Merge branch 'drm-vmwgfx-next' of git://people.freedesktop.org/~syeh/repos_linux into drm-next

This is to address what we've discussed, moving some of the minor changes
into a drm-next request.

* 'drm-vmwgfx-next' of git://people.freedesktop.org/~syeh/repos_linux:
  drm/vmwgfx: Use kmemdup instead of kmalloc and memcpy
  drm/vmwgfx: Fix depth input into drm_mode_legacy_fb_format
  drm/vmwgfx: Fix a potential integer overflow
  drm/vmwgfx: Clear an uninitialized struct member
  drm/vmwgfx: Annotate ignored return values
  drm/vmwgfx: Clear uninitialized fields of a parameter

drivers/gpu/drm/vmwgfx/device_include/svga3d_surfacedefs.h

@@ -980,6 +980,8 @@ svga3dsurface_get_mip_size(surf_size_struct base_level, u32 mip_level)
 	size.width = max_t(u32, base_level.width >> mip_level, 1);
 	size.height = max_t(u32, base_level.height >> mip_level, 1);
 	size.depth = max_t(u32, base_level.depth >> mip_level, 1);
+	size.pad64 = 0;
+
 	return size;
 }
 

drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c

@@ -840,7 +840,7 @@ static void vmw_move_notify(struct ttm_buffer_object *bo,
  */
 static void vmw_swap_notify(struct ttm_buffer_object *bo)
 {
-	ttm_bo_wait(bo, false, false);
+	(void) ttm_bo_wait(bo, false, false);
 }
 
 

drivers/gpu/drm/vmwgfx/vmwgfx_drv.c

@@ -1293,7 +1293,7 @@ static void __vmw_svga_enable(struct vmw_private *dev_priv)
  */
 void vmw_svga_enable(struct vmw_private *dev_priv)
 {
-	ttm_read_lock(&dev_priv->reservation_sem, false);
+	(void) ttm_read_lock(&dev_priv->reservation_sem, false);
 	__vmw_svga_enable(dev_priv);
 	ttm_read_unlock(&dev_priv->reservation_sem);
 }

drivers/gpu/drm/vmwgfx/vmwgfx_fb.c

@@ -482,8 +482,7 @@ static int vmw_fb_kms_framebuffer(struct fb_info *info)
 	mode_cmd.height = var->yres;
 	mode_cmd.pitches[0] = ((var->bits_per_pixel + 7) / 8) * mode_cmd.width;
 	mode_cmd.pixel_format =
-		drm_mode_legacy_fb_format(var->bits_per_pixel,
-			((var->bits_per_pixel + 7) / 8) * mode_cmd.width);
+		drm_mode_legacy_fb_format(var->bits_per_pixel, depth);
 
 	cur_fb = par->set_fb;
 	if (cur_fb && cur_fb->width == mode_cmd.width &&

drivers/gpu/drm/vmwgfx/vmwgfx_kms.c

@@ -757,7 +757,7 @@ static int vmw_create_dmabuf_proxy(struct drm_device *dev,
 				   struct vmw_surface **srf_out)
 {
 	uint32_t format;
-	struct drm_vmw_size content_base_size;
+	struct drm_vmw_size content_base_size = {0};
 	struct vmw_resource *res;
 	unsigned int bytes_pp;
 	struct drm_format_name_buf format_name;
@@ -1671,7 +1671,7 @@ int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data,
 		 *	1. Bounding box (assuming 32bpp) must be < prim_bb_mem
 		 *      2. Total pixels (assuming 32bpp) must be < prim_bb_mem
 		 */
-		u64 bb_mem    = bounding_box.w * bounding_box.h * 4;
+		u64 bb_mem    = (u64) bounding_box.w * bounding_box.h * 4;
 		u64 pixel_mem = total_pixels * 4;
 
 		if (bb_mem > dev_priv->prim_bb_mem) {

drivers/gpu/drm/vmwgfx/vmwgfx_mob.c

@@ -319,18 +319,17 @@ int vmw_otables_setup(struct vmw_private *dev_priv)
 	int ret;
 
 	if (dev_priv->has_dx) {
-		*otables = kmalloc(sizeof(dx_tables), GFP_KERNEL);
+		*otables = kmemdup(dx_tables, sizeof(dx_tables), GFP_KERNEL);
 		if (*otables == NULL)
 			return -ENOMEM;
 
-		memcpy(*otables, dx_tables, sizeof(dx_tables));
 		dev_priv->otable_batch.num_otables = ARRAY_SIZE(dx_tables);
 	} else {
-		*otables = kmalloc(sizeof(pre_dx_tables), GFP_KERNEL);
+		*otables = kmemdup(pre_dx_tables, sizeof(pre_dx_tables),
+				   GFP_KERNEL);
 		if (*otables == NULL)
 			return -ENOMEM;
 
-		memcpy(*otables, pre_dx_tables, sizeof(pre_dx_tables));
 		dev_priv->otable_batch.num_otables = ARRAY_SIZE(pre_dx_tables);
 	}
 

drivers/gpu/drm/vmwgfx/vmwgfx_resource.c

@@ -1760,7 +1760,7 @@ void vmw_resource_unpin(struct vmw_resource *res)
 	struct vmw_private *dev_priv = res->dev_priv;
 	int ret;
 
-	ttm_read_lock(&dev_priv->reservation_sem, false);
+	(void) ttm_read_lock(&dev_priv->reservation_sem, false);
 	mutex_lock(&dev_priv->cmdbuf_mutex);
 
 	ret = vmw_resource_reserve(res, false, true);
@@ -1770,7 +1770,7 @@ void vmw_resource_unpin(struct vmw_resource *res)
 	if (--res->pin_count == 0 && res->backup) {
 		struct vmw_dma_buffer *vbo = res->backup;
 
-		ttm_bo_reserve(&vbo->base, false, false, NULL);
+		(void) ttm_bo_reserve(&vbo->base, false, false, NULL);
 		vmw_bo_pin_reserved(vbo, false);
 		ttm_bo_unreserve(&vbo->base);
 	}