linux-kernel - Re: [PATCH 2/3] early_printk: Add force_early

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Message-ID: <20171013132020.la5nztxno4usrevp@hirez.programming.kicks-ass.net>
Date:   Fri, 13 Oct 2017 15:20:20 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Petr Mladek <pmladek@...e.com>
Cc:     sergey.senozhatsky@...il.com, linux-kernel@...r.kernel.org,
        rostedt@...dmis.org, mingo@...nel.org, tglx@...utronix.de
Subject: Re: [PATCH 2/3] early_printk: Add force_early_printk kernel parameter

On Fri, Oct 13, 2017 at 03:06:09PM +0200, Petr Mladek wrote:

> Or we should call early_printk() from printk() also when
> PRINTK is disabled.

This.

> > Do you mean if someone were to toggle force_early_printk at runtime?
> 
> Or that someone unregisters the early console.

That's broken anyway, nor do I think anybody does that, early_printk is
a set once never touch kinda thing.