diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index 46f44703b6117d7bca43ac337844d3515751fd51..567f08b559a1b03ab1973847bcc515b873fc7eef 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -845,7 +845,7 @@ __be16 xfrm_flowi_dport(const struct flowi *fl)
 	return port;
 }
 
-extern int xfrm_selector_match(struct xfrm_selector *sel,
+extern int xfrm_selector_match(const struct xfrm_selector *sel,
 			       const struct flowi *fl,
 			       unsigned short family);
 
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index 28c865adf609af8905f37e9d2498ae6dea9e4ab1..4827c8db864ddcce454c55a0c05c20f0b6f62ba5 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -58,7 +58,7 @@ static struct xfrm_policy *__xfrm_policy_unlink(struct xfrm_policy *pol,
 						int dir);
 
 static inline int
-__xfrm4_selector_match(struct xfrm_selector *sel, const struct flowi *fl)
+__xfrm4_selector_match(const struct xfrm_selector *sel, const struct flowi *fl)
 {
 	return  addr_match(&fl->fl4_dst, &sel->daddr, sel->prefixlen_d) &&
 		addr_match(&fl->fl4_src, &sel->saddr, sel->prefixlen_s) &&
@@ -69,7 +69,7 @@ __xfrm4_selector_match(struct xfrm_selector *sel, const struct flowi *fl)
 }
 
 static inline int
-__xfrm6_selector_match(struct xfrm_selector *sel, const struct flowi *fl)
+__xfrm6_selector_match(const struct xfrm_selector *sel, const struct flowi *fl)
 {
 	return  addr_match(&fl->fl6_dst, &sel->daddr, sel->prefixlen_d) &&
 		addr_match(&fl->fl6_src, &sel->saddr, sel->prefixlen_s) &&
@@ -79,7 +79,7 @@ __xfrm6_selector_match(struct xfrm_selector *sel, const struct flowi *fl)
 		(fl->oif == sel->ifindex || !sel->ifindex);
 }
 
-int xfrm_selector_match(struct xfrm_selector *sel, const struct flowi *fl,
+int xfrm_selector_match(const struct xfrm_selector *sel, const struct flowi *fl,
 			unsigned short family)
 {
 	switch (family) {