diff mbox series

[4/8] drm/client: Use actual bpp when allocating frame buffers

Message ID 20220215165226.2738568-5-geert@linux-m68k.org
State Superseded
Headers show
Series drm: Add support for low-color frame buffer formats | expand

Commit Message

Geert Uytterhoeven Feb. 15, 2022, 4:52 p.m. UTC 
When allocating a frame buffer, the number of bits per pixel needed is
derived from the deprecated drm_format_info.cpp[] field.  While this
works for formats using less than 8 bits per pixel, it does lead to a
large overallocation.

Reduce memory consumption by using the actual number of bits per pixel
instead.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
---
 drivers/gpu/drm/drm_client.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/drm_client.c b/drivers/gpu/drm/drm_client.c
index ce45e380f4a2028f..c6a279e3de95591a 100644
--- a/drivers/gpu/drm/drm_client.c
+++ b/drivers/gpu/drm/drm_client.c
@@ -264,7 +264,7 @@  drm_client_buffer_create(struct drm_client_dev *client, u32 width, u32 height, u
 
 	dumb_args.width = width;
 	dumb_args.height = height;
-	dumb_args.bpp = info->cpp[0] * 8;
+	dumb_args.bpp = drm_format_info_bpp(info, 0);
 	ret = drm_mode_create_dumb(dev, &dumb_args, client->file);
 	if (ret)
 		goto err_delete;
@@ -372,7 +372,7 @@  static int drm_client_buffer_addfb(struct drm_client_buffer *buffer,
 	int ret;
 
 	info = drm_format_info(format);
-	fb_req.bpp = info->cpp[0] * 8;
+	fb_req.bpp = drm_format_info_bpp(info, 0);
 	fb_req.depth = info->depth;
 	fb_req.width = width;
 	fb_req.height = height;