linux-kernel - Re: [RFC/PATCH 1/2] Add usb_endpoint_descriptor to be part of the struct usb

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Message-ID: <20101005131804.GA3548@suse.de>
Date:	Tue, 5 Oct 2010 06:18:04 -0700
From:	Greg KH <gregkh@...e.de>
To:	tlinder <tlinder@...eaurora.org>
Cc:	Alan Stern <stern@...land.harvard.edu>,
	USB list <linux-usb@...r.kernel.org>,
	David Brownell <dbrownell@...rs.sourceforge.net>,
	Michal Nazarewicz <m.nazarewicz@...sung.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Kernel development list <linux-kernel@...r.kernel.org>
Subject: Re: [RFC/PATCH 1/2] Add usb_endpoint_descriptor to be part of the
 struct usb_ep

On Sun, Oct 03, 2010 at 12:35:07PM -0400, Alan Stern wrote:
> On Sun, 3 Oct 2010, tlinder wrote:
> 
> > From: Tatyana Linder <tlinder@...eaurora.org>
> > 
> > Change ep_choose() and usb_ep_enable() prototypes to use endpoint
> > descriptor from usb_ep. This optimization prevents the FDs from handling
> > the endpoint chosen descriptor.
> > This optimization is not full though. To fully exploit this change one
> > needs to update all the UDCs as well since in the current implementation
> > each of them saves the endpoint descriptor in it's internal (and extended)
> > endpoint structure.
> > This patch is a preparation for adding SuperSpeed support to the gadget
> > framework.
> > 
> > Signed-off-by: Tatyana Linder <tlinder@...eaurora.org>
> 
> ...
> 
> > diff --git a/drivers/usb/gadget/file_storage.c b/drivers/usb/gadget/file_storage.c
> > index a857b7a..6264fba 100644
> > --- a/drivers/usb/gadget/file_storage.c
> > +++ b/drivers/usb/gadget/file_storage.c
> > @@ -3,6 +3,7 @@
> >   *
> >   * Copyright (C) 2003-2008 Alan Stern
> >   * All rights reserved.
> > + * Copyright (C) 2010 Code Aurora Forum. All rights reserved.
> >   *
> >   * Redistribution and use in source and binary forms, with or without
> >   * modification, are permitted provided that the following conditions
> 
> Speaking for myself only, I don't think people should add their own 
> copyright notices in files to which they have not made substantial 
> changes.  A little code motion and a small API adjustment don't seem 
> like large enough changes to justify this.  Some of the other files in 
> this patch have even smaller changes!

I agree.  Tatyana, please work with your company's lawyers to properly
learn how to add this type of mark to a file in a manner that is
correct.

Hint, this way is not correct :)

thanks,

greg k-h
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