diff --git a/common/common_defines.h b/common/common_defines.h
index e35f49a..05cd539 100644
--- a/common/common_defines.h
+++ b/common/common_defines.h
@@ -94,7 +94,7 @@ struct ingressinfo {
 
 #define PORT_AVAILABLE 1024
 
-int verbose;
+static int verbose = 0;
 
 #define EXIT_OK   0 /* == EXIT_SUCCESS (stdlib.h) man exit(3) */
 #define EXIT_FAIL  1 /* == EXIT_FAILURE (stdlib.h) man exit(3) */
diff --git a/tc_prog/tc_prog_kern.c b/tc_prog/tc_prog_kern.c
index 12004ed..90e6f91 100644
--- a/tc_prog/tc_prog_kern.c
+++ b/tc_prog/tc_prog_kern.c
@@ -47,7 +47,7 @@ struct bpf_elf_map SEC("maps") devmap = {
 
 SEC("tc_init_e")
 int tc_init_e_func(struct __sk_buff *skb) {
-    int err;
+    // int err;
     void *data = (void *)(long)skb->data;
     void *data_end = (void *)(long)skb->data_end;
     ////////////////// Check if the packet is a VXLAN packet ////////////////////
@@ -95,12 +95,14 @@ int tc_init_e_func(struct __sk_buff *skb) {
     // Make sure there is elem in the map
     struct egressinfo tmpnodeegressinfo_;
     initegressinfo(&tmpnodeegressinfo_, data, skb->ifindex);
-    err = bpf_map_update_elem(&egress_cache, &outer_iph->daddr, &tmpnodeegressinfo_, BPF_NOEXIST);
+    // err = 
+    bpf_map_update_elem(&egress_cache, &outer_iph->daddr, &tmpnodeegressinfo_, BPF_NOEXIST);
     // if(!err) {
         // bpf_printkm("(tc_init_e)INFO: Updated an nodeegressinfo element");
     // }
 
-    err = bpf_map_update_elem(&egressip_cache, &inner_iph->daddr, &outer_iph->daddr, BPF_NOEXIST);
+    // err = 
+    bpf_map_update_elem(&egressip_cache, &inner_iph->daddr, &outer_iph->daddr, BPF_NOEXIST);
     // if(!err) {
         // bpf_printkm("(tc_init_e)INFO: Added an podip element. RemoteIP is %x", inner_iph->daddr);
     // }