From: kbuild test robot <lkp@intel.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: kbuild-all@01.org, linux-kernel@vger.kernel.org,
Ingo Molnar <mingo@kernel.org>
Subject: drivers/media/i2c/adv748x/adv748x-core.c:585: undefined reference to `v4l2_fwnode_endpoint_parse'
Date: Tue, 19 Mar 2019 00:47:43 +0800 [thread overview]
Message-ID: <201903190041.sFReCHHm%lkp@intel.com> (raw)
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Hi Peter,
It's probably a bug fix that unveils the link errors.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 9e98c678c2d6ae3a17cb2de55d17f69dddaa231b
commit: f764c58b7faa26f5714e6907f892abc2bc0de4f8 perf/x86: Fixup typo in stub functions
date: 3 days ago
config: x86_64-randconfig-a0-03182338 (attached as .config)
compiler: gcc-7 (Debian 7.3.0-1) 7.3.0
reproduce:
git checkout f764c58b7faa26f5714e6907f892abc2bc0de4f8
# save the attached .config to linux build tree
make ARCH=x86_64
All errors (new ones prefixed by >>):
drivers/media/i2c/adv748x/adv748x-core.o: In function `adv748x_parse_csi2_lanes':
>> drivers/media/i2c/adv748x/adv748x-core.c:585: undefined reference to `v4l2_fwnode_endpoint_parse'
vim +585 drivers/media/i2c/adv748x/adv748x-core.c
3e89586a Kieran Bingham 2017-07-06 572
6a18865d Niklas Söderlund 2018-11-28 573 static int adv748x_parse_csi2_lanes(struct adv748x_state *state,
6a18865d Niklas Söderlund 2018-11-28 574 unsigned int port,
6a18865d Niklas Söderlund 2018-11-28 575 struct device_node *ep)
6a18865d Niklas Söderlund 2018-11-28 576 {
6a18865d Niklas Söderlund 2018-11-28 577 struct v4l2_fwnode_endpoint vep;
6a18865d Niklas Söderlund 2018-11-28 578 unsigned int num_lanes;
6a18865d Niklas Söderlund 2018-11-28 579 int ret;
6a18865d Niklas Söderlund 2018-11-28 580
6a18865d Niklas Söderlund 2018-11-28 581 if (port != ADV748X_PORT_TXA && port != ADV748X_PORT_TXB)
6a18865d Niklas Söderlund 2018-11-28 582 return 0;
6a18865d Niklas Söderlund 2018-11-28 583
6a18865d Niklas Söderlund 2018-11-28 584 vep.bus_type = V4L2_MBUS_CSI2_DPHY;
6a18865d Niklas Söderlund 2018-11-28 @585 ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(ep), &vep);
6a18865d Niklas Söderlund 2018-11-28 586 if (ret)
6a18865d Niklas Söderlund 2018-11-28 587 return ret;
6a18865d Niklas Söderlund 2018-11-28 588
6a18865d Niklas Söderlund 2018-11-28 589 num_lanes = vep.bus.mipi_csi2.num_data_lanes;
6a18865d Niklas Söderlund 2018-11-28 590
6a18865d Niklas Söderlund 2018-11-28 591 if (vep.base.port == ADV748X_PORT_TXA) {
6a18865d Niklas Söderlund 2018-11-28 592 if (num_lanes != 1 && num_lanes != 2 && num_lanes != 4) {
6a18865d Niklas Söderlund 2018-11-28 593 adv_err(state, "TXA: Invalid number (%u) of lanes\n",
6a18865d Niklas Söderlund 2018-11-28 594 num_lanes);
6a18865d Niklas Söderlund 2018-11-28 595 return -EINVAL;
6a18865d Niklas Söderlund 2018-11-28 596 }
6a18865d Niklas Söderlund 2018-11-28 597
6a18865d Niklas Söderlund 2018-11-28 598 state->txa.num_lanes = num_lanes;
6a18865d Niklas Söderlund 2018-11-28 599 adv_dbg(state, "TXA: using %u lanes\n", state->txa.num_lanes);
6a18865d Niklas Söderlund 2018-11-28 600 }
6a18865d Niklas Söderlund 2018-11-28 601
6a18865d Niklas Söderlund 2018-11-28 602 if (vep.base.port == ADV748X_PORT_TXB) {
6a18865d Niklas Söderlund 2018-11-28 603 if (num_lanes != 1) {
6a18865d Niklas Söderlund 2018-11-28 604 adv_err(state, "TXB: Invalid number (%u) of lanes\n",
6a18865d Niklas Söderlund 2018-11-28 605 num_lanes);
6a18865d Niklas Söderlund 2018-11-28 606 return -EINVAL;
6a18865d Niklas Söderlund 2018-11-28 607 }
6a18865d Niklas Söderlund 2018-11-28 608
6a18865d Niklas Söderlund 2018-11-28 609 state->txb.num_lanes = num_lanes;
6a18865d Niklas Söderlund 2018-11-28 610 adv_dbg(state, "TXB: using %u lanes\n", state->txb.num_lanes);
6a18865d Niklas Söderlund 2018-11-28 611 }
6a18865d Niklas Söderlund 2018-11-28 612
6a18865d Niklas Söderlund 2018-11-28 613 return 0;
6a18865d Niklas Söderlund 2018-11-28 614 }
6a18865d Niklas Söderlund 2018-11-28 615
:::::: The code at line 585 was first introduced by commit
:::::: 6a18865da8e3ebc16b7783c126fbb18be91b5622 media: i2c: adv748x: store number of CSI-2 lanes described in device tree
:::::: TO: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
:::::: CC: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
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