From: Petr Mladek <pmladek@suse•com>
To: Marcos Paulo de Souza <mpdesouza@suse•com>
Cc: Richard Weinberger <richard@nod•at>,
Anton Ivanov <anton.ivanov@cambridgegreys•com>,
Johannes Berg <johannes@sipsolutions•net>,
Greg Kroah-Hartman <gregkh@linuxfoundation•org>,
Jason Wessel <jason.wessel@windriver•com>,
Daniel Thompson <danielt@kernel•org>,
Douglas Anderson <dianders@chromium•org>,
Steven Rostedt <rostedt@goodmis•org>,
John Ogness <john.ogness@linutronix•de>,
Sergey Senozhatsky <senozhatsky@chromium•org>,
Jiri Slaby <jirislaby@kernel•org>,
Breno Leitao <leitao@debian•org>,
Andrew Lunn <andrew+netdev@lunn•ch>,
"David S. Miller" <davem@davemloft•net>,
Eric Dumazet <edumazet@google•com>,
Jakub Kicinski <kuba@kernel•org>, Paolo Abeni <pabeni@redhat•com>,
Geert Uytterhoeven <geert@linux-m68k•org>,
Kees Cook <kees@kernel•org>, Tony Luck <tony.luck@intel•com>,
"Guilherme G. Piccoli" <gpiccoli@igalia•com>,
Madhavan Srinivasan <maddy@linux•ibm.com>,
Michael Ellerman <mpe@ellerman•id.au>,
Nicholas Piggin <npiggin@gmail•com>,
Christophe Leroy <christophe.leroy@csgroup•eu>,
Andreas Larsson <andreas@gaisler•com>,
Alexander Shishkin <alexander.shishkin@linux•intel.com>,
Maxime Coquelin <mcoquelin.stm32@gmail•com>,
Alexandre Torgue <alexandre.torgue@foss•st.com>,
Jacky Huang <ychuang3@nuvoton•com>,
Shan-Chun Hung <schung@nuvoton•com>,
Laurentiu Tudor <laurentiu.tudor@nxp•com>,
linux-um@lists•infradead.org, linux-kernel@vger•kernel.org,
kgdb-bugreport@lists•sourceforge.net,
linux-serial@vger•kernel.org, netdev@vger•kernel.org,
linux-m68k@lists•linux-m68k.org, linux-hardening@vger•kernel.org,
linuxppc-dev@lists•ozlabs.org, sparclinux@vger•kernel.org,
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linux-fsdevel@vger•kernel.org
Subject: Re: [PATCH 15/19] drivers: tty: serial: mux.c: Migrate to register_console_force helper
Date: Fri, 16 Jan 2026 10:59:57 +0100 [thread overview]
Message-ID: <aWoMHbbn-BmmbZMg@pathway.suse.cz> (raw)
In-Reply-To: <20251227-printk-cleanup-part3-v1-15-21a291bcf197@suse.com>
On Sat 2025-12-27 09:16:22, Marcos Paulo de Souza wrote:
> The register_console_force function was introduced to register consoles
> even on the presence of default consoles, replacing the CON_ENABLE flag
> that was forcing the same behavior.
>
> --- a/drivers/tty/serial/mux.c
> +++ b/drivers/tty/serial/mux.c
> @@ -390,7 +390,7 @@ static struct console mux_console = {
> .write = mux_console_write,
> .device = uart_console_device,
> .setup = mux_console_setup,
> - .flags = CON_ENABLED | CON_PRINTBUFFER,
> + .flags = CON_PRINTBUFFER,
> .index = 0,
> .data = &mux_driver,
> };
> @@ -547,7 +547,7 @@ static int __init mux_init(void)
> mod_timer(&mux_timer, jiffies + MUX_POLL_DELAY);
>
> #ifdef CONFIG_SERIAL_MUX_CONSOLE
> - register_console(&mux_console);
> + register_console_force(&mux_console);
The situation here is the same as in 16th patch for
ma35d1serial_console().
Also "mux_console" is assigned to
static int __init mux_probe(struct parisc_device *dev)
{
[...]
mux_driver.cons = MUX_CONSOLE;
status = uart_register_driver(&mux_driver);
[...]
status = uart_add_one_port(&mux_driver, port);
[...]
}
So, that it can get registered also by:
+ mux_probe()
+ uart_add_one_port()
+ serial_ctrl_register_port()
+ serial_core_register_port()
+ serial_core_add_one_port()
+ uart_configure_port()
+ register_console()
And we would need to pass the "force" information via CON_FORCE flag.
