linux-kernel - Re: [PATCH] usb: gadget: udc: atmel: fix endpoint name

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Date:   Fri, 23 Sep 2016 17:03:23 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Nicolas Ferre <nicolas.ferre@...el.com>
Cc:     Felipe Balbi <balbi@...nel.org>,
        Alexandre Belloni <alexandre.belloni@...e-electrons.com>,
        Richard Genoud <richard.genoud@...il.com>,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] usb: gadget: udc: atmel: fix endpoint name

On Fri, Sep 23, 2016 at 04:20:45PM +0200, Nicolas Ferre wrote:
> Le 16/09/2016 à 10:36, Nicolas Ferre a écrit :
> > Le 15/09/2016 à 17:07, Alexandre Belloni a écrit :
> >> Since commit c32b5bcfa3c4 ("ARM: dts: at91: Fix USB endpoint nodes"),
> >> atmel_usba_udc fails with:
> >>
> >> ------------[ cut here ]------------
> >> WARNING: CPU: 0 PID: 0 at include/linux/usb/gadget.h:405
> >> ecm_do_notify+0x188/0x1a0
> >> Modules linked in:
> >> CPU: 0 PID: 0 Comm: swapper Not tainted 4.7.0+ #15
> >> Hardware name: Atmel SAMA5
> >> [<c010ccfc>] (unwind_backtrace) from [<c010a7ec>] (show_stack+0x10/0x14)
> >> [<c010a7ec>] (show_stack) from [<c0115c10>] (__warn+0xe4/0xfc)
> >> [<c0115c10>] (__warn) from [<c0115cd8>] (warn_slowpath_null+0x20/0x28)
> >> [<c0115cd8>] (warn_slowpath_null) from [<c04377ac>] (ecm_do_notify+0x188/0x1a0)
> >> [<c04377ac>] (ecm_do_notify) from [<c04379a4>] (ecm_set_alt+0x74/0x1ac)
> >> [<c04379a4>] (ecm_set_alt) from [<c042f74c>] (composite_setup+0xfc0/0x19f8)
> >> [<c042f74c>] (composite_setup) from [<c04356e8>] (usba_udc_irq+0x8f4/0xd9c)
> >> [<c04356e8>] (usba_udc_irq) from [<c013ec9c>] (handle_irq_event_percpu+0x9c/0x158)
> >> [<c013ec9c>] (handle_irq_event_percpu) from [<c013ed80>] (handle_irq_event+0x28/0x3c)
> >> [<c013ed80>] (handle_irq_event) from [<c01416d4>] (handle_fasteoi_irq+0xa0/0x168)
> >> [<c01416d4>] (handle_fasteoi_irq) from [<c013e3f8>] (generic_handle_irq+0x24/0x34)
> >> [<c013e3f8>] (generic_handle_irq) from [<c013e640>] (__handle_domain_irq+0x54/0xa8)
> >> [<c013e640>] (__handle_domain_irq) from [<c010b214>] (__irq_svc+0x54/0x70)
> >> [<c010b214>] (__irq_svc) from [<c0107eb0>] (arch_cpu_idle+0x38/0x3c)
> >> [<c0107eb0>] (arch_cpu_idle) from [<c0137300>] (cpu_startup_entry+0x9c/0xdc)
> >> [<c0137300>] (cpu_startup_entry) from [<c0900c40>] (start_kernel+0x354/0x360)
> >> [<c0900c40>] (start_kernel) from [<20008078>] (0x20008078)
> >> ---[ end trace e7cf9dcebf4815a6 ]---
> >>
> >> Fixes: c32b5bcfa3c4 ("ARM: dts: at91: Fix USB endpoint nodes")
> >> Reported-by: Richard Genoud <richard.genoud@...il.com>
> >> Signed-off-by: Alexandre Belloni <alexandre.belloni@...e-electrons.com>
> > 
> > Acked-by: Nicolas Ferre <nicolas.ferre@...el.com>
> > 
> > Felipe, Greg,
> > It is clearly a regression and material for 4.8-fixes. But I do know
> > that we are very late in the process :-(
> > Please do what you can to make it progress before 4.8-final but I'm
> > truly aware of the challenge.
> 
> Any chance that we can have it (aka ping)?

It's Felipe's area, not mine :)