How to UDP Broadcast from Linux Kernel?

lock_sock(sock->sk);
sock->sk->broadcast = 1;
release_sock(sock->sk);

//Socket creation
sock_create(AF_INET, SOCK_DGRAM, IPPROTO_UDP, &sock);

//Broadcasting
int broadcast = 1;
int err;

if( (err = sock->ops->setsockopt(sock, SOL_SOCKET, SO_BROADCAST, (char *)&broadcast, sizeof broadcast)) < 0 )
{
    printk(KERN_ALERT MODULE_NAME ": Could not configure broadcast, error %dn", err);
    return -1;
}

sock->sk->sk_flags |= SO_BROADCAST;