linux-kernel - Re: [PATCH] vt: add init_hide parameter to suppress boot output

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Message-ID: <512370AD.6040901@suse.cz>
Date:	Tue, 19 Feb 2013 13:31:41 +0100
From:	Jiri Slaby <jslaby@...e.cz>
To:	"Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Jiri Slaby <jslaby@...e.cz>
CC:	Pavel Machek <pavel@....cz>, "Rafael J. Wysocki" <rjw@...k.pl>,
	Len Brown <len.brown@...el.com>, linux-kernel@...r.kernel.org,
	linux-pm@...r.kernel.org, Andy Ross <andy.ross@...driver.com>
Subject: Re: [PATCH] vt: add init_hide parameter to suppress boot output

On 02/19/2013 10:38 AM, Kirill A. Shutemov wrote:
> From: Andy Ross <andy.ross@...driver.com>
> 
> When vt.init_hide=1 is set, suppress output on newly created consoles
> until an affirmative switched to that console.  This prevents boot
> output from displaying (and clobbering splash screens, etc...) without
> disabling the console entirely.
> 
> Signed-off-by: Andy Ross <andy.ross@...driver.com>
> Signed-off-by: Kirill A. Shutemov <kirill.shutemov@...ux.intel.com>
> ---
>  drivers/tty/vt/vt.c            |    7 +++++++
>  include/linux/console_struct.h |    3 ++-
>  include/linux/vt.h             |    2 ++
>  kernel/power/console.c         |    2 --
>  4 files changed, 11 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
> index 8fd8968..3966ff5 100644
> --- a/drivers/tty/vt/vt.c
> +++ b/drivers/tty/vt/vt.c
> @@ -165,6 +165,9 @@ module_param(global_cursor_default, int, S_IRUGO | S_IWUSR);
>  static int cur_default = CUR_DEFAULT;
>  module_param(cur_default, int, S_IRUGO | S_IWUSR);
>  
> +static int init_hide;
> +module_param(init_hide, int, S_IRUGO);

So this should actually be a bool, right? Could you change that
appropriately?

thanks,
-- 
js
suse labs
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