Hi, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on linux/master] [also build test WARNING on linus/master v5.10-rc4 next-20201117] [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/matthew-gerlach-linux-intel-com/... base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 09162bc32c880a791c6c0668ce0745cf7958f576 config: xtensa-randconfig-r015-20201116 (attached as .config) compiler: xtensa-linux-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/0day-ci/linux/commit/b7db30a055d8c6a2cb8fade07b60918c5... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review matthew-gerlach-linux-intel-com/fpga-dfl-optional-VSEC-for-start-of-dfl/20201117-092704 git checkout b7db30a055d8c6a2cb8fade07b60918c59ecceb7 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=xtensa If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): In file included from include/linux/device.h:15, from include/linux/pci.h:37, from drivers/fpga/dfl-pci.c:17: drivers/fpga/dfl-pci.c: In function 'find_dfl_in_cfg': 183 | dev_err(&pcidev->dev, "%s bad offset %u >= %llu\n", | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/dev_printk.h:19:22: note: in definition of macro 'dev_fmt' 19 | #define dev_fmt(fmt) fmt | ^~~ drivers/fpga/dfl-pci.c:183:4: note: in expansion of macro 'dev_err' 183 | dev_err(&pcidev->dev, "%s bad offset %u >= %llu\n", | ^~~~~~~ drivers/fpga/dfl-pci.c:183:50: note: format string is defined here 183 | dev_err(&pcidev->dev, "%s bad offset %u >= %llu\n", | ~~~^ | | | long long unsigned int | %u In file included from include/linux/device.h:15, from include/linux/pci.h:37, from drivers/fpga/dfl-pci.c:17: 194 | dev_err(&pcidev->dev, "%s unaliged start 0x%llx\n", | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/dev_printk.h:19:22: note: in definition of macro 'dev_fmt' 19 | #define dev_fmt(fmt) fmt | ^~~ drivers/fpga/dfl-pci.c:194:4: note: in expansion of macro 'dev_err' 194 | dev_err(&pcidev->dev, "%s unaliged start 0x%llx\n", | ^~~~~~~ drivers/fpga/dfl-pci.c:194:50: note: format string is defined here 194 | dev_err(&pcidev->dev, "%s unaliged start 0x%llx\n", | ~~~^ | | | long long unsigned int | %x vim +183 drivers/fpga/dfl-pci.c 128 129 static int find_dfl_in_cfg(struct pci_dev *pcidev, 130 struct dfl_fpga_enum_info *info) 131 { 132 u32 bar, offset, vndr_hdr, dfl_cnt, dfl_res; 133 int dfl_res_off, i, voff = 0; 134 resource_size_t start, len; 135 136 while ((voff = pci_find_next_ext_capability(pcidev, voff, PCI_EXT_CAP_ID_VNDR))) { 137 138 pci_read_config_dword(pcidev, voff + PCI_VNDR_HEADER, &vndr_hdr); 139 140 dev_dbg(&pcidev->dev, 141 "vendor-specific capability id 0x%x, rev 0x%x len 0x%x\n", 142 PCI_VNDR_HEADER_ID(vndr_hdr), 143 PCI_VNDR_HEADER_REV(vndr_hdr), 144 PCI_VNDR_HEADER_LEN(vndr_hdr)); 145 146 if (PCI_VNDR_HEADER_ID(vndr_hdr) == PCI_VNDR_ID_DFLS) 147 break; 148 } 149 150 if (!voff) { 151 dev_dbg(&pcidev->dev, "%s no VSEC found\n", __func__); 152 return -ENODEV; 153 