From: Jakub Kicinski <kubakici@wp.pl>
Date: Wed, 2 Apr 2014 10:33:28 +0000 (+0000)
Subject: ixgbe: clean up Rx time stamping code
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~214^2~63^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=eda183c21a444aef5800cef98d63d62914d2a81a;p=pandora-kernel.git

ixgbe: clean up Rx time stamping code

Time stamping resources are per-interface so there is no need
to keep separate last_rx_timestamp for each Rx ring, move
last_rx_timestamp to the adapter structure.

With last_rx_timestamp inside adapter, ixgbe_ptp_rx_hwtstamp()
inline function is reduced to a single if statement so it is
no longer necessary. If statement is placed directly in
ixgbe_process_skb_fields() fixing likely/unlikely marking.

Checks for q_vector or adapter to be NULL are superfluous.

Comment about taking I/O hit is a leftover from previous design.

Signed-off-by: Jakub Kicinski <kubakici@wp.pl>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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