gma500: Kill spare kref

We are using the underlying kref in the GEM object so we don't need our own

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/staging/gma500/psb_fb.c b/drivers/staging/gma500/psb_fb.c
index 988f4db..fb75aba 100644 (file)
--- a/drivers/staging/gma500/psb_fb.c
+++ b/drivers/staging/gma500/psb_fb.c
@@ -231,7 +231,6 @@ static int psbfb_mmap(struct fb_info *info, struct vm_area_struct *vma)
        struct psb_fbdev *fbdev = info->par;
        struct psb_framebuffer *psbfb = &fbdev->pfb;
        char *fb_screen_base = NULL;
-       struct drm_device *dev = psbfb->base.dev;
 
        if (vma->vm_pgoff != 0)
                return -EINVAL;

diff --git a/drivers/staging/gma500/psb_gtt.c b/drivers/staging/gma500/psb_gtt.c
index 54a9308..9da1375 100644 (file)
--- a/drivers/staging/gma500/psb_gtt.c
+++ b/drivers/staging/gma500/psb_gtt.c
@@ -303,8 +303,6 @@ struct gtt_range *psb_gtt_alloc_range(struct drm_device *dev, int len,
        gt->in_gart = backed;
        /* Ensure this is set for non GEM objects */
        gt->gem.dev = dev;
-       kref_init(&gt->kref);
-
        ret = allocate_resource(dev_priv->gtt_mem, &gt->resource,
                                len, start, end, PAGE_SIZE, NULL, NULL);
        if (ret == 0) {
@@ -316,18 +314,15 @@ struct gtt_range *psb_gtt_alloc_range(struct drm_device *dev, int len,
 }
 
 /**
- *     psb_gtt_destroy         -       final free up of a gtt
- *     @kref: the kref of the gtt
- *
- *     Called from the kernel kref put when the final reference to our
- *     GTT object is dropped. At that point we can free up the resources.
+ *     psb_gtt_free_range      -       release GTT address space
+ *     @dev: our DRM device
+ *     @gt: a mapping created with psb_gtt_alloc_range
  *
- *     For now we handle mmap clean up here to work around limits in GEM
+ *     Release a resource that was allocated with psb_gtt_alloc_range. If the object
+ *     has been pinned by mmap users we clean this up here currently.
  */
-static void psb_gtt_destroy(struct kref *kref)
+void psb_gtt_free_range(struct drm_device *dev, struct gtt_range *gt)
 {
-       struct gtt_range *gt = container_of(kref, struct gtt_range, kref);
-
        /* Undo the mmap pin if we are destroying the object */
        if (gt->mmapping) {
                psb_gtt_unpin(gt);
@@ -338,30 +333,6 @@ static void psb_gtt_destroy(struct kref *kref)
        kfree(gt);
 }
 
-/**
- *     psb_gtt_kref_put        -       drop reference to a GTT object
- *     @gt: the GT being dropped
- *
- *     Drop a reference to a psb gtt
- */
-void psb_gtt_kref_put(struct gtt_range *gt)
-{
-       kref_put(&gt->kref, psb_gtt_destroy);
-}
-
-/**
- *     psb_gtt_free_range      -       release GTT address space
- *     @dev: our DRM device
- *     @gt: a mapping created with psb_gtt_alloc_range
- *
- *     Release a resource that was allocated with psb_gtt_alloc_range
- */
-void psb_gtt_free_range(struct drm_device *dev, struct gtt_range *gt)
-{
-       psb_gtt_kref_put(gt);
-}
-
-
 struct psb_gtt *psb_gtt_alloc(struct drm_device *dev)
 {
        struct psb_gtt *tmp = kzalloc(sizeof(*tmp), GFP_KERNEL);

diff --git a/drivers/staging/gma500/psb_gtt.h b/drivers/staging/gma500/psb_gtt.h
index 7e1f21e..4d6dc5f 100644 (file)
--- a/drivers/staging/gma500/psb_gtt.h
+++ b/drivers/staging/gma500/psb_gtt.h
@@ -44,7 +44,6 @@ extern void psb_gtt_takedown(struct drm_device *dev);
 struct gtt_range {
        struct resource resource;       /* Resource for our allocation */
        u32 offset;                     /* GTT offset of our object */
-       struct kref kref;               /* Can probably go FIXME - GEM kref will do */
        struct drm_gem_object gem;      /* GEM high level stuff */
        int in_gart;                    /* Currently in the GART (ref ct) */
        bool stolen;                    /* Backed from stolen RAM */