--- /dev/null
+From 820da7ae46332fa709b171eb7ba57cbd023fa6df Mon Sep 17 00:00:00 2001
+From: Jani Nikula <jani.nikula@intel.com>
+Date: Wed, 25 Nov 2015 16:47:23 +0200
+Subject: Revert "drm/i915: shut up gen8+ SDE irq dmesg noise"
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+From: Jani Nikula <jani.nikula@intel.com>
+
+commit 820da7ae46332fa709b171eb7ba57cbd023fa6df upstream.
+
+This reverts
+
+commit 97e5ed1111dcc5300a0f59a55248cd243937a8ab
+Author: Daniel Vetter <daniel.vetter@ffwll.ch>
+Date: Fri Oct 23 10:56:12 2015 +0200
+
+ drm/i915: shut up gen8+ SDE irq dmesg noise
+
+With the proper fix ("drm/i915: fix the SDE irq dmesg warnings
+properly") reliably in place, bring back the error message.
+
+Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
+Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
+Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
+Signed-off-by: Jani Nikula <jani.nikula@intel.com>
+Link: http://patchwork.freedesktop.org/patch/msgid/1448462843-32739-2-git-send-email-jani.nikula@intel.com
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/gpu/drm/i915/i915_irq.c | 10 +++-------
+ 1 file changed, 3 insertions(+), 7 deletions(-)
+
+--- a/drivers/gpu/drm/i915/i915_irq.c
++++ b/drivers/gpu/drm/i915/i915_irq.c
+@@ -2337,13 +2337,9 @@ static irqreturn_t gen8_irq_handler(int
+ spt_irq_handler(dev, pch_iir);
+ else
+ cpt_irq_handler(dev, pch_iir);
+- } else {
+- /*
+- * Like on previous PCH there seems to be something
+- * fishy going on with forwarding PCH interrupts.
+- */
+- DRM_DEBUG_DRIVER("The master control interrupt lied (SDE)!\n");
+- }
++ } else
++ DRM_ERROR("The master control interrupt lied (SDE)!\n");
++
+ }
+
+ I915_WRITE_FW(GEN8_MASTER_IRQ, GEN8_MASTER_IRQ_CONTROL);