linux-kernel - [PATCH 0/3] Add back DEVNAME:0.0 console handling

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Message-ID: <20240703100615.118762-1-tony.lindgren@linux.intel.com>
Date: Wed,  3 Jul 2024 13:06:07 +0300
From: Tony Lindgren <tony.lindgren@...ux.intel.com>
To: Jonathan Corbet <corbet@....net>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Jiri Slaby <jirislaby@...nel.org>,
	Petr Mladek <pmladek@...e.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	John Ogness <john.ogness@...utronix.de>,
	Sergey Senozhatsky <senozhatsky@...omium.org>
Cc: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
	linux-serial@...r.kernel.org,
	Tony Lindgren <tony.lindgren@...ux.intel.com>,
	Dhruva Gole <d-gole@...com>,
	Sebastian Reichel <sre@...nel.org>,
	linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 0/3] Add back DEVNAME:0.0 console handling

Hi all,

Here are the changes to add back the DEVNAME:0.0 style kernel command
line console handling.

The earlier attempt to add DEVNAME:0.0 style console handling caused a
regression to the kernel command line console ordering, and we reverted
the whole series. The fixes would have been too intrusive for the
v6.10-rc series as discussed in [0] below.

These patches are based on v6.10-rc6, and essentially the same as in [0].
Because of the rebase, I've left out Petr's Reviewed-by and Tested-by tags.

Compared to the original DEVNAME:0.0 patch series [1], things are much
simplified. We now have rewritten the printk deferred console handling
thanks to Petr, and have renamed the serial functions accordingly. And as
we are not deferring ttyS named consoles, the serial core console quirk
handling been been left out.

Regards,

Tony

[0] https://lore.kernel.org/linux-serial/20240620124541.164931-1-tony.lindgren@linux.intel.com/
[1] https://lore.kernel.org/linux-serial/20240327110021.59793-1-tony@atomide.com/

Tony Lindgren (3):
  printk: Add match_devname_and_update_preferred_console()
  serial: core: Add serial_base_match_and_update_preferred_console()
  Documentation: kernel-parameters: Add DEVNAME:0.0 format for serial
    ports

 .../admin-guide/kernel-parameters.txt         |  19 ++++
 drivers/tty/serial/serial_base.h              |  16 +++
 drivers/tty/serial/serial_base_bus.c          |  37 +++++++
 drivers/tty/serial/serial_core.c              |   4 +
 include/linux/printk.h                        |   4 +
 kernel/printk/console_cmdline.h               |   1 +
 kernel/printk/printk.c                        | 103 +++++++++++++++---
 7 files changed, 169 insertions(+), 15 deletions(-)

base-commit: 22a40d14b572deb80c0648557f4bd502d7e83826
-- 
2.45.2