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+rene...@ragnatech.se> :::::: CC: Mauro Carvalho Chehab <mchehab+sams...@kernel.org> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
.config.gz
Description: application/gzip
