ipt_time fixes (resend, sorry)

[Samuel Jean]

I wrote:
> I use an ugly hack of this kind:
> 
>    /* We might not have a timestamp, get one */
>    if (skb->stamp.tv_sec == 0)
>       do_gettimeofday((struct timeval *)&skb->stamp);
> 
>    now = timeval_to_jiffies(&skb->stamp);
> 
> 
>    if (struct->curr != now)
>       struct->prev = xchg(&struct->curr, now);
> 

Hey, just realized it really doesn't make sense in that module 
(ipt_time). Sorry, I think I was blinded by my current module.

Please discard my post.

Samuel