Re: [PATCH] PCI / thunderbolt: Add quirk to handle incorrect Supported Link Speeds

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

Hi Sanrio,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on helgaas-pci/next]
[also build test WARNING on v5.16-rc8 next-20220107]
[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]

url:    https://github.com/0day-ci/linux/commits/Sanrio-Alvares/PCI-thunderbolt-Add-quirk-to-handle-incorrect-Supported-Link-Speeds/20220107-064444
base:   https://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git next
config: riscv-randconfig-s032-20220106 (https://download.01.org/0day-ci/archive/20220108/202201082217.CMkPI5k2-lkp@intel.com/config)
compiler: riscv64-linux-gcc (GCC) 11.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # apt-get install sparse
        # sparse version: v0.6.4-dirty
        # https://github.com/0day-ci/linux/commit/98f8f42acd1b8f46f3e6778fa58dd0d1cd005369
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Sanrio-Alvares/PCI-thunderbolt-Add-quirk-to-handle-incorrect-Supported-Link-Speeds/20220107-064444
        git checkout 98f8f42acd1b8f46f3e6778fa58dd0d1cd005369
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=riscv SHELL=/bin/bash drivers/pci/ kernel/bpf/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>


sparse warnings: (new ones prefixed by >>)
   drivers/pci/quirks.c:2323:57: sparse: sparse: restricted pci_power_t degrades to integer
>> drivers/pci/quirks.c:5304:6: sparse: sparse: symbol 'quirk_intel_tbt_supported_link_speeds' was not declared. Should it be static?

vim +/quirk_intel_tbt_supported_link_speeds +5304 drivers/pci/quirks.c

  5298	
  5299	/*
  5300	 * Intel Titan Ridge returns incorrect Supported Link Speeds Vector
  5301	 * when max Link Speed is 2.5GT/s. This results in an extra 1s delay during
  5302	 * resume_noirq with pcie tunneling enabled. Override that value:
  5303	 */
> 5304	void quirk_intel_tbt_supported_link_speeds(struct pci_dev *pdev)
  5305	{
  5306		pci_info(pdev, "applying Supported Link Speeds quirk\n");
  5307		pdev->supported_link_speed = PCIE_SPEED_2_5GT;
  5308	}
  5309	DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x15e7, quirk_intel_tbt_supported_link_speeds);
  5310	DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x15ea, quirk_intel_tbt_supported_link_speeds);
  5311	DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x15ef, quirk_intel_tbt_supported_link_speeds);
  5312	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org