diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index 315326d..c52e16f 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -1902,7 +1902,7 @@
  *   - dev_priv->fmax
  *   - dev_priv->gpu_busy
  */
-DEFINE_SPINLOCK(mchdev_lock);
+static DEFINE_SPINLOCK(mchdev_lock);
 
 /**
  * i915_read_mch_val - return value for IPS use
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index b6e4b60..e0b7ddc 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -4635,8 +4635,8 @@
  * Create a physically contiguous memory object for this object
  * e.g. for cursor + overlay regs
  */
-int i915_gem_init_phys_object(struct drm_device *dev,
-			      int id, int size, int align)
+static int i915_gem_init_phys_object(struct drm_device *dev,
+				     int id, int size, int align)
 {
 	drm_i915_private_t *dev_priv = dev->dev_private;
 	struct drm_i915_gem_phys_object *phys_obj;
@@ -4668,7 +4668,7 @@
 	return ret;
 }
 
-void i915_gem_free_phys_object(struct drm_device *dev, int id)
+static void i915_gem_free_phys_object(struct drm_device *dev, int id)
 {
 	drm_i915_private_t *dev_priv = dev->dev_private;
 	struct drm_i915_gem_phys_object *phys_obj;
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 080ea3b..29215b6 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -85,7 +85,7 @@
 }
 
 /* For display hotplug interrupt */
-void
+static void
 ironlake_enable_display_irq(drm_i915_private_t *dev_priv, u32 mask)
 {
 	if ((dev_priv->irq_mask_reg & mask) != 0) {
@@ -305,7 +305,7 @@
 	return;
 }
 
-irqreturn_t ironlake_irq_handler(struct drm_device *dev)
+static irqreturn_t ironlake_irq_handler(struct drm_device *dev)
 {
 	drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
 	int ret = IRQ_NONE;
@@ -1315,7 +1315,7 @@
 	return -EINVAL;
 }
 
-struct drm_i915_gem_request *
+static struct drm_i915_gem_request *
 i915_get_tail_request(struct drm_device *dev)
 {
 	drm_i915_private_t *dev_priv = dev->dev_private;
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 3449a3b..eb6e676 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -1513,7 +1513,7 @@
 	.destroy = intel_dp_encoder_destroy,
 };
 
-void
+static void
 intel_dp_hot_plug(struct intel_encoder *intel_encoder)
 {
 	struct intel_dp *intel_dp = container_of(intel_encoder, struct intel_dp, base);
diff --git a/drivers/gpu/drm/i915/intel_fb.c b/drivers/gpu/drm/i915/intel_fb.c
index 7bdc962..42f8a51 100644
--- a/drivers/gpu/drm/i915/intel_fb.c
+++ b/drivers/gpu/drm/i915/intel_fb.c
@@ -219,8 +219,8 @@
 	.fb_probe = intel_fb_find_or_create_single,
 };
 
-int intel_fbdev_destroy(struct drm_device *dev,
-			struct intel_fbdev *ifbdev)
+static int intel_fbdev_destroy(struct drm_device *dev,
+			       struct intel_fbdev *ifbdev)
 {
 	struct fb_info *info;
 	struct intel_framebuffer *ifb = &ifbdev->ifb;