From: Willem de Bruijn <willemb@google.com>
Date: Tue, 23 Apr 2013 00:39:28 +0000 (+0000)
Subject: packet: tx timestamping on tpacket ring
X-Git-Tag: omap-for-v3.10/dt-fixes-for-merge-window~65^2~37^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2e31396fa14be50a98c5d2b00416ebd74d381c1f;p=pandora-kernel.git

packet: tx timestamping on tpacket ring

When transmit timestamping is enabled at the socket level, record a
timestamp on packets written to a PACKET_TX_RING. Tx timestamps are
always looped to the application over the socket error queue. Software
timestamps are also written back into the packet frame header in the
packet ring.

Reported-by: Paul Chavent <paul.chavent@onera.fr>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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