Best Regards,
Petr
next prev parent reply other threads:[~2026-01-16 10:00 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-12-27 12:16 [PATCH 00/19] printk cleanup - part 3 Marcos Paulo de Souza
2025-12-27 12:16 ` [PATCH 01/19] printk/nbcon: Use an enum to specify the required callback in console_is_usable() Marcos Paulo de Souza
2026-01-13 16:25 ` Petr Mladek
2026-01-30 15:31 ` John Ogness
2025-12-27 12:16 ` [PATCH 02/19] printk: Introduce console_is_nbcon Marcos Paulo de Souza
2026-01-13 17:37 ` Petr Mladek
2026-01-30 15:50 ` John Ogness
2025-12-27 12:16 ` [PATCH 03/19] printk: Drop flags argument from console_is_usable Marcos Paulo de Souza
2026-01-14 8:44 ` Petr Mladek
2025-12-27 12:16 ` [PATCH 04/19] printk: Reintroduce consoles_suspended global state Marcos Paulo de Souza
2026-01-14 13:12 ` Petr Mladek
2025-12-27 12:16 ` [PATCH 05/19] printk: Add more context to suspend/resume functions Marcos Paulo de Souza
2026-01-14 13:20 ` Petr Mladek
2026-01-30 17:27 ` John Ogness
2025-12-27 12:16 ` [PATCH 06/19] printk: Introduce register_console_force Marcos Paulo de Souza
2026-01-14 14:22 ` Petr Mladek
2025-12-27 12:16 ` [PATCH 07/19] drivers: netconsole: Migrate to register_console_force helper Marcos Paulo de Souza
2026-01-15 10:16 ` Petr Mladek
2025-12-27 12:16 ` [PATCH 08/19] debug: debug_core: " Marcos Paulo de Souza
2026-01-15 10:20 ` Petr Mladek
2025-12-27 12:16 ` [PATCH 09/19] m68k: emu: nfcon.c: " Marcos Paulo de Souza
2026-01-15 10:26 ` Petr Mladek
2025-12-27 12:16 ` [PATCH 10/19] fs: pstore: platform: " Marcos Paulo de Souza
2026-01-15 11:05 ` Petr Mladek
2025-12-27 12:16 ` [PATCH 11/19] powerpc: kernel: udbg: " Marcos Paulo de Souza
2026-01-15 12:13 ` Petr Mladek
2025-12-27 12:16 ` [PATCH 12/19] sparc: kernel: btext: " Marcos Paulo de Souza
2026-01-15 12:14 ` Petr Mladek
2025-12-27 12:16 ` [PATCH 13/19] um: drivers: mconsole_kern.c: " Marcos Paulo de Souza
2026-01-15 12:24 ` Petr Mladek
2025-12-27 12:16 ` [PATCH 14/19] drivers: hwtracing: stm: console.c: " Marcos Paulo de Souza
2026-01-15 12:29 ` Petr Mladek
2026-01-16 13:04 ` Alexander Shishkin
2026-01-16 13:54 ` Marcos Paulo de Souza
2025-12-27 12:16 ` [PATCH 15/19] drivers: tty: serial: mux.c: " Marcos Paulo de Souza
2026-01-16 9:59 ` Petr Mladek [this message]
2025-12-27 12:16 ` [PATCH 16/19] drivers: tty: serial: ma35d1_serial: " Marcos Paulo de Souza
2026-01-15 16:28 ` Petr Mladek
2025-12-27 12:16 ` [PATCH 17/19] drivers: tty: ehv_bytechan: " Marcos Paulo de Souza
2025-12-27 12:16 ` [PATCH 18/19] drivers: braille: console: Drop CON_ENABLED console flag Marcos Paulo de Souza
2025-12-27 12:16 ` [PATCH 19/19] printk: Remove CON_ENABLED flag Marcos Paulo de Souza
2026-01-05 12:52 ` [PATCH 00/19] printk cleanup - part 3 Daniel Thompson
2026-01-05 14:08 ` Daniel Thompson
2026-01-13 12:41 ` Marcos Paulo de Souza
2026-01-14 0:32 ` Marcos Paulo de Souza
2026-01-14 8:20 ` Petr Mladek
2026-01-14 16:38 ` Daniel Thompson
2026-01-07 10:22 ` Andreas Larsson
2026-01-12 17:53 ` Marcos Paulo de Souza
2026-02-20 11:43 ` Marcos Paulo de Souza
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