netdev - Re: [PATCH] build some drivers only when compile-testing

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Message-ID: <20130619163810.GY1403@sirena.org.uk>
Date:	Wed, 19 Jun 2013 17:38:11 +0100
From:	Mark Brown <broonie@...nel.org>
To:	Felipe Balbi <balbi@...com>
Cc:	Jiri Slaby <jslaby@...e.cz>, Michal Marek <mmarek@...e.cz>,
	Jeff Mahoney <jeffm@...e.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	jirislaby@...il.com, linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
	linux-usb@...r.kernel.org,
	Florian Tobias Schandinat <FlorianSchandinat@....de>,
	linux-geode@...ts.infradead.org, linux-fbdev@...r.kernel.org,
	Richard Cochran <richardcochran@...il.com>,
	netdev@...r.kernel.org, Ben Hutchings <ben@...adent.org.uk>,
	"Keller, Jacob E" <jacob.e.keller@...el.com>, tomi.valkeinen@...com
Subject: Re: [PATCH] build some drivers only when compile-testing

On Tue, Jun 18, 2013 at 11:34:26AM +0300, Felipe Balbi wrote:

> MUSB alone has 8 different arch choices. Before, it used to be that core
> driver was dependendent on all of them, so whenever someone wanted to
> build MUSB for another arch, they had to introdude their glue code and
> modify the dependency of the core driver.

> Also EHCI, it works on pretty much everything, so does DWC3.

> DWC3 already has three possibilities but I know of at least 3 others
> which could show up soonish.

If the number of architectures supported is getting large enough then
it's probably reasonable to just enable the driver all the time,
probably it'll also appear on some PCI cards or something anyway.  The
things people are complaining about here are things that are clearly
unlikely to appear on other architectures like a particular SoC vendor's
custom IPs that they don't license out.

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