Hi Alyssa, kernel test robot noticed the following build errors: [auto build test ERROR on 2014c95afecee3e76ca4a56956a936e23283f05b] url: https://github.com/intel-lab-lkp/linux/commits/Alyssa-Rosenzweig/dt-bindings-pci-apple-pcie-Add-t6020-support/20250212-035900 base: 2014c95afecee3e76ca4a56956a936e23283f05b patch link: https://lore.kernel.org/r/20250211-pcie-t6-v1-7-b60e6d2501bb%40rosenzweig.io patch subject: [PATCH 7/7] PCI: apple: Add T602x PCIe support config: s390-randconfig-002-20250213 (https://download.01.org/0day-ci/archive/20250213/202502131258.hhEIy45J-lkp@xxxxxxxxx/config) compiler: clang version 21.0.0git (https://github.com/llvm/llvm-project 6807164500e9920638e2ab0cdb4bf8321d24f8eb) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250213/202502131258.hhEIy45J-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202502131258.hhEIy45J-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): >> drivers/pci/controller/pcie-apple.c:467:19: error: call to undeclared function 'FIELD_PREP'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 467 | writel_relaxed(FIELD_PREP(PORT_MSIMAP_TARGET, i) | | ^ 1 error generated. vim +/FIELD_PREP +467 drivers/pci/controller/pcie-apple.c 429 430 static int apple_pcie_port_setup_irq(struct apple_pcie_port *port) 431 { 432 struct fwnode_handle *fwnode = &port->np->fwnode; 433 struct apple_pcie *pcie = port->pcie; 434 unsigned int irq; 435 436 /* FIXME: consider moving each interrupt under each port */ 437 irq = irq_of_parse_and_map(to_of_node(dev_fwnode(port->pcie->dev)), 438 port->idx); 439 if (!irq) 440 return -ENXIO; 441 442 port->domain = irq_domain_create_linear(fwnode, 32, 443 &apple_port_irq_domain_ops, 444 port); 445 if (!port->domain) 446 return -ENOMEM; 447 448 /* Disable all interrupts */ 449 writel_relaxed(~0, port->base + PORT_INTMSK); 450 writel_relaxed(~0, port->base + PORT_INTSTAT); 451 writel_relaxed(~0, port->base + PORT_LINKCMDSTS); 452 453 irq_set_chained_handler_and_data(irq, apple_port_irq_handler, port); 454 455 /* Configure MSI base address */ 456 BUILD_BUG_ON(upper_32_bits(DOORBELL_ADDR)); 457 writel_relaxed(lower_32_bits(DOORBELL_ADDR), 458 port->base + pcie->hw->port_msiaddr); 459 if (pcie->hw->port_msiaddr_hi) 460 writel_relaxed(0, port->base + pcie->hw->port_msiaddr_hi); 461 462 /* Enable MSIs, shared between all ports */ 463 if (pcie->hw->port_msimap) { 464 int i; 465 466 for (i = 0; i < pcie->nvecs; i++) { > 467 writel_relaxed(FIELD_PREP(PORT_MSIMAP_TARGET, i) | 468 PORT_MSIMAP_ENABLE, 469 port->base + pcie->hw->port_msimap + 4 * i); 470 } 471 472 writel_relaxed(PORT_MSICFG_EN, port->base + PORT_MSICFG); 473 } else { 474 writel_relaxed(0, port->base + PORT_MSIBASE); 475 writel_relaxed((ilog2(pcie->nvecs) << PORT_MSICFG_L2MSINUM_SHIFT) | 476 PORT_MSICFG_EN, port->base + PORT_MSICFG); 477 } 478 479 return 0; 480 } 481 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki