[PATCH 11/11] drm/i915: Clarify mmio_flip_lock locking

[Daniel Vetter]

The ->queue_flip callback is always called from process context, so
plain _irq spinlock variants are enough.

Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>
---
 drivers/gpu/drm/i915/intel_display.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c 
b/drivers/gpu/drm/i915/intel_display.c
index c01d783e59b1..a8632f6937ce 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -9849,7 +9849,6 @@ static int intel_queue_mmio_flip(struct drm_device *dev,
 {
        struct drm_i915_private *dev_priv = dev->dev_private;
        struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
-       unsigned long irq_flags;
        int ret;

        if (WARN_ON(intel_crtc->mmio_flip.seqno))
@@ -9863,10 +9862,10 @@ static int intel_queue_mmio_flip(struct drm_device *dev,
                return 0;
        }

-       spin_lock_irqsave(&dev_priv->mmio_flip_lock, irq_flags);
+       spin_lock_irq(&dev_priv->mmio_flip_lock);
        intel_crtc->mmio_flip.seqno = obj->last_write_seqno;
        intel_crtc->mmio_flip.ring_id = obj->ring->id;
-       spin_unlock_irqrestore(&dev_priv->mmio_flip_lock, irq_flags);
+       spin_unlock_irq(&dev_priv->mmio_flip_lock);

        /*
         * Double check to catch cases where irq fired before
-- 
1.9.3