From 72f95afa5faaf899f7344879b6ccd5f0cb271b28 Mon Sep 17 00:00:00 2001
From: Nick Hoath <nicholas.hoath@intel.com>
Date: Thu, 15 Jan 2015 13:10:37 +0000
Subject: [PATCH] drm/i915: Removed duplicate members from submit_request

Where there were duplicate variables for the tail, context and ring (engine)
in the gem request and the execlist queue item, use the one from the request
and remove the duplicate from the execlist queue item.

Issue: VIZ-4274

v1: Rebase
v2: Fixed build issues. Keep separate postfix & tail pointers as these are
used in different ways. Reinserted missing full tail pointer update.

Signed-off-by: Nick Hoath <nicholas.hoath@intel.com>
Reviewed-by: Thomas Daniel <thomas.daniel@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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