linux-kernel - Re: [PATCH 2/5] console: console handover to preferred console

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Message-Id: <20070531170200.3738f834.akpm@linux-foundation.org>
Date:	Thu, 31 May 2007 17:02:00 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Yinghai Lu <Yinghai.Lu@....COM>
Cc:	Andi Kleen <ak@...e.de>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/5] console: console handover to preferred console

On Thu, 31 May 2007 13:58:26 -0700
Yinghai Lu <Yinghai.Lu@....COM> wrote:

> [PATCH 2/5] console: console handover to preferred console
> 
> Signed-off-by: Yinghai Lu <yinghai.lu@....com>
> 
> diff --git a/kernel/printk.c b/kernel/printk.c
> index 0bbdeac..7b96cae 100644
> --- a/kernel/printk.c
> +++ b/kernel/printk.c
> @@ -985,12 +1007,15 @@ void register_console(struct console *console)
>  	if (!(console->flags & CON_ENABLED))
>  		return;
>  
> -	if (bootconsole) {
> +	if (bootconsole && (console->flags & CON_CONSDEV)) {
>  		printk(KERN_INFO "console handover: boot [%s%d] -> real [%s%d]\n",
>  		       bootconsole->name, bootconsole->index,
>  		       console->name, console->index);
>  		unregister_console(bootconsole);
>  		console->flags &= ~CON_PRINTBUFFER;
> +	} else {
> +		printk(KERN_INFO "console [%s%d] enabled\n",
> +		       console->name, console->index);
>  	}
>  
>  	/*

What does this change do, and what is the reason for it??
-
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