Hi Mario, kernel test robot noticed the following build warnings: [auto build test WARNING on pci/for-linus] [also build test WARNING on westeri-thunderbolt/next linus/master v6.6 next-20231031] [cannot apply to pci/next] [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/Mario-Limonciello/PCI-Ignore-PCIe-ports-used-for-tunneling-in-pcie_bandwidth_available/20231031-224221 base: https://git.kernel.org/pub/scm/linux/kernel/git/pci/pci.git for-linus patch link: https://lore.kernel.org/r/20231031133438.5299-2-mario.limonciello%40amd.com patch subject: [PATCH 2/2] PCI: Ignore PCIe ports used for tunneling in pcie_bandwidth_available() config: arc-randconfig-002-20231101 (https://download.01.org/0day-ci/archive/20231101/202311010646.KCczSLIW-lkp@xxxxxxxxx/config) compiler: arc-elf-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231101/202311010646.KCczSLIW-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/202311010646.KCczSLIW-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/pci/pci.c:6234: warning: Function parameter or member 'pdev' not described in 'pcie_is_tunneling_port' >> drivers/pci/pci.c:6234: warning: Excess function parameter 'dev' description in 'pcie_is_tunneling_port' Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for VIDEO_OV7670 Depends on [n]: MEDIA_SUPPORT [=y] && VIDEO_DEV [=y] && VIDEO_CAMERA_SENSOR [=n] Selected by [y]: - VIDEO_CAFE_CCIC [=y] && MEDIA_SUPPORT [=y] && MEDIA_PLATFORM_SUPPORT [=y] && MEDIA_PLATFORM_DRIVERS [=y] && V4L_PLATFORM_DRIVERS [=y] && PCI [=y] && I2C [=y] && VIDEO_DEV [=y] && COMMON_CLK [=y] vim +6234 drivers/pci/pci.c 6225 6226 /** 6227 * pcie_is_tunneling_port - Check if a PCI device is used for TBT3/USB4 tunneling 6228 * @dev: PCI device to check 6229 * 6230 * Returns true if the device is used for PCIe tunneling, false otherwise. 6231 */ 6232 static bool 6233 pcie_is_tunneling_port(struct pci_dev *pdev) > 6234 { 6235 struct device_link *link; 6236 struct pci_dev *supplier; 6237 6238 /* Intel TBT3 bridge */ 6239 if (pdev->is_thunderbolt) 6240 return true; 6241 6242 if (!pci_is_pcie(pdev)) 6243 return false; 6244 6245 if (pci_pcie_type(pdev) != PCI_EXP_TYPE_ROOT_PORT) 6246 return false; 6247 6248 /* PCIe root port used for tunneling linked to USB4 router */ 6249 list_for_each_entry(link, &pdev->dev.links.suppliers, c_node) { 6250 supplier = to_pci_dev(link->supplier); 6251 if (!supplier) 6252 continue; 6253 if (supplier->class == PCI_CLASS_SERIAL_USB_USB4) 6254 return true; 6255 } 6256 6257 return false; 6258 } 6259 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
