linux-kernel - Re: [PATCH v5 3/3] serial: core: Fix serial core controller port name to show controller id

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Fri, 4 Aug 2023 07:20:45 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Guenter Roeck <linux@...ck-us.net>
Cc:     Tony Lindgren <tony@...mide.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jirislaby@...nel.org>, Dhruva Gole <d-gole@...com>,
        Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
        John Ogness <john.ogness@...utronix.de>,
        Johan Hovold <johan@...nel.org>,
        Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
        Vignesh Raghavendra <vigneshr@...com>,
        linux-kernel@...r.kernel.org, linux-serial@...r.kernel.org
Subject: Re: [PATCH v5 3/3] serial: core: Fix serial core controller port
 name to show controller id

On Thu, Aug 03, 2023 at 03:18:42PM -0700, Guenter Roeck wrote:
> On Tue, Jul 25, 2023 at 08:42:12AM +0300, Tony Lindgren wrote:
> > We are missing the serial core controller id for the serial core port
> > name. Let's fix the issue for sane sysfs output, and to avoid issues
> > addressing serial ports later on.
> > 
> > And as we're now showing the controller id, the "ctrl" and "port" prefix
> > for the DEVNAME become useless, we can just drop them. Let's standardize on
> > DEVNAME:0 for controller name, where 0 is the controller id. And
> > DEVNAME:0.0 for port name, where 0.0 are the controller id and port id.
> > 
> > This makes the sysfs output nicer, on qemu for example:
> > 
> > $ ls /sys/bus/serial-base/devices
> > 00:04:0         serial8250:0    serial8250:0.2
> > 00:04:0.0       serial8250:0.1  serial8250:0.3
> > 
> > Fixes: 84a9582fd203 ("serial: core: Start managing serial controllers to enable runtime PM")
> > Reported-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
> > Reviewed-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
> > Signed-off-by: Tony Lindgren <tony@...mide.com>
> 
> This patch causes about 50% of my boot tests to fail because the console
> is no longer recognized. Reverting this patch fixes the problem.
> Bisect log attached.

Isn't fix already available?
7d695d83767c ("serial: core: Fix serial_base_match() after fixing controller port name")

(in tty/tty-linus)

-- 
With Best Regards,
Andy Shevchenko