linux-kernel - [PATCH v2 0/4] tty/vt: fix various 512 glyph font issues

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Message-Id: <20250901052636.8981-1-soci@c64.rulez.org>
Date: Mon,  1 Sep 2025 07:26:32 +0200
From: Zsolt Kajtar <soci@....rulez.org>
To: linux-serial@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	gregkh@...uxfoundation.org,
	jirislaby@...nel.org
Cc: Zsolt Kajtar <soci@....rulez.org>
Subject: [PATCH v2 0/4] tty/vt: fix various 512 glyph font issues

Having the 8th bit of a glyph in the attribute byte is tricky business.
These patches fix most of the cases where it went wrong in the VT code.
What remains is related to fbcon as well and so not part of this series.

This run fixes concerns raised on review and adds one more patch for a
problem which doesn't cause visible effects.

These patches were prepared to apply on tty-next.

Zsolt Kajtar (4):
  tty/vt: 8th bit location in vc_uniscr routines
  tty/vt: Prevent 8th bit corruption with soft cursor
  tty/vt: Fix unreadable kernel messages on vgacon
  tty/vt: use correct attribute mask in do_update_region

 drivers/tty/vt/vt.c | 40 ++++++++++++++++++++++++++--------------
 1 file changed, 26 insertions(+), 14 deletions(-)

-- 
2.30.2