drm/i915: i915_gem_alloc_context_obj can be static

It has only one call site from the same file.

v2: Also rename it to alloc_context_obj. (Chris Wilson)
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/1479898155-21014-1-git-send-email-tvrtko.ursulin@linux.intel.com

drivers/gpu/drm/i915/i915_drv.h

@@ -3342,8 +3342,6 @@ struct i915_vma *
 i915_gem_context_pin_legacy(struct i915_gem_context *ctx,
 			    unsigned int flags);
 void i915_gem_context_free(struct kref *ctx_ref);
-struct drm_i915_gem_object *
-i915_gem_alloc_context_obj(struct drm_device *dev, size_t size);
 struct i915_gem_context *
 i915_gem_context_create_gvt(struct drm_device *dev);
 

drivers/gpu/drm/i915/i915_gem_context.c

@@ -166,8 +166,8 @@ void i915_gem_context_free(struct kref *ctx_ref)
 	kfree(ctx);
 }
 
-struct drm_i915_gem_object *
-i915_gem_alloc_context_obj(struct drm_device *dev, size_t size)
+static struct drm_i915_gem_object *
+alloc_context_obj(struct drm_device *dev, u64 size)
 {
 	struct drm_i915_gem_object *obj;
 	int ret;
@@ -286,8 +286,7 @@ __create_hw_context(struct drm_device *dev,
 		struct drm_i915_gem_object *obj;
 		struct i915_vma *vma;
 
-		obj = i915_gem_alloc_context_obj(dev,
-						 dev_priv->hw_context_size);
+		obj = alloc_context_obj(dev, dev_priv->hw_context_size);
 		if (IS_ERR(obj)) {
 			ret = PTR_ERR(obj);
 			goto err_out;