netdev - Re: [PATCH 3/3] printk: implement support for extended console drivers

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Message-ID: <20150629161355.GS15805@mtj.duckdns.org>
Date:	Mon, 29 Jun 2015 12:13:55 -0400
From:	Tejun Heo <tj@...nel.org>
To:	Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:	pmladek@...e.cz, Andrew Morton <akpm@...ux-foundation.org>,
	"David S. Miller" <davem@...emloft.net>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	Kay Sievers <kay@...y.org>,
	Josh Triplett <josh@...htriplett.org>,
	Linux Embedded <linux-embedded@...r.kernel.org>
Subject: Re: [PATCH 3/3] printk: implement support for extended console
 drivers

On Mon, Jun 29, 2015 at 06:11:40PM +0200, Geert Uytterhoeven wrote:
> On Mon, Jun 29, 2015 at 5:49 PM, Tejun Heo <tj@...nel.org> wrote:
> > On Mon, Jun 29, 2015 at 05:47:49PM +0200, Geert Uytterhoeven wrote:
> >> > netconsole itself is optional & modular.  I'm not sure making further
> >> > splits is called for, especially given the use cases.
> >>
> >> It could be a hidden option, selected by its users (e.g. netconsole).
> >
> > Hmmm... what do you mean?
> 
> init/Kconfig:
> 
>         config PRINTK_EXT_LOG
>                 bool
> 
> drivers/net/Kconfig:
> 
>         config NETCONSOLE
>                 tristate "Network console logging support"
>                 select PRINTK_EXT_LOG
> 
> kernel/printk/printk.c:
> 
>         void console_unlock(void)
>         {
> #ifdef CONFIG_PRINTK_EXT_LOG
>                 static char ext_text[CONSOLE_EXT_LOG_MAX];
> #endif

OIC, hmmm... yeah, I think doing it on-demand would be better but will
try to find out which way is better.

Thanks!

-- 
tejun
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