Re: [PATCH v3] PCI: dwc: Refactor code by using dw_pcie_clear_and_set_dword()

From: kernel test robot
Date: Fri Jun 27 2025 - 18:21:02 EST


Hi Hans,

kernel test robot noticed the following build errors:

[auto build test ERROR on pci/next]
[also build test ERROR on pci/for-linus linus/master v6.16-rc3 next-20250627]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url: https://github.com/intel-lab-lkp/linux/commits/Hans-Zhang/PCI-dwc-Refactor-code-by-using-dw_pcie_clear_and_set_dword/20250627-031223
base: https://git.kernel.org/pub/scm/linux/kernel/git/pci/pci.git next
patch link: https://lore.kernel.org/r/20250626145040.14180-3-18255117159%40163.com
patch subject: [PATCH v3] PCI: dwc: Refactor code by using dw_pcie_clear_and_set_dword()
config: arc-randconfig-001-20250628 (https://download.01.org/0day-ci/archive/20250628/202506280542.6ttkdrur-lkp@xxxxxxxxx/config)
compiler: arc-linux-gcc (GCC) 8.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250628/202506280542.6ttkdrur-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/202506280542.6ttkdrur-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

In file included from drivers/pci/controller/dwc/pcie-amd-mdb.c:21:
drivers/pci/controller/dwc/pcie-designware.h: In function 'dw_pcie_dbi_ro_wr_en':
>> drivers/pci/controller/dwc/pcie-designware.h:712:2: error: implicit declaration of function 'dw_pcie_clear_and_set_dword'; did you mean 'pcie_capability_set_dword'? [-Werror=implicit-function-declaration]
dw_pcie_clear_and_set_dword(pci, PCIE_MISC_CONTROL_1_OFF,
^~~~~~~~~~~~~~~~~~~~~~~~~~~
pcie_capability_set_dword
cc1: some warnings being treated as errors


vim +712 drivers/pci/controller/dwc/pcie-designware.h

709
710 static inline void dw_pcie_dbi_ro_wr_en(struct dw_pcie *pci)
711 {
> 712 dw_pcie_clear_and_set_dword(pci, PCIE_MISC_CONTROL_1_OFF,
713 0, PCIE_DBI_RO_WR_EN);
714 }
715

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