linux-kernel - Re: [PATCH] usb: gadget: lpc32xx_udc: Port to new start/stop interface

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Date:	Fri, 17 Aug 2012 13:28:53 +0200
From:	Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To:	balbi@...com
CC:	Roland Stigge <stigge@...com.de>, linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org, gregkh@...uxfoundation.org,
	arnd@...db.de, aletes.xgr@...il.com, kevin.wells@....com,
	srinivas.bakki@....com
Subject: Re: [PATCH] usb: gadget: lpc32xx_udc: Port to new start/stop interface

On 08/17/2012 01:02 PM, Felipe Balbi wrote:
> On Fri, Aug 17, 2012 at 01:01:44PM +0200, Sebastian Andrzej Siewior wrote:
>> On 08/17/2012 12:51 PM, Felipe Balbi wrote:
>>>> Sounds reasonable?
>>>
>>> no it doesn't. Please remove that static global. Sorry but one of the
>>> goals with udc_start/udc_stop was really to get rid of all those
>>> nonsensical static globals.
>>
>> I wouldn't insist on it. If you look at pxa25x, " static struct
>> pxa25x_udc memory = {" they do the same thing. It is only a simple way
>> to onetime initialize variables.
>
> fair enough. Though that's wrong too and should be changed. The whole
> idea of allowing multiple UDCs on the same kernel image is mostly to aid
> development. Specially on pre-silicon phase. We could have a bunch of
> PCIe FPGA boards and instantiate a different controller on each one and
> have the same kernel work with them all.

True. And he said he is going to fix it once they have multiple UDC. I
didn't remove the global thingy from any driver I converted if it was
used as a way to easy initialize things. And I kept only one reference
to it in the probe code. This is the only thing I ask for.

Sebastian
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