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Date: Mon, 26 Feb 2018 02:56:08 +0800
From: kbuild test robot <fengguang.wu@...el.com>
To: Hans Verkuil <hverkuil@...all.nl>
Cc: kbuild-all@...org, linux-kernel@...r.kernel.org,
Mauro Carvalho Chehab <m.chehab@...sung.com>,
linux-media@...r.kernel.org
Subject: drivers/media/common/videobuf2/videobuf2-core.c:1737: undefined
reference to `v4l_vb2q_enable_media_source'
Hi Hans,
FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 3664ce2d930983966d2aac0e167f1332988c4e25
commit: 7952be9b6ece3d3c4d61f9811d7e5a984580064a media: drivers/media/common/videobuf2: rename from videobuf
date: 5 weeks ago
config: x86_64-randconfig-r0-02260008 (attached as .config)
compiler: gcc-6 (Debian 6.4.0-9) 6.4.0 20171026
reproduce:
git checkout 7952be9b6ece3d3c4d61f9811d7e5a984580064a
# save the attached .config to linux build tree
make ARCH=x86_64
All errors (new ones prefixed by >>):
drivers/media/common/videobuf2/videobuf2-core.o: In function `vb2_core_streamon':
>> drivers/media/common/videobuf2/videobuf2-core.c:1737: undefined reference to `v4l_vb2q_enable_media_source'
drivers/media/common/videobuf2/videobuf2-v4l2.o: In function `vb2_poll':
drivers/media/common/videobuf2/videobuf2-v4l2.c:678: undefined reference to `video_devdata'
drivers/media/common/videobuf2/videobuf2-v4l2.c:685: undefined reference to `v4l2_event_pending'
drivers/media/common/videobuf2/videobuf2-v4l2.o: In function `vb2_ioctl_reqbufs':
drivers/media/common/videobuf2/videobuf2-v4l2.c:714: undefined reference to `video_devdata'
drivers/media/common/videobuf2/videobuf2-v4l2.o: In function `vb2_ioctl_create_bufs':
drivers/media/common/videobuf2/videobuf2-v4l2.c:733: undefined reference to `video_devdata'
drivers/media/common/videobuf2/videobuf2-v4l2.o: In function `vb2_ioctl_prepare_buf':
drivers/media/common/videobuf2/videobuf2-v4l2.c:759: undefined reference to `video_devdata'
drivers/media/common/videobuf2/videobuf2-v4l2.o: In function `vb2_ioctl_querybuf':
drivers/media/common/videobuf2/videobuf2-v4l2.c:769: undefined reference to `video_devdata'
drivers/media/common/videobuf2/videobuf2-v4l2.o: In function `vb2_ioctl_qbuf':
drivers/media/common/videobuf2/videobuf2-v4l2.c:778: undefined reference to `video_devdata'
drivers/media/common/videobuf2/videobuf2-v4l2.o:drivers/media/common/videobuf2/videobuf2-v4l2.c:788: more undefined references to `video_devdata' follow
drivers/media/common/videobuf2/videobuf2-v4l2.o: In function `_vb2_fop_release':
drivers/media/common/videobuf2/videobuf2-v4l2.c:848: undefined reference to `v4l2_fh_release'
vim +1737 drivers/media/common/videobuf2/videobuf2-core.c
bd323e28b drivers/media/video/videobuf2-core.c Marek Szyprowski 2011-08-29 1706
3c5be988e drivers/media/v4l2-core/videobuf2-core.c Junghak Sung 2015-10-06 1707 int vb2_core_streamon(struct vb2_queue *q, unsigned int type)
e23ccc0ad drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 1708 {
5db2c3ba4 drivers/media/video/videobuf2-core.c Pawel Osciak 2011-03-20 1709 int ret;
e23ccc0ad drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 1710
e23ccc0ad drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 1711 if (type != q->type) {
fd4354cf5 drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-04-07 1712 dprintk(1, "invalid stream type\n");
e23ccc0ad drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 1713 return -EINVAL;
e23ccc0ad drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 1714 }
e23ccc0ad drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 1715
e23ccc0ad drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 1716 if (q->streaming) {
fd4354cf5 drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-04-07 1717 dprintk(3, "already streaming\n");
