Hi Michał, kernel test robot noticed the following build warnings: [auto build test WARNING on pci/for-linus] [also build test WARNING on drm-xe/drm-xe-next drm/drm-next drm-exynos/exynos-drm-next drm-intel/for-linux-next drm-intel/for-linux-next-fixes drm-misc/drm-misc-next drm-tip/drm-tip linus/master v6.11 next-20240919] [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/Micha-Winiarski/PCI-Add-support-for-VF-Resizable-Bar-extended-cap/20240920-064112 base: https://git.kernel.org/pub/scm/linux/kernel/git/pci/pci.git for-linus patch link: https://lore.kernel.org/r/20240919223557.1897608-2-michal.winiarski%40intel.com patch subject: [PATCH v2 1/3] PCI: Add support for VF Resizable Bar extended cap config: x86_64-kexec (https://download.01.org/0day-ci/archive/20240920/202409201629.QlC0MRbn-lkp@xxxxxxxxx/config) compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240920/202409201629.QlC0MRbn-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/202409201629.QlC0MRbn-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/pci/pci.c:1920:20: warning: variable 'res' set but not used [-Wunused-but-set-variable] 1920 | struct resource *res; | ^ 1 warning generated. vim +/res +1920 drivers/pci/pci.c 1903 1904 static void pci_restore_vf_rebar_state(struct pci_dev *pdev) 1905 { 1906 unsigned int pos, nbars, i; 1907 u32 ctrl; 1908 1909 if (!pdev->is_physfn) 1910 return; 1911 1912 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_VF_REBAR); 1913 if (!pos) 1914 return; 1915 1916 pci_read_config_dword(pdev, pos + PCI_REBAR_CTRL, &ctrl); 1917 nbars = FIELD_GET(PCI_REBAR_CTRL_NBAR_MASK, ctrl); 1918 1919 for (i = 0; i < nbars; i++, pos += 8) { > 1920 struct resource *res; 1921 int bar_idx, size; 1922 1923 pci_read_config_dword(pdev, pos + PCI_REBAR_CTRL, &ctrl); 1924 bar_idx = ctrl & PCI_REBAR_CTRL_BAR_IDX; 1925 res = pdev->resource + bar_idx; 1926 size = pci_rebar_bytes_to_size(pdev->sriov->barsz[bar_idx]); 1927 ctrl &= ~PCI_REBAR_CTRL_BAR_SIZE; 1928 ctrl |= FIELD_PREP(PCI_REBAR_CTRL_BAR_SIZE, size); 1929 pci_write_config_dword(pdev, pos + PCI_REBAR_CTRL, ctrl); 1930 } 1931 } 1932 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
