Re: USB gadgets with configfs hang reboot

[Tony Lindgren <tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>]

* Andrzej Pietrasiewicz <andrzej.p-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org> [160122 02:36]:
> Hi Tony,
> 
> W dniu 15.01.2016 o 23:48, Tony Lindgren pisze:
> >Hi all,
> >
> >Looks like there's some issue with the USB gadgets and configfs.
> >
> >I'm seeing rmmod of the UDC driver cause a warning and then reboot
> >hangs the system. This happens at least with v4.4, and I've reproduced
> >it with dwc3 and musb so it seems to be generic.
> >
> 
> I can't reproduce your problem on 4.4-rc4 nor on 4.4 release
> with the script you provided
>
> I'm using Odroid XU3, which has dwc3.

Well thanks for trying. Probably the difference is that
dwc3-exynos.c remove is calling platform_device_unregister()
while dwc3-omap.c remove is calling of_platform_depopulate()?

> >	mkdir functions/ecm.0
> >	ln -s functions/acm.0 configs/c.1
> 
> I assume you meant ecm.0 here and in the next line.
> 
> >	ln -s functions/acm.0 configs/c.2

OK, yes you're right. That does not affect the outcome though.

Regards,

Tony
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