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Re: [PATCH 2/2] serial: 8250_mid: Read RX buffer on RX DMA timeout for DNV

Started byAndy Shevchenko <andriy.shevchenko@linux.intel.com>
First post2016-05-13 13:30 +0200
Last post2016-05-17 20:20 +0200
Articles 4 — 3 participants

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  Re: [PATCH 2/2] serial: 8250_mid: Read RX buffer on RX DMA timeout  for DNV Andy Shevchenko <andriy.shevchenko@linux.intel.com> - 2016-05-13 13:30 +0200
    RE: [PATCH 2/2] serial: 8250_mid: Read RX buffer on RX DMA timeout  for DNV "Chuah, Kim Tatt" <kim.tatt.chuah@intel.com> - 2016-05-16 07:30 +0200
      Re: [PATCH 2/2] serial: 8250_mid: Read RX buffer on RX DMA timeout  for DNV Andy Shevchenko <andriy.shevchenko@linux.intel.com> - 2016-05-20 14:40 +0200
    Re: [PATCH 2/2] serial: 8250_mid: Read RX buffer on RX DMA timeout  for DNV Peter Hurley <peter@hurleysoftware.com> - 2016-05-17 20:20 +0200

#1400710 — Re: [PATCH 2/2] serial: 8250_mid: Read RX buffer on RX DMA timeout for DNV

FromAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Date2016-05-13 13:30 +0200
SubjectRe: [PATCH 2/2] serial: 8250_mid: Read RX buffer on RX DMA timeout for DNV
Message-ID<ryjs6-2gO-23@gated-at.bofh.it>
On Fri, 2016-05-13 at 18:15 +0800, kbuild test robot wrote:
> Hi,
> 
> [auto build test ERROR on next-20160513]
> [cannot apply to tty/tty-testing usb/usb-testing v4.6-rc7 v4.6-rc6
> v4.6-rc5 v4.6-rc7]
> [if your patch is applied to the wrong git tree, please drop us a note
> to help improving the system]
> 
> url:    https://github.com/0day-ci/linux/commits/Chuah-Kim-Tatt/Fix-DN
> V-HSUART-RX-DMA-timeout-interrupt-issue/20160513-162046
> config: i386-randconfig-s0-201619 (attached as .config)
> compiler: gcc-6 (Debian 6.1.1-1) 6.1.1 20160430
> reproduce:
>         # save the attached .config to linux build tree
>         make ARCH=i386 
> 
> Note: the linux-review/Chuah-Kim-Tatt/Fix-DNV-HSUART-RX-DMA-timeout-
> interrupt-issue/20160513-162046 HEAD
> 0354112aa9821bec8d278ad06b3d543724f5291d builds fine.
>       It only hurts bisectibility.
> 
> All errors (new ones prefixed by >>):

Peter, what happened to your DMA series in the linux-next? Did I miss
any discussion related?

> 
> > 
> > > 
> > > ERROR: "serial8250_rx_dma_flush"
> > > [drivers/tty/serial/8250/8250_mid.ko] undefined!
> ---
> 0-DAY kernel test infrastructure                Open Source Technology
> Center
> https://lists.01.org/pipermail/kbuild-all                   Intel
> Corporation

-- 
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Intel Finland Oy

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#1401317

From"Chuah, Kim Tatt" <kim.tatt.chuah@intel.com>
Date2016-05-16 07:30 +0200
Message-ID<rzjgl-2NX-3@gated-at.bofh.it>
In reply to#1400710

