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diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index 0113993..0ea4967 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -767,6 +767,7 @@ static int inet_rtm_delroute(struct sk_buff *skb, struct nlmsghdr *nlh,
return err;
}
+#include "kpatch-macros.h"
static int inet_rtm_newroute(struct sk_buff *skb, struct nlmsghdr *nlh,
struct netlink_ext_ack *extack)
{
@@ -788,6 +789,7 @@ static int inet_rtm_newroute(struct sk_buff *skb, struct nlmsghdr *nlh,
err = fib_table_insert(net, tb, &cfg, extack);
if (!err && cfg.fc_type == RTN_LOCAL)
net->ipv4.fib_has_custom_local_routes = true;
+ KPATCH_PRINTK("[inet_rtm_newroute]: err is %d\n", err);
errout:
return err;
}
diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index 446204c..5b73a01 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -1025,6 +1025,7 @@ static bool fib_valid_prefsrc(struct fib_config *cfg, __be32 fib_prefsrc)
fi->fib_metrics->metrics);
}
+#include "kpatch-macros.h"
struct fib_info *fib_create_info(struct fib_config *cfg,
struct netlink_ext_ack *extack)
{
@@ -1058,6 +1059,7 @@ struct fib_info *fib_create_info(struct fib_config *cfg,
#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;
@@ -1078,6 +1080,7 @@ struct fib_info *fib_create_info(struct fib_config *cfg,
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)
@@ -1093,6 +1096,8 @@ struct fib_info *fib_create_info(struct fib_config *cfg,
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;
@@ -1109,8 +1114,10 @@ struct fib_info *fib_create_info(struct fib_config *cfg,
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;
@@ -1172,6 +1179,7 @@ struct fib_info *fib_create_info(struct fib_config *cfg,
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) {
@@ -1193,6 +1201,7 @@ struct fib_info *fib_create_info(struct fib_config *cfg,
goto err_inval;
}
}
+ KPATCH_PRINTK("[fib_create_info]: 7 create error err is %d\n",err);
if (cfg->fc_scope > RT_SCOPE_HOST) {
NL_SET_ERR_MSG(extack, "Invalid scope");
@@ -1231,6 +1240,7 @@ struct fib_info *fib_create_info(struct fib_config *cfg,
if (linkdown == fi->fib_nhs)
fi->fib_flags |= RTNH_F_LINKDOWN;
}
+ KPATCH_PRINTK("[fib_create_info]: 8 create error err is %d\n",err);
if (fi->fib_prefsrc && !fib_valid_prefsrc(cfg, fi->fib_prefsrc)) {
NL_SET_ERR_MSG(extack, "Invalid prefsrc address");
@@ -1240,6 +1250,7 @@ struct fib_info *fib_create_info(struct fib_config *cfg,
change_nexthops(fi) {
fib_info_update_nh_saddr(net, nexthop_nh);
} endfor_nexthops(fi)
+ KPATCH_PRINTK("[fib_create_info]: 9 create error err is %d\n",err);
fib_rebalance(fi);
@@ -1251,6 +1262,7 @@ struct fib_info *fib_create_info(struct fib_config *cfg,
ofi->fib_treeref++;
return ofi;
}
+ KPATCH_PRINTK("[fib_create_info]: 10 create error err is %d\n",err);
fi->fib_treeref++;
refcount_set(&fi->fib_clntref, 1);
@@ -1274,6 +1286,7 @@ struct fib_info *fib_create_info(struct fib_config *cfg,
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:
@@ -1284,6 +1297,7 @@ struct fib_info *fib_create_info(struct fib_config *cfg,
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);
}
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index 5bc0c89..d57b327 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -1121,6 +1121,7 @@ static bool fib_valid_key_len(u32 key, u8 plen, struct netlink_ext_ack *extack)
}
/* Caller must hold RTNL. */
+#include "kpatch-macros.h"
int fib_table_insert(struct net *net, struct fib_table *tb,
struct fib_config *cfg, struct netlink_ext_ack *extack)
{
@@ -1143,11 +1144,14 @@ int fib_table_insert(struct net *net, struct fib_table *tb,
pr_debug("Insert table=%u %08x/%d\n", tb->tb_id, key, plen);
+ KPATCH_PRINTK("[fib_table_insert]: start\n");
fi = fib_create_info(cfg, extack);
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,
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