linux-kernel - Re: [PATCH v2] usb: raw-gadget: fix gadget endpoint selection

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Message-ID: <20200509170843.GD2482887@kroah.com>
Date:   Sat, 9 May 2020 19:08:43 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Felipe Balbi <balbi@...nel.org>
Cc:     Andrey Konovalov <andreyknvl@...gle.com>,
        USB list <linux-usb@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Alan Stern <stern@...land.harvard.edu>,
        Dmitry Vyukov <dvyukov@...gle.com>
Subject: Re: [PATCH v2] usb: raw-gadget: fix gadget endpoint selection

On Sat, May 09, 2020 at 11:02:13AM +0300, Felipe Balbi wrote:
> 
> Hi,
> 
> Andrey Konovalov <andreyknvl@...gle.com> writes:
> >> here you're changing userspace ABI. Aren't we going to possibly break
> >> some existing applications?
> >
> > Hi Felipe,
> >
> >  I've been working on tests for Raw Gadget for the last few weeks [1],
> > which revealed a few problems with the interface. This isn't yet
> > included into any released kernel, so my hope that changing the ABI is
> > OK during the rc stage.
> 
> Fair enough. If that's okay with Greg, it's okay with me, but then how
> do we include it into the -rc seen as it's not really a fix?
> 
> Greg, are you okay with me including such large patches during the -rc?
> They essentially add new IOCTLs to the raw-gadget interface.

Yes, as the driver only went in for -rc1, it's fine to add fixes like
this so late as we don't want to ship a -final with it in broken form.

thanks,

greg k-h