drm/exynos: remove function exynos_drm_gem_map_buf

The exynos_drm_gem_map_buf can be merged in exynos_drm_gem_fault.

Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

1 files changed, 12 insertions, 24 deletions

diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.c b/drivers/gpu/drm/exynos/exynos_drm_gem.c
index 0c53b858bfec..4d9a09907607 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_gem.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_gem.c
@@ -53,25 +53,6 @@ static unsigned long roundup_gem_size(unsigned long size, unsigned int flags)
         return roundup(size, PAGE_SIZE);
 }
 
-static int exynos_drm_gem_map_buf(struct drm_gem_object *obj,
-                                        struct vm_area_struct *vma,
-                                        unsigned long f_vaddr,
-                                        pgoff_t page_offset)
-{
-        struct exynos_drm_gem_obj *exynos_gem_obj = to_exynos_gem_obj(obj);
-        struct exynos_drm_gem_buf *buf = exynos_gem_obj->buffer;
-        unsigned long pfn;
-
-        if (page_offset >= (buf->size >> PAGE_SHIFT)) {
-                DRM_ERROR("invalid page offset\n");
-                return -EINVAL;
-        }
-
-        pfn = page_to_pfn(buf->pages[page_offset]);
-
-        return vm_insert_mixed(vma, f_vaddr, pfn);
-}
-
 static int exynos_drm_gem_handle_create(struct drm_gem_object *obj,
                                         struct drm_file *file_priv,
                                         unsigned int *handle)
@@ -560,18 +541,25 @@ unlock:
 int exynos_drm_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
 {
         struct drm_gem_object *obj = vma->vm_private_data;
-        unsigned long f_vaddr;
+        struct exynos_drm_gem_obj *exynos_gem_obj = to_exynos_gem_obj(obj);
+        struct exynos_drm_gem_buf *buf = exynos_gem_obj->buffer;
+        unsigned long pfn;
         pgoff_t page_offset;
         int ret;
 
         page_offset = ((unsigned long)vmf->virtual_address -
                         vma->vm_start) >> PAGE_SHIFT;
-        f_vaddr = (unsigned long)vmf->virtual_address;
 
-        ret = exynos_drm_gem_map_buf(obj, vma, f_vaddr, page_offset);
-        if (ret < 0)
-                DRM_ERROR("failed to map a buffer with user.\n");
+        if (page_offset >= (buf->size >> PAGE_SHIFT)) {
+                DRM_ERROR("invalid page offset\n");
+                ret = -EINVAL;
+                goto out;
+        }
 
+        pfn = page_to_pfn(buf->pages[page_offset]);
+        ret = vm_insert_mixed(vma, (unsigned long)vmf->virtual_address, pfn);
+
+out:
         switch (ret) {
         case 0:
         case -ERESTARTSYS: