linux-kernel - Re: [PATCH 1/2] serial: samsung: Move uart_register

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Message-ID: <20140123213321.372ce82b@www.etchedpixels.co.uk>
Date:	Thu, 23 Jan 2014 21:33:21 +0000
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Mark Brown <broonie@...nel.org>
Cc:	Tomasz Figa <t.figa@...sung.com>,
	Tushar Behera <tushar.behera@...aro.org>,
	Russell King - ARM Linux <linux@....linux.org.uk>,
	lkml <linux-kernel@...r.kernel.org>,
	linux-serial <linux-serial@...r.kernel.org>,
	linux-samsung-soc <linux-samsung-soc@...r.kernel.org>,
	jslaby <jslaby@...e.cz>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Ben Dooks <ben.dooks@...ethink.co.uk>
Subject: Re: [PATCH 1/2] serial: samsung: Move uart_register_driver call to
 device probe

On Thu, 23 Jan 2014 20:05:09 +0000
Mark Brown <broonie@...nel.org> wrote:

> On Thu, Jan 23, 2014 at 07:51:44PM +0000, Alan Cox wrote:
> 
> > That strikes me as rather more risky. We can propogate it through the
> > drivers as we are sure it is safe to do so on that platform and encourage
> > driver authors to migrate. Better than a "big bang" and the inevitable
> > fallout.
> 
> I don't see how we can meaningfully test this on a platform - the kernel
> would have to be pretty demented to care, it's userspace that cares and
> that's not really tied to individual serial drivers but is where we
> mainly need coverage.

Which is why I think we want to enable it gradually and platform by
platform as that platform or arch maintainer judges it appropriate given
their knowledge of their platform(s).

Alan
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