Re: [PATCH v3 5/6] PCI: cadence: Add callback functions for RP and EP controller

[kernel test robot <lkp@intel.com>]

Hi,

kernel test robot noticed the following build errors:

[auto build test ERROR on a24588245776dafc227243a01bfbeb8a59bafba9]

url:    https://github.com/intel-lab-lkp/linux/commits/hans-zhang-cixtech-com/dt-bindings-pci-cadence-Extend-compatible-for-new-RP-configuration/20250414-094836
base:   a24588245776dafc227243a01bfbeb8a59bafba9
patch link:    https://lore.kernel.org/r/20250411103656.2740517-6-hans.zhang%40cixtech.com
patch subject: [PATCH v3 5/6] PCI: cadence: Add callback functions for RP and EP controller
config: arc-randconfig-001-20250414 (https://download.01.org/0day-ci/archive/20250414/202504141101.J2GJGhRZ-lkp@intel.com/config)
compiler: arc-linux-gcc (GCC) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250414/202504141101.J2GJGhRZ-lkp@intel.com/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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202504141101.J2GJGhRZ-lkp@intel.com/

All error/warnings (new ones prefixed by >>):

   In file included from drivers/pci/controller/cadence/pcie-cadence-host.c:13:
   drivers/pci/controller/cadence/pcie-cadence-host.c: In function 'cdns_pci_hpa_map_bus':
>> drivers/pci/controller/cadence/pcie-cadence.h:309:9: error: implicit declaration of function 'FIELD_PREP' [-Wimplicit-function-declaration]
     309 |         FIELD_PREP(CDNS_PCIE_HPA_AT_OB_REGION_PCI_ADDR0_NBITS_MASK, \
         |         ^~~~~~~~~~
   drivers/pci/controller/cadence/pcie-cadence-host.c:108:17: note: in expansion of macro 'CDNS_PCIE_HPA_AT_OB_REGION_PCI_ADDR0_NBITS'
     108 |         addr0 = CDNS_PCIE_HPA_AT_OB_REGION_PCI_ADDR0_NBITS(12) |
         |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
--
>> drivers/pci/controller/cadence/pcie-cadence-plat.c:59:23: error: 'cdns_pcie_hpa_startlink' undeclared here (not in a function); did you mean 'cdns_pcie_hpa_start_link'?
      59 |         .start_link = cdns_pcie_hpa_startlink,
         |                       ^~~~~~~~~~~~~~~~~~~~~~~
         |                       cdns_pcie_hpa_start_link
>> drivers/pci/controller/cadence/pcie-cadence-plat.c:58:35: warning: 'cdns_hpa_plat_ops' defined but not used [-Wunused-const-variable=]
      58 | static const struct cdns_pcie_ops cdns_hpa_plat_ops = {
         |                                   ^~~~~~~~~~~~~~~~~


vim +/FIELD_PREP +309 drivers/pci/controller/cadence/pcie-cadence.h

fc9e872310321c Manikandan K Pillai 2025-04-11  304  
fc9e872310321c Manikandan K Pillai 2025-04-11  305  /* Region r Outbound AXI to PCIe Address Translation Register 0 */
fc9e872310321c Manikandan K Pillai 2025-04-11  306  #define CDNS_PCIE_HPA_AT_OB_REGION_PCI_ADDR0(r) (0x1010 + ((r) & 0x1f) * 0x0080)
fc9e872310321c Manikandan K Pillai 2025-04-11  307  #define CDNS_PCIE_HPA_AT_OB_REGION_PCI_ADDR0_NBITS_MASK GENMASK(5, 0)
fc9e872310321c Manikandan K Pillai 2025-04-11  308  #define CDNS_PCIE_HPA_AT_OB_REGION_PCI_ADDR0_NBITS(nbits)           \
fc9e872310321c Manikandan K Pillai 2025-04-11 @309  	FIELD_PREP(CDNS_PCIE_HPA_AT_OB_REGION_PCI_ADDR0_NBITS_MASK, \
fc9e872310321c Manikandan K Pillai 2025-04-11  310  		   ((nbits) - 1))
fc9e872310321c Manikandan K Pillai 2025-04-11  311  #define CDNS_PCIE_HPA_AT_OB_REGION_PCI_ADDR0_DEVFN_MASK GENMASK(23, 16)
fc9e872310321c Manikandan K Pillai 2025-04-11  312  #define CDNS_PCIE_HPA_AT_OB_REGION_PCI_ADDR0_DEVFN(devfn) \
fc9e872310321c Manikandan K Pillai 2025-04-11  313  	FIELD_PREP(CDNS_PCIE_HPA_AT_OB_REGION_PCI_ADDR0_DEVFN_MASK, devfn)
fc9e872310321c Manikandan K Pillai 2025-04-11  314  #define CDNS_PCIE_HPA_AT_OB_REGION_PCI_ADDR0_BUS_MASK GENMASK(31, 24)
fc9e872310321c Manikandan K Pillai 2025-04-11  315  #define CDNS_PCIE_HPA_AT_OB_REGION_PCI_ADDR0_BUS(bus) \
fc9e872310321c Manikandan K Pillai 2025-04-11  316  	FIELD_PREP(CDNS_PCIE_HPA_AT_OB_REGION_PCI_ADDR0_BUS_MASK, bus)
fc9e872310321c Manikandan K Pillai 2025-04-11  317  

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