route: make nh_encap_ops const

Author: thom311

lib/route/nexthop-encap.h

@@ -33,20 +33,20 @@ void *nh_encap_check_and_get_priv(struct rtnl_nh_encap *nh_encap,
 /*
  * MPLS encap
  */
-extern struct nh_encap_ops mpls_encap_ops;
+extern const struct nh_encap_ops mpls_encap_ops;
 
 /*
  * IPv6 encap
  */
-extern struct nh_encap_ops ip6_encap_ops;
+extern const struct nh_encap_ops ip6_encap_ops;
 
 /*
  * IPv4 encap
  */
-extern struct nh_encap_ops ip_encap_ops;
+extern const struct nh_encap_ops ip_encap_ops;
 
 /*
  * ILA encap
  */
-extern struct nh_encap_ops ila_encap_ops;
+extern const struct nh_encap_ops ila_encap_ops;
 #endif

lib/route/nexthop_encap.c

@@ -7,9 +7,9 @@
 #include "nl-route.h"
 #include "nexthop-encap.h"
 
-static struct lwtunnel_encap_type {
+static const struct lwtunnel_encap_type {
 	const char *name;
-	struct nh_encap_ops *ops;
+	const struct nh_encap_ops *ops;
 } lwtunnel_encap_types[__LWTUNNEL_ENCAP_MAX] = {
 	[LWTUNNEL_ENCAP_NONE] = { .name = "none" },
 	[LWTUNNEL_ENCAP_MPLS] = { .name = "mpls", .ops = &mpls_encap_ops },

lib/route/nh_encap_ila.c

@@ -153,7 +153,7 @@ static int ila_encap_parse_msg(struct nlattr *nla,
 	return 0;
 }
 
-struct nh_encap_ops ila_encap_ops = {
+const struct nh_encap_ops ila_encap_ops = {
 	.encap_type = LWTUNNEL_ENCAP_ILA,
 	.build_msg = ila_encap_build_msg,
 	.parse_msg = ila_encap_parse_msg,

lib/route/nh_encap_ip.c

@@ -211,7 +211,7 @@ static int ip_encap_compare(void *_a, void *_b)
 	return diff;
 }
 
-struct nh_encap_ops ip_encap_ops = {
+const struct nh_encap_ops ip_encap_ops = {
 	.encap_type = LWTUNNEL_ENCAP_IP,
 	.build_msg = ip_encap_build_msg,
 	.parse_msg = ip_encap_parse_msg,

lib/route/nh_encap_ip6.c

@@ -214,7 +214,7 @@ static int ip6_encap_compare(void *_a, void *_b)
 	return diff;
 }
 
-struct nh_encap_ops ip6_encap_ops = {
+const struct nh_encap_ops ip6_encap_ops = {
 	.encap_type = LWTUNNEL_ENCAP_IP6,
 	.build_msg = ip6_encap_build_msg,
 	.parse_msg = ip6_encap_parse_msg,

lib/route/nh_encap_mpls.c

@@ -120,7 +120,7 @@ static int mpls_encap_compare(void *_a, void *_b)
 	return diff;
 }
 
-struct nh_encap_ops mpls_encap_ops = {
+const struct nh_encap_ops mpls_encap_ops = {
 	.encap_type = LWTUNNEL_ENCAP_MPLS,
 	.build_msg = mpls_encap_build_msg,
 	.parse_msg = mpls_encap_parse_msg,

lib/route/nl-route.h

@@ -77,7 +77,7 @@ struct rtnl_link {
 };
 
 struct rtnl_nh_encap {
-	struct nh_encap_ops *ops;
+	const struct nh_encap_ops *ops;
 	void *priv; /* private data for encap type */
 };