>-----Original Message-----
>From: Andy Shevchenko [mailto:andriy.shevchenko@linux.intel.com]
>Sent: Friday, May 13, 2016 7:28 PM
>To: lkp <lkp@intel.com>; Chuah, Kim Tatt <kim.tatt.chuah@intel.com>; Peter
>Hurley <peter@hurleysoftware.com>
>Cc: kbuild-all@01.org; gregkh@linuxfoundation.org; Koul, Vinod
><vinod.koul@intel.com>; heikki.krogerus@linux.intel.com;
>mika.westerberg@linux.intel.com; linux-kernel@vger.kernel.org; Tan, Jui Nee
><jui.nee.tan@intel.com>
>Subject: Re: [PATCH 2/2] serial: 8250_mid: Read RX buffer on RX DMA timeout for
>DNV
>
>On Fri, 2016-05-13 at 18:15 +0800, kbuild test robot wrote:
>> Hi,
>>
>> [auto build test ERROR on next-20160513] [cannot apply to
>> tty/tty-testing usb/usb-testing v4.6-rc7 v4.6-rc6
>> v4.6-rc5 v4.6-rc7]
>> [if your patch is applied to the wrong git tree, please drop us a note
>> to help improving the system]
>>
>> url:    https://github.com/0day-ci/linux/commits/Chuah-Kim-Tatt/Fix-DN
>> V-HSUART-RX-DMA-timeout-interrupt-issue/20160513-162046
>> config: i386-randconfig-s0-201619 (attached as .config)
>> compiler: gcc-6 (Debian 6.1.1-1) 6.1.1 20160430
>> reproduce:
>>         # save the attached .config to linux build tree
>>         make ARCH=i386
>>
>> Note: the linux-review/Chuah-Kim-Tatt/Fix-DNV-HSUART-RX-DMA-timeout-
>> interrupt-issue/20160513-162046 HEAD
>> 0354112aa9821bec8d278ad06b3d543724f5291d builds fine.
>>       It only hurts bisectibility.
>>
>> All errors (new ones prefixed by >>):
>
>Peter, what happened to your DMA series in the linux-next? Did I miss any
>discussion related?
>
Hi Andy,
The error occurs when CONFIG_8250_MID is set to "m", because serial8250_rx_dma_flush() was not exported. Please advise.
>>
>> >
>> > >
>> > > ERROR: "serial8250_rx_dma_flush"
>> > > [drivers/tty/serial/8250/8250_mid.ko] undefined!
>> ---
>> 0-DAY kernel test infrastructure                Open Source Technology
>> Center https://lists.01.org/pipermail/kbuild-all
>> Intel Corporation
>
>--
>Andy Shevchenko <andriy.shevchenko@linux.intel.com>
>Intel Finland Oy

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#1404397

FromAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Date2016-05-20 14:40 +0200
Message-ID<rARSG-5u5-9@gated-at.bofh.it>
In reply to#1401317
On Mon, 2016-05-16 at 05:29 +0000, Chuah, Kim Tatt wrote:
> > On Fri, 2016-05-13 at 18:15 +0800, kbuild test robot wrote:

> > Peter, what happened to your DMA series in the linux-next? Did I
> > miss any
> > discussion related?
> > 
> Hi Andy,
> The error occurs when CONFIG_8250_MID is set to "m", because
> serial8250_rx_dma_flush() was not exported. Please advise.

Peter, this is a problem ^^^.

Kim, I suggest you to add an additional patch that exports a symbol and
send a new version of the patchset with Cc to Peter and linux-serial@
(besides the list of recipients you already have).

> > > > > ERROR: "serial8250_rx_dma_flush"
> > > > > [drivers/tty/serial/8250/8250_mid.ko] undefined!

-- 
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Intel Finland Oy

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#1402517

FromPeter Hurley <peter@hurleysoftware.com>
Date2016-05-17 20:20 +0200
Message-ID<rzRL3-7Yd-7@gated-at.bofh.it>
In reply to#1400710
On 05/13/2016 04:27 AM, Andy Shevchenko wrote:
> On Fri, 2016-05-13 at 18:15 +0800, kbuild test robot wrote:
>> Hi,
>>
>> [auto build test ERROR on next-20160513]
>> [cannot apply to tty/tty-testing usb/usb-testing v4.6-rc7 v4.6-rc6
>> v4.6-rc5 v4.6-rc7]
>> [if your patch is applied to the wrong git tree, please drop us a note
>> to help improving the system]
>>
>> url:    https://github.com/0day-ci/linux/commits/Chuah-Kim-Tatt/Fix-DN
>> V-HSUART-RX-DMA-timeout-interrupt-issue/20160513-162046
>> config: i386-randconfig-s0-201619 (attached as .config)
>> compiler: gcc-6 (Debian 6.1.1-1) 6.1.1 20160430
>> reproduce:
>>         # save the attached .config to linux build tree
>>         make ARCH=i386 
>>
>> Note: the linux-review/Chuah-Kim-Tatt/Fix-DNV-HSUART-RX-DMA-timeout-
>> interrupt-issue/20160513-162046 HEAD
>> 0354112aa9821bec8d278ad06b3d543724f5291d builds fine.
>>       It only hurts bisectibility.
>>
>> All errors (new ones prefixed by >>):
> 
> Peter, what happened to your DMA series in the linux-next? Did I miss
> any discussion related?

Sorry, I don't understand. What is the problem?

And where is this patch coming from? I didn't see it on linux-serial.

Regards,
Peter Hurley


>>>>
>>>> ERROR: "serial8250_rx_dma_flush"
>>>> [drivers/tty/serial/8250/8250_mid.ko] undefined!
>> ---
>> 0-DAY kernel test infrastructure                Open Source Technology
>> Center
>> https://lists.01.org/pipermail/kbuild-all                   Intel
>> Corporation
> 

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