[PATCH] usb: gadget: udc: atmel: fix endpoint name

[PATCH] usb: gadget: udc: atmel: fix endpoint name

[Alexandre Belloni]

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@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
---
 drivers/usb/gadget/udc/atmel_usba_udc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/gadget/udc/atmel_usba_udc.c b/drivers/usb/gadget/udc/atmel_usba_udc.c
index bb1f6c8f0f01..45bc997d0711 100644
--- a/drivers/usb/gadget/udc/atmel_usba_udc.c
+++ b/drivers/usb/gadget/udc/atmel_usba_udc.c
@@ -1978,7 +1978,7 @@ static struct usba_ep * atmel_udc_of_init(struct platform_device *pdev,
 			dev_err(&pdev->dev, "of_probe: name error(%d)\n", ret);
 			goto err;
 		}
-		ep->ep.name = name;
+		ep->ep.name = kasprintf(GFP_KERNEL, "ep%d", ep->index);
 
 		ep->ep_regs = udc->regs + USBA_EPT_BASE(i);
 		ep->dma_regs = udc->regs + USBA_DMA_BASE(i);
-- 
2.9.3

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

[Nicolas Ferre]

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@gmail.com>
> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>

Acked-by: Nicolas Ferre <nicolas.ferre@atmel.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.

Thanks to Richard for finding this and Alexandre for the quick correction.

Bye,

> ---
>  drivers/usb/gadget/udc/atmel_usba_udc.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/usb/gadget/udc/atmel_usba_udc.c b/drivers/usb/gadget/udc/atmel_usba_udc.c
> index bb1f6c8f0f01..45bc997d0711 100644
> --- a/drivers/usb/gadget/udc/atmel_usba_udc.c
> +++ b/drivers/usb/gadget/udc/atmel_usba_udc.c
> @@ -1978,7 +1978,7 @@ static struct usba_ep * atmel_udc_of_init(struct platform_device *pdev,
>  			dev_err(&pdev->dev, "of_probe: name error(%d)\n", ret);
>  			goto err;
>  		}
> -		ep->ep.name = name;
> +		ep->ep.name = kasprintf(GFP_KERNEL, "ep%d", ep->index);
>  
>  		ep->ep_regs = udc->regs + USBA_EPT_BASE(i);
>  		ep->dma_regs = udc->regs + USBA_DMA_BASE(i);
> 


-- 
Nicolas Ferre

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

[Nicolas Ferre]

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@gmail.com>
>> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
> 
> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.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)?

Bye,

> Thanks to Richard for finding this and Alexandre for the quick correction.
> 
> Bye,
> 
>> ---
>>  drivers/usb/gadget/udc/atmel_usba_udc.c | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/usb/gadget/udc/atmel_usba_udc.c b/drivers/usb/gadget/udc/atmel_usba_udc.c
>> index bb1f6c8f0f01..45bc997d0711 100644
>> --- a/drivers/usb/gadget/udc/atmel_usba_udc.c
>> +++ b/drivers/usb/gadget/udc/atmel_usba_udc.c
>> @@ -1978,7 +1978,7 @@ static struct usba_ep * atmel_udc_of_init(struct platform_device *pdev,
>>  			dev_err(&pdev->dev, "of_probe: name error(%d)\n", ret);
>>  			goto err;
>>  		}
>> -		ep->ep.name = name;
>> +		ep->ep.name = kasprintf(GFP_KERNEL, "ep%d", ep->index);
>>  
>>  		ep->ep_regs = udc->regs + USBA_EPT_BASE(i);
>>  		ep->dma_regs = udc->regs + USBA_DMA_BASE(i);
>>
> 
> 


-- 
Nicolas Ferre

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

[Greg Kroah-Hartman]

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@gmail.com>
> >> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
> > 
> > Acked-by: Nicolas Ferre <nicolas.ferre@atmel.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 :)

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

[Felipe Balbi]

[-- Attachment #1: Type: text/plain, Size: 3153 bytes --]


Hi,

Greg Kroah-Hartman <gregkh@linuxfoundation.org> writes:
> 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@gmail.com>
>> >> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
>> > 
>> > Acked-by: Nicolas Ferre <nicolas.ferre@atmel.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 :)

Sorry, I had missed this one. Greg, seems like this would be the only
pending fix. Do you want it in a pull request or would you prefer to
just pick it up as a patch? Works either way for me. In case you decide
to pick it up as a patch:

Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com>

If you prefer to pick it up as a pull request, I already have the patch
in my 'fixes' branch, just need to tag it and send it to you.

-- 
balbi

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 800 bytes --]

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

[Richard Genoud]

2016-09-26 9:18 GMT+02:00 Felipe Balbi <balbi@kernel.org>:
>
> Hi,
>
> Greg Kroah-Hartman <gregkh@linuxfoundation.org> writes:
>> 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@gmail.com>
>>> >> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
>>> >
>>> > Acked-by: Nicolas Ferre <nicolas.ferre@atmel.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 :)
>
> Sorry, I had missed this one. Greg, seems like this would be the only
> pending fix. Do you want it in a pull request or would you prefer to
> just pick it up as a patch? Works either way for me. In case you decide
> to pick it up as a patch:
>
> Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com>
>
> If you prefer to pick it up as a pull request, I already have the patch
> in my 'fixes' branch, just need to tag it and send it to you.
>
> --
> balbi

All seems ok, thanks Alexandre.

Tested-by: Richard Genoud <richard.genoud@gmail.com>

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

[Nicolas Ferre]

Le 26/09/2016 à 09:18, Felipe Balbi a écrit :
> 
> Hi,
> 
> Greg Kroah-Hartman <gregkh@linuxfoundation.org> writes:
>> 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@gmail.com>
>>>>> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
>>>>
>>>> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.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 :)
> 
> Sorry, I had missed this one. Greg, seems like this would be the only
> pending fix. Do you want it in a pull request or would you prefer to
> just pick it up as a patch? Works either way for me. In case you decide
> to pick it up as a patch:
> 
> Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com>
> 
> If you prefer to pick it up as a pull request, I already have the patch
> in my 'fixes' branch, just need to tag it and send it to you.

Felipe,

We agreed to delay this patch after the merge window is closed. But I
feel that it's beginning to be urgent to make this patch go forward:
actual users of our kernel are facing the issue:

https://lkml.org/lkml/2016/10/17/493

We're already at -rc2 and I don't see USB-fixes included...

Best regards,
-- 
Nicolas Ferre

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

[Alexandre Belloni]

On 24/10/2016 at 13:59:47 +0200, Nicolas Ferre wrote :
> > Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com>
> > 
> > If you prefer to pick it up as a pull request, I already have the patch
> > in my 'fixes' branch, just need to tag it and send it to you.
> 
> Felipe,
> 
> We agreed to delay this patch after the merge window is closed. But I
> feel that it's beginning to be urgent to make this patch go forward:
> actual users of our kernel are facing the issue:
> 
> https://lkml.org/lkml/2016/10/17/493
> 
> We're already at -rc2 and I don't see USB-fixes included...
> 

It is in Greg's branch:
http://git.kernel.org/cgit/linux/kernel/git/gregkh/usb.git/log/?h=usb-linus

-- 
Alexandre Belloni, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com