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Date: Thu, 10 Apr 2014 12:14:37 +0100
From: One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk>
To: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Dave Hansen <dave@sr71.net>,
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        Jiri Slaby <jslaby@suse.cz>
Subject: Re: post 3.14 serial regression
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> I also noticed that unbinding and rebinding the driver doesn't re-attach it
> as a serial console.

Correct. The serial "console" is not hot pluggable.

http://blog.gmane.org/gmane.linux.serial/month=20090301/page=5

related 2009 discussion ..

Alan