linux-kernel - [PATCH v2 0/4] printk cleanup

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Message-Id: <20251121-printk-cleanup-part2-v2-0-57b8b78647f4@suse.com>
Date: Fri, 21 Nov 2025 15:50:32 -0300
From: Marcos Paulo de Souza <mpdesouza@...e.com>
To: Petr Mladek <pmladek@...e.com>, Steven Rostedt <rostedt@...dmis.org>, 
 John Ogness <john.ogness@...utronix.de>, 
 Sergey Senozhatsky <senozhatsky@...omium.org>, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 Jiri Slaby <jirislaby@...nel.org>, 
 Jason Wessel <jason.wessel@...driver.com>, 
 Daniel Thompson <danielt@...nel.org>, 
 Douglas Anderson <dianders@...omium.org>, 
 Richard Weinberger <richard@....at>, 
 Anton Ivanov <anton.ivanov@...bridgegreys.com>, 
 Johannes Berg <johannes@...solutions.net>
Cc: linux-kernel@...r.kernel.org, linux-serial@...r.kernel.org, 
 kgdb-bugreport@...ts.sourceforge.net, linux-um@...ts.infradead.org, 
 Marcos Paulo de Souza <mpdesouza@...e.com>
Subject: [PATCH v2 0/4] printk cleanup - part 2

The first part can be found here[1]. The proposed changes do not
change the functionality of printk, but were suggestions made by
Petr Mladek. I already have more patches for a part 3 ,but I would like
to see these ones merged first.

I did the testing with VMs, checking suspend and resume cycles, and it worked
as expected.

Thanks for reviewing!

[1]: https://lore.kernel.org/lkml/20250226-printk-renaming-v1-0-0b878577f2e6@suse.com/

Signed-off-by: Marcos Paulo de Souza <mpdesouza@...e.com>
---
Changes in v2:
- Squashed patches 1 and 3 (CON_SUSPEND usage) and now is the last patch
  of the series, suggested by Petr Mladek
- Moved commit 4 as the first one in the series, and it was changed to
  use console_is_usable helper, suggested by Petr Mladek
- Moved commit 5 as the second commit in the series, and adjusted to use
  console_is_usable helper, suggested by Petr Mladek
- The patch 6 was dropped, since it was implemented in a different patchset
  (https://lore.kernel.org/lkml/20250902-nbcon-kgdboc-v3-0-cd30a8106f1c@suse.com/)
- Patch 7 was moved as third patch, and is using the console_is_usable,
  suggested by Petr Mladek
- Patch 2 was dropped from this patchset, and will be included in the
  next cleanup patchset.
- Link to v1: https://lore.kernel.org/r/20250606-printk-cleanup-part2-v1-0-f427c743dda0@suse.com

---
Marcos Paulo de Souza (4):
      drivers: serial: kgdboc: Drop checks for CON_ENABLED and CON_BOOT
      arch: um: kmsg_dump: Use console_is_usable
      printk: Use console_is_usable on console_unblank
      printk: Make console_{suspend,resume} handle CON_SUSPENDED

 arch/um/kernel/kmsg_dump.c  |  2 +-
 drivers/tty/serial/kgdboc.c |  1 -
 drivers/tty/tty_io.c        |  2 +-
 kernel/printk/printk.c      | 17 +++++++----------
 4 files changed, 9 insertions(+), 13 deletions(-)
---
base-commit: 887c7f05d40eb51ba3f38fd71d5e6b4aff4bb8a2
change-id: 20250601-printk-cleanup-part2-38f8d5108099

Best regards,
--  
Marcos Paulo de Souza <mpdesouza@...e.com>