f956035ce drivers/media/v4l2-core/videobuf2-core.c Ricardo Ribalda Delgado 2013-11-08 1718 return 0;
e23ccc0ad drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 1719 }
e23ccc0ad drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 1720
548df7831 drivers/media/v4l2-core/videobuf2-core.c Ricardo Ribalda Delgado 2014-01-08 1721 if (!q->num_buffers) {
fd4354cf5 drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-04-07 1722 dprintk(1, "no buffers have been allocated\n");
548df7831 drivers/media/v4l2-core/videobuf2-core.c Ricardo Ribalda Delgado 2014-01-08 1723 return -EINVAL;
548df7831 drivers/media/v4l2-core/videobuf2-core.c Ricardo Ribalda Delgado 2014-01-08 1724 }
548df7831 drivers/media/v4l2-core/videobuf2-core.c Ricardo Ribalda Delgado 2014-01-08 1725
b3379c620 drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-02-24 1726 if (q->num_buffers < q->min_buffers_needed) {
fd4354cf5 drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-04-07 1727 dprintk(1, "need at least %u allocated buffers\n",
b3379c620 drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-02-24 1728 q->min_buffers_needed);
b3379c620 drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-02-24 1729 return -EINVAL;
b3379c620 drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-02-24 1730 }
249f5a58b drivers/media/v4l2-core/videobuf2-core.c Ricardo Ribalda Delgado 2014-01-08 1731
e23ccc0ad drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 1732 /*
b3379c620 drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-02-24 1733 * Tell driver to start streaming provided sufficient buffers
b3379c620 drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-02-24 1734 * are available.
e23ccc0ad drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 1735 */
b3379c620 drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-02-24 1736 if (q->queued_count >= q->min_buffers_needed) {
77fa4e072 drivers/media/v4l2-core/videobuf2-core.c Shuah Khan 2016-02-11 @1737 ret = v4l_vb2q_enable_media_source(q);
77fa4e072 drivers/media/v4l2-core/videobuf2-core.c Shuah Khan 2016-02-11 1738 if (ret)
77fa4e072 drivers/media/v4l2-core/videobuf2-core.c Shuah Khan 2016-02-11 1739 return ret;
02f142ecd drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2013-12-13 1740 ret = vb2_start_streaming(q);
5db2c3ba4 drivers/media/video/videobuf2-core.c Pawel Osciak 2011-03-20 1741 if (ret) {
bd323e28b drivers/media/video/videobuf2-core.c Marek Szyprowski 2011-08-29 1742 __vb2_queue_cancel(q);
5db2c3ba4 drivers/media/video/videobuf2-core.c Pawel Osciak 2011-03-20 1743 return ret;
5db2c3ba4 drivers/media/video/videobuf2-core.c Pawel Osciak 2011-03-20 1744 }
b3379c620 drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-02-24 1745 }
5db2c3ba4 drivers/media/video/videobuf2-core.c Pawel Osciak 2011-03-20 1746
5db2c3ba4 drivers/media/video/videobuf2-core.c Pawel Osciak 2011-03-20 1747 q->streaming = 1;
e23ccc0ad drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 1748
fd4354cf5 drivers/media/v4l2-core/videobuf2-core.c Hans Verkuil 2014-04-07 1749 dprintk(3, "successful\n");
e23ccc0ad drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 1750 return 0;
e23ccc0ad drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 1751 }
3c5be988e drivers/media/v4l2-core/videobuf2-core.c Junghak Sung 2015-10-06 1752 EXPORT_SYMBOL_GPL(vb2_core_streamon);
e23ccc0ad drivers/media/video/videobuf2-core.c Pawel Osciak 2010-10-11 1753
:::::: The code at line 1737 was first introduced by commit
:::::: 77fa4e072998705883c4dc672963b4bf7483cea9 [media] media: Change v4l-core to check if source is free
:::::: TO: Shuah Khan <shuahkh@....samsung.com>
:::::: CC: Mauro Carvalho Chehab <mchehab@....samsung.com>
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