Text mode VGA-console scrolling is broken in upstream & stable trees

[Jari Ruusu]

The patch that broke text mode VGA-console scrolling is this one:
"vgacon: Add check for vc_origin address range in vgacon_scroll()"
commit 864f9963ec6b4b76d104d595ba28110b87158003 upstream.

How to preproduce:
(1) boot a kernel that is configured to use text mode VGA-console
(2) type commands:  ls -l /usr/bin | less -S
(3) scroll up/down with cursor-down/up keys

Above mentioned patch seems to have landed in upstream and all
kernel.org stable trees with zero testing. Even minimal testing
would have shown that it breaks text mode VGA-console scrolling.

Greg, Sasha, Linus,
Please consider reverting that buggy patch from all affected trees.

--
Jari Ruusu  4096R/8132F189 12D6 4C3A DCDA 0AA4 27BD  ACDF F073 3C80 8132 F189