netdev - skb->tstamp == 0.00000 ?

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Message-ID: <CAJX4=r1nz4Wq00tmJKUsJNLb41Bh4=-V1ixLcS05mXm0tpek9g@mail.gmail.com>
Date:	Sat, 19 Nov 2011 18:18:51 -0300
From:	Felipe Dias <felipediassss@...il.com>
To:	netdev@...r.kernel.org
Subject: skb->tstamp == 0.00000 ?

Hi..

Please let me know if this isnt right list to this kind of question.

I'm registering a new protocol handler with dev_add_pack. I would like
to know only the difference between timestamp on skb->tstamp and the
time of reception by my module.

So I do:
----
struct timeval time_skb, time_module;
do_gettimeofday(&time_module):
skb_get_timestamp(skb, &time_skb);
---

And time_skb.tv_sec and time_skb.tv_usec are equal to 0;

I'm doing some wrong ?

Best regards,
Felipe
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