Index: kernel-rhel7/net/ipv4/fib_frontend.c

===================================================================

--- kernel-rhel7.orig/net/ipv4/fib_frontend.c

+++ kernel-rhel7/net/ipv4/fib_frontend.c

@@ -685,6 +685,7 @@ errout:

 	return err;

 }

+#include "kpatch-macros.h"

 static int inet_rtm_newroute(struct sk_buff *skb, struct nlmsghdr *nlh)

 {

 	struct net *net = sock_net(skb->sk);

@@ -703,6 +704,7 @@ static int inet_rtm_newroute(struct sk_b

 	}

 	err = fib_table_insert(net, tb, &cfg;;

+	KPATCH_PRINTK("[inet_rtm_newroute]: err is %d\n", err);

 errout:

 	return err;

 }

Index: kernel-rhel7/net/ipv4/fib_semantics.c

===================================================================

--- kernel-rhel7.orig/net/ipv4/fib_semantics.c

+++ kernel-rhel7/net/ipv4/fib_semantics.c

@@ -969,6 +969,7 @@ fib_convert_metrics(struct fib_info *fi,

 	return 0;

 }

+#include "kpatch-macros.h"

 struct fib_info *fib_create_info(struct fib_config *cfg)

 {

 	int err;

@@ -993,6 +994,7 @@ struct fib_info *fib_create_info(struct

 #endif

 	err = -ENOBUFS;

+	KPATCH_PRINTK("[fib_create_info]: create error err is %d\n",err);

 	if (fib_info_cnt >= fib_info_hash_size) {

 		unsigned int new_size = fib_info_hash_size << 1;

 		struct hlist_head *new_info_hash;

@@ -1013,6 +1015,7 @@ struct fib_info *fib_create_info(struct

 		if (!fib_info_hash_size)

 			goto failure;

 	}

+	KPATCH_PRINTK("[fib_create_info]: 2 create error err is %d\n",err);

 	fi = kzalloc(sizeof(*fi)+nhs*sizeof(struct fib_nh), GFP_KERNEL);

 	if (fi == NULL)

@@ -1028,6 +1031,8 @@ struct fib_info *fib_create_info(struct

 		fi->fib_metrics = (struct dst_metrics *)&dst_default_metrics;

 	}

 	fib_info_cnt++;

+	KPATCH_PRINTK("[fib_create_info]: 3 create error err is %d\n",err);

+

 	fi->fib_net = net;

 	fi->fib_protocol = cfg->fc_protocol;

 	fi->fib_scope = cfg->fc_scope;

@@ -1043,8 +1048,10 @@ struct fib_info *fib_create_info(struct

 		if (!nexthop_nh->nh_pcpu_rth_output)

 			goto failure;

 	} endfor_nexthops(fi)

+	KPATCH_PRINTK("[fib_create_info]: 4 create error err is %d\n",err);

 	err = fib_convert_metrics(fi, cfg);

+	KPATCH_PRINTK("[fib_create_info]: 5 create error err is %d\n",err);

 	if (err)

 		goto failure;

@@ -1095,6 +1102,7 @@ struct fib_info *fib_create_info(struct

 		nh->nh_weight = 1;

 #endif

 	}

+	KPATCH_PRINTK("[fib_create_info]: 6 create error err is %d\n",err);

 	if (fib_props[cfg->fc_type].error) {

 		if (cfg->fc_gw || cfg->fc_oif || cfg->fc_mp)

@@ -1112,6 +1120,7 @@ struct fib_info *fib_create_info(struct

 			goto err_inval;

 		}

 	}

+	KPATCH_PRINTK("[fib_create_info]: 7 create error err is %d\n",err);

 	if (cfg->fc_scope > RT_SCOPE_HOST)

 		goto err_inval;

@@ -1134,6 +1143,7 @@ struct fib_info *fib_create_info(struct

 				goto failure;

 		} endfor_nexthops(fi)

 	}

+	KPATCH_PRINTK("[fib_create_info]: 8 create error err is %d\n",err);

 	if (fi->fib_prefsrc) {

 		if (cfg->fc_type != RTN_LOCAL || !cfg->fc_dst ||

@@ -1146,6 +1156,7 @@ struct fib_info *fib_create_info(struct

 		fib_info_update_nh_saddr(net, nexthop_nh);

 		fib_add_weight(fi, nexthop_nh);

 	} endfor_nexthops(fi)

+	KPATCH_PRINTK("[fib_create_info]: 9 create error err is %d\n",err);

 	fib_rebalance(fi);

@@ -1157,6 +1168,7 @@ link_it:

 		ofi->fib_treeref++;

 		return ofi;

 	}

+	KPATCH_PRINTK("[fib_create_info]: 10 create error err is %d\n",err);

 	fi->fib_treeref++;

 	atomic_inc(&fi->fib_clntref);

@@ -1180,6 +1192,7 @@ link_it:

 		hlist_add_head(&nexthop_nh->nh_hash, head);

 	} endfor_nexthops(fi)

 	spin_unlock_bh(&fib_info_lock);

+	KPATCH_PRINTK("[fib_create_info]: 11 create error err is %d\n",err);

 	return fi;

 err_inval:

@@ -1190,6 +1203,7 @@ failure:

 		fi->fib_dead = 1;

 		free_fib_info(fi);

 	}

+	KPATCH_PRINTK("[fib_create_info]: 12 create error err is %d\n",err);

 	return ERR_PTR(err);

 }

Index: kernel-rhel7/net/ipv4/fib_trie.c

===================================================================

--- kernel-rhel7.orig/net/ipv4/fib_trie.c

+++ kernel-rhel7/net/ipv4/fib_trie.c

@@ -1105,6 +1105,7 @@ static int fib_insert_alias(struct trie

 }

 /* Caller must hold RTNL. */

+#include "kpatch-macros.h"

 int fib_table_insert(struct net *net, struct fib_table *tb,

 		     struct fib_config *cfg)

 {

@@ -1130,11 +1131,14 @@ int fib_table_insert(struct net *net, st

 	if ((plen < KEYLENGTH) && (key << plen))

 		return -EINVAL;

+	KPATCH_PRINTK("[fib_table_insert]: start\n");

 	fi = fib_create_info(cfg);

 	if (IS_ERR(fi)) {

 		err = PTR_ERR(fi);

+		KPATCH_PRINTK("[fib_table_insert]: create error err is %d\n",err);

 		goto err;

 	}

+	KPATCH_PRINTK("[fib_table_insert]: cross\n");

 	l = fib_find_node(t, &tp, key);

 	fa = l ? fib_find_alias(&l->leaf, slen, tos, fi->fib_priority,