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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Geert Uytterhoeven , Kees Cook , Tony Luck , "Guilherme G. Piccoli" , Madhavan Srinivasan , Michael Ellerman , Nicholas Piggin , Christophe Leroy , Andreas Larsson , Alexander Shishkin , Maxime Coquelin , Alexandre Torgue , Jacky Huang , Shan-Chun Hung , Laurentiu Tudor , 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, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-fsdevel@vger.kernel.org Subject: Re: [PATCH 15/19] drivers: tty: serial: mux.c: Migrate to register_console_force helper Message-ID: References: <20251227-printk-cleanup-part3-v1-0-21a291bcf197@suse.com> <20251227-printk-cleanup-part3-v1-15-21a291bcf197@suse.com> Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline 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