Subject: [PATCH 1/3] printk: make preferred_console local static bool

From: [email-masked] (Joe Perches)
Date: Mon, 25 Jan 2016 04:45:01 -0800

On Mon, 2016-01-25 at 17:45 +0600, Aleksey Makarov wrote:
> The variable preferred_console is used only inside register_console()
> and it's semantics is boolean.??Make it clear.

This loses the index of the preferred console.
I'm not sure this is better.