From: Jani Nikula <jani.nik...@intel.com>

3.4.110-rc1 review patch.  If anyone has any objections, please let me know.

------------------


commit 245ec9d85696c3e539b23e210f248698b478379c upstream.

This reverts commit 0aedb1626566efd72b369c01992ee7413c82a0c5.

I messed things up while applying [1] to drm-intel-fixes. Rectify.

[1] 
http://mid.gmane.org/1432827156-9605-1-git-send-email-ville.syrj...@linux.intel.com

Fixes: 0aedb1626566 ("drm/i915: Don't skip request retirement if the active 
list is empty")
Acked-by: Ville Syrjälä <ville.syrj...@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nik...@intel.com>
[lizf: Backported to 3.4: adjust context]
Signed-off-by: Zefan Li <lize...@huawei.com>
---
 drivers/gpu/drm/i915/i915_gem.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index e1c744d..b1f1d10 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -1779,6 +1779,9 @@ i915_gem_retire_requests_ring(struct intel_ring_buffer 
*ring)
        uint32_t seqno;
        int i;
 
+       if (list_empty(&ring->request_list))
+               return;
+
        WARN_ON(i915_verify_lists(ring->dev));
 
        seqno = ring->get_seqno(ring);
-- 
1.9.1

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