This is a note to let you know that I've just added the patch titled
fbdev: stifb: Fall back to cfb_fillrect() on 32-bit HCRX cards
to the 6.0-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
fbdev-stifb-fall-back-to-cfb_fillrect-on-32-bit-hcrx-cards.patch
and it can be found in the queue-6.0 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 776d875fd4cbb3884860ea7f63c3958f02b0c80e Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@xxxxxx>
Date: Fri, 14 Oct 2022 20:01:17 +0200
Subject: fbdev: stifb: Fall back to cfb_fillrect() on 32-bit HCRX cards
From: Helge Deller <deller@xxxxxx>
commit 776d875fd4cbb3884860ea7f63c3958f02b0c80e upstream.
When the text console is scrolling text upwards it calls the fillrect()
function to empty the new line. The current implementation doesn't seem
to work correctly on HCRX cards in 32-bit mode and leave garbage in that
line instead. Fix it by falling back to standard cfb_fillrect() in that
case.
Signed-off-by: Helge Deller <deller@xxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/video/fbdev/stifb.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/video/fbdev/stifb.c
+++ b/drivers/video/fbdev/stifb.c
@@ -1055,7 +1055,8 @@ stifb_fillrect(struct fb_info *info, con
{
struct stifb_info *fb = container_of(info, struct stifb_info, info);
- if (rect->rop != ROP_COPY)
+ if (rect->rop != ROP_COPY ||
+ (fb->id == S9000_ID_HCRX && fb->info.var.bits_per_pixel == 32))
return cfb_fillrect(info, rect);
SETUP_HW(fb);
Patches currently in stable-queue which might be from deller@xxxxxx are
queue-6.0/fbdev-smscufx-fix-several-use-after-free-bugs.patch
queue-6.0/fbdev-stifb-fall-back-to-cfb_fillrect-on-32-bit-hcrx-cards.patch
