Patch "fbdev: stifb: Make the STI next font pointer a 32-bit signed offset" has been added to the 5.15-stable tree

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This is a note to let you know that I've just added the patch titled

    fbdev: stifb: Make the STI next font pointer a 32-bit signed offset

to the 5.15-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-make-the-sti-next-font-pointer-a-32-bit-.patch
and it can be found in the queue-5.15 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit c539321ecbf8b8022fc8dd5eb254b548696a427b
Author: Helge Deller <deller@xxxxxx>
Date:   Fri Oct 27 13:36:48 2023 +0200

    fbdev: stifb: Make the STI next font pointer a 32-bit signed offset
    
    [ Upstream commit 8a32aa17c1cd48df1ddaa78e45abcb8c7a2220d6 ]
    
    The pointer to the next STI font is actually a signed 32-bit
    offset. With this change the 64-bit kernel will correctly subract
    the (signed 32-bit) offset instead of adding a (unsigned 32-bit)
    offset. It has no effect on 32-bit kernels.
    
    This fixes the stifb driver with a 64-bit kernel on qemu.
    
    Signed-off-by: Helge Deller <deller@xxxxxx>
    Cc: stable@xxxxxxxxxxxxxxx
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/video/fbdev/sticore.h b/drivers/video/fbdev/sticore.h
index 0ebdd28a0b813..d83ab3ded5f3d 100644
--- a/drivers/video/fbdev/sticore.h
+++ b/drivers/video/fbdev/sticore.h
@@ -231,7 +231,7 @@ struct sti_rom_font {
 	 u8 height;
 	 u8 font_type;		/* language type */
 	 u8 bytes_per_char;
-	u32 next_font;
+	s32 next_font;		/* note: signed int */
 	 u8 underline_height;
 	 u8 underline_pos;
 	 u8 res008[2];



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