// Skip function: __VERIFIER_error

// Skip function: __VERIFIER_nondet_int

// Skip function: __VERIFIER_nondet_ulong

// Skip function: __VERIFIER_nondet_ushort

// Function: __dev_kfree_skb_irq
// with type: void __dev_kfree_skb_irq(struct sk_buff *, enum skb_free_reason )
// with return type: void
void __dev_kfree_skb_irq(struct sk_buff *arg0, enum skb_free_reason arg1) {
  // Void type
  return;
}

// Function: arcnet_unregister_proto
// with type: void arcnet_unregister_proto(struct ArcProto *)
// with return type: void
void arcnet_unregister_proto(struct ArcProto *arg0) {
  // Void type
  return;
}

// Skip function: calloc

// Skip function: malloc

// Skip function: memcpy

// Skip function: memset

// Function: printk
// with type: int printk(const char *, ...)
// with return type: int
int __VERIFIER_nondet_int(void);
int printk(const char *arg0, ...) {
  // Simple type
  return __VERIFIER_nondet_int();
}

// Function: skb_pull
// with type: unsigned char *skb_pull(struct sk_buff *, unsigned int)
// with return type: (unsigned char)*
unsigned char *skb_pull(struct sk_buff *arg0, unsigned int arg1) {
  // Pointer type
  return ldv_malloc(sizeof(unsigned char));
}

// Function: skb_push
// with type: unsigned char *skb_push(struct sk_buff *, unsigned int)
// with return type: (unsigned char)*
unsigned char *skb_push(struct sk_buff *arg0, unsigned int arg1) {
  // Pointer type
  return ldv_malloc(sizeof(unsigned char));
}

// Function: skb_put
// with type: unsigned char *skb_put(struct sk_buff *, unsigned int)
// with return type: (unsigned char)*
unsigned char *skb_put(struct sk_buff *arg0, unsigned int arg1) {
  unsigned char *ret_val = arg0->data + arg0->tail;
  // a more precise implementation of skb_put would actually re-allocate memory
  // here
  arg0->tail += arg1;
  // Pointer type
  return ret_val;
}