linux-kernel - Re: [PATCH 2/8] Input: atmel_mxt_ts - output diagnostic debug via v4l2 device

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Date:	Thu, 21 Apr 2016 19:23:30 +0800
From:	kbuild test robot <lkp@...el.com>
To:	Nick Dyer <nick.dyer@...ev.co.uk>
Cc:	kbuild-all@...org, Dmitry Torokhov <dmitry.torokhov@...il.com>,
	linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-media@...r.kernel.org,
	Benjamin Tissoires <benjamin.tissoires@...hat.com>,
	Benson Leung <bleung@...omium.org>,
	Alan Bowens <Alan.Bowens@...el.com>,
	Javier Martinez Canillas <javier@....samsung.com>,
	Chris Healy <cphealy@...il.com>,
	Henrik Rydberg <rydberg@...math.org>,
	Andrew Duggan <aduggan@...aptics.com>,
	James Chen <james.chen@....com.tw>,
	Dudley Du <dudl@...ress.com>,
	Andrew de los Reyes <adlr@...omium.org>,
	sheckylin@...omium.org, Peter Hutterer <peter.hutterer@...-t.net>,
	Florian Echtler <floe@...terbrot.org>,
	Nick Dyer <nick.dyer@...ev.co.uk>
Subject: Re: [PATCH 2/8] Input: atmel_mxt_ts - output diagnostic debug via
 v4l2 device

Hi,

[auto build test ERROR on input/next]
[also build test ERROR on v4.6-rc4 next-20160420]
[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/Nick-Dyer/Input-atmel_mxt_ts-output-raw-touch-diagnostic-data-via-V4L/20160421-174351
base:   https://git.kernel.org/pub/scm/linux/kernel/git/dtor/input.git next
config: arm-exynos_defconfig (attached as .config)
reproduce:
        wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=arm 

All errors (new ones prefixed by >>):

   drivers/built-in.o: In function `video_drvdata':
>> include/media/v4l2-dev.h:224: undefined reference to `video_devdata'
>> include/media/v4l2-dev.h:224: undefined reference to `video_devdata'
>> include/media/v4l2-dev.h:224: undefined reference to `video_devdata'
>> include/media/v4l2-dev.h:224: undefined reference to `video_devdata'
>> include/media/v4l2-dev.h:224: undefined reference to `video_devdata'
   drivers/built-in.o: In function `mxt_free_object_table':
>> drivers/input/touchscreen/atmel_mxt_ts.c:1552: undefined reference to `video_unregister_device'
>> drivers/input/touchscreen/atmel_mxt_ts.c:1553: undefined reference to `v4l2_device_unregister'
   drivers/built-in.o: In function `mxt_buffer_queue':
>> drivers/input/touchscreen/atmel_mxt_ts.c:2210: undefined reference to `vb2_plane_vaddr'
>> drivers/input/touchscreen/atmel_mxt_ts.c:2225: undefined reference to `vb2_buffer_done'
   drivers/input/touchscreen/atmel_mxt_ts.c:2221: undefined reference to `vb2_buffer_done'
   drivers/built-in.o: In function `mxt_debug_init':
>> drivers/input/touchscreen/atmel_mxt_ts.c:2429: undefined reference to `v4l2_device_register'
>> drivers/input/touchscreen/atmel_mxt_ts.c:2437: undefined reference to `vb2_vmalloc_memops'
>> drivers/input/touchscreen/atmel_mxt_ts.c:2437: undefined reference to `vb2_vmalloc_memops'
>> drivers/input/touchscreen/atmel_mxt_ts.c:2441: undefined reference to `vb2_queue_init'
>> drivers/input/touchscreen/atmel_mxt_ts.c:2445: undefined reference to `video_device_release_empty'
>> drivers/input/touchscreen/atmel_mxt_ts.c:2445: undefined reference to `video_device_release_empty'
   drivers/built-in.o: In function `video_register_device':
>> include/media/v4l2-dev.h:160: undefined reference to `__video_register_device'
   drivers/built-in.o: In function `mxt_debug_init':
   drivers/input/touchscreen/atmel_mxt_ts.c:2461: undefined reference to `v4l2_device_unregister'
   drivers/built-in.o: In function `.LANCHOR1':
>> :(.rodata+0x3a090): undefined reference to `vb2_ops_wait_prepare'
>> :(.rodata+0x3a094): undefined reference to `vb2_ops_wait_finish'
>> :(.rodata+0x3a0b8): undefined reference to `vb2_fop_read'
>> :(.rodata+0x3a0c0): undefined reference to `vb2_fop_poll'

vim +1552 drivers/input/touchscreen/atmel_mxt_ts.c

  1546			data->input_dev = NULL;
  1547		}
  1548	}
  1549	
  1550	static void mxt_free_object_table(struct mxt_data *data)
  1551	{
> 1552		video_unregister_device(&data->dbg.vdev);
> 1553		v4l2_device_unregister(&data->dbg.v4l2);
  1554	
  1555		kfree(data->object_table);
  1556		data->object_table = NULL;

---
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