diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 42edce6abe2349fc428c6321f81af81578ca5cb2..da7da9c0ed1b50e1f8dac7c08b919c104c287e30 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -1251,7 +1251,7 @@ extern void skb_add_mtu(int mtu);
  *	This function converts the offset back to a struct timeval and stores
  *	it in stamp.
  */
-static inline void skb_get_timestamp(struct sk_buff *skb, struct timeval *stamp)
+static inline void skb_get_timestamp(const struct sk_buff *skb, struct timeval *stamp)
 {
 	stamp->tv_sec  = skb->tstamp.off_sec;
 	stamp->tv_usec = skb->tstamp.off_usec;
@@ -1270,7 +1270,7 @@ static inline void skb_get_timestamp(struct sk_buff *skb, struct timeval *stamp)
  *	This function converts a struct timeval to an offset and stores
  *	it in the skb.
  */
-static inline void skb_set_timestamp(struct sk_buff *skb, struct timeval *stamp)
+static inline void skb_set_timestamp(struct sk_buff *skb, const struct timeval *stamp)
 {
 	skb->tstamp.off_sec  = stamp->tv_sec - skb_tv_base.tv_sec;
 	skb->tstamp.off_usec = stamp->tv_usec - skb_tv_base.tv_usec;