linux-kernel - Re: [PATCH 3.13 35/99] tty: Set correct tty name in active sysfs attribute

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Date:	Sat, 22 Feb 2014 19:23:42 -0500
From:	Ray Strode <halfline@...il.com>
To:	David Herrmann <dh.herrmann@...il.com>
Cc:	Hannes Reinecke <hare@...e.de>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Josh Boyer <jwboyer@...oraproject.org>,
	"Linux-Kernel@...r. Kernel. Org" <linux-kernel@...r.kernel.org>,
	"stable@...r.kernel.org" <stable@...r.kernel.org>,
	Lennart Poettering <lennart@...ttering.net>,
	Kay Sievers <kay@...y.org>, Jiri Slaby <jslaby@...e.cz>,
	Werner Fink <werner@...e.de>
Subject: Re: [PATCH 3.13 35/99] tty: Set correct tty name in active sysfs attribute

Hi,

(resending because my phone tried to send the reply as html mail and
it got rejected)

On Sat, Feb 22, 2014 at 9:27 AM, David Herrmann <dh.herrmann@...il.com> wrote:
> > How about this:
>
> +               driver = cs[i]->device(cs[i], &index);
> +                /* special case for tty0 which must not be resolved */
> +               if (driver && (index > 0 || cs[i]->major != TTY_MAJOR)) {
> +                       count += tty_line_name(driver, index, buf + count);
> +                       count += sprintf(buf + count, "%c", i ? ' ':'\n');
> +               } else
> +                       count += sprintf(buf + count, "%s%d%c",
> +                                        name, index, i ? ' ':'\n');
Assuming I'm reading the code correctly, I don't think that will work.
 Index will be rewritten from 0 to fg_console (which I suppose is
going to be 1) after the device vfunc is called.

--Ray
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