On 28. 10. 20, 17:06, Daniel Vetter wrote:
So ever since syzbot discovered fbcon, we have solid proof that it's
full of bugs. And often the solution is to just delete code and remove
features, e.g. 50145474f6ef ("fbcon: remove soft scrollback code").
...
--- a/drivers/video/fbdev/core/fbcon.c
+++ b/drivers/video/fbdev/core/fbcon.c
@@ -1147,11 +1147,13 @@ static void fbcon_init(struct vc_data *vc, int init)
ops->graphics = 0;
- if ((cap & FBINFO_HWACCEL_COPYAREA) &&
- !(cap & FBINFO_HWACCEL_DISABLED))
- p->scrollmode = SCROLL_MOVE;
- else /* default to something safe */
- p->scrollmode = SCROLL_REDRAW;
+ /*
+ * No more hw acceleration for fbcon.
+ *
+ * FIXME: Garabge collect all the now dead code after sufficient time
If you go this non-invasive path, then only a nit here: "Garbage"
thanks,
--
js
suse labs
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