vcap_val_rule
err |= vcap_val_rule(vrule, proto);
err = vcap_val_rule(vrule, l3_proto);
err = vcap_val_rule(vrule, state.l3_proto);
err = vcap_val_rule(vrule, ETH_P_ALL);
EXPORT_SYMBOL_GPL(vcap_val_rule);
int vcap_val_rule(struct vcap_rule *rule, u16 l3_proto);
ret = vcap_val_rule(rule, ETH_P_ALL);
ret = vcap_val_rule(rule, ETH_P_ALL);