All of lore.kernel.org
 help / color / mirror / Atom feed
From: Linus Torvalds <torvalds@linux-foundation.org>
To: Petr Mladek <pmladek@suse.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
	Steven Rostedt <rostedt@goodmis.org>,
	John Ogness <john.ogness@linutronix.de>,
	Guenter Roeck <linux@roeck-us.net>,
	Shreyas Joshi <shreyas.joshi@biamp.com>,
	shreyasjoshi15@gmail.com,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [RFC 1/2] printk: Add kernel parameter: mute_console
Date: Fri, 23 Oct 2020 08:59:17 -0700	[thread overview]
Message-ID: <CAHk-=wif0QueN8ovkm_x7TsOgOHjRrOa4wU-zHgBP=FTAnzvNA@mail.gmail.com> (raw)
In-Reply-To: <20201022114228.9098-2-pmladek@suse.com>

On Thu, Oct 22, 2020 at 4:42 AM Petr Mladek <pmladek@suse.com> wrote:
>
> Users use various undocumented ways how to completely disable
> console output. It is usually done by passing an invalid console
> name, for example, console="", console=null.
>
> It mostly works but just by chance.

Honestly, since that 'console=""' seems to be out in the wild, I think
we might as well just (a) document it, and (b) make sure it works by
more than chance.

That said, I also like John Ogness' suggestion to have it as a
per-console option to mute a particular console. At least that seems
like a perfectly fine extension.

I don't really see the point of a whole new "mute_console" option,
considering that people already figured out an alternate way to do it
that we'd have to support going forward anyway. Just make that the
standard.

             Linus

  parent reply	other threads:[~2020-10-23 15:59 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-22 11:42 [RFC 0/2] printk: Official way to mute consoles Petr Mladek
2020-10-22 11:42 ` [RFC 1/2] printk: Add kernel parameter: mute_console Petr Mladek
2020-10-22 13:10   ` John Ogness
2020-10-22 14:15     ` Guenter Roeck
2020-10-22 14:53       ` John Ogness
2020-10-23 11:49         ` Petr Mladek
2020-10-23 14:52           ` Guenter Roeck
2020-10-22 13:45   ` Steven Rostedt
2020-10-22 14:22     ` Guenter Roeck
2020-10-23  9:46     ` Petr Mladek
2020-10-23  0:33   ` Sergey Senozhatsky
2020-10-23 12:11     ` Petr Mladek
2020-10-23 15:59   ` Linus Torvalds [this message]
2020-10-22 11:42 ` RFC 2/2] printk: Restore and document obsolete ways to disable console output Petr Mladek
2020-10-22 14:23   ` Guenter Roeck

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to='CAHk-=wif0QueN8ovkm_x7TsOgOHjRrOa4wU-zHgBP=FTAnzvNA@mail.gmail.com' \
    --to=torvalds@linux-foundation.org \
    --cc=gregkh@linuxfoundation.org \
    --cc=john.ogness@linutronix.de \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux@roeck-us.net \
    --cc=pmladek@suse.com \
    --cc=rostedt@goodmis.org \
    --cc=sergey.senozhatsky.work@gmail.com \
    --cc=sergey.senozhatsky@gmail.com \
    --cc=shreyas.joshi@biamp.com \
    --cc=shreyasjoshi15@gmail.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.