-by: Randy Dunlap <[email-masked]>
Fixes: 036c508ba95e ("ptp: Add generic ptp message type function")
Signed-off-by: Yangbo Lu <[email-masked]>
---
 include/linux/ptp_classify.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/include/linux/ptp_classify.h b/include/linux/ptp_classify.h
index 8437307..c6487b7 100644
--- 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_ */
-- 
2.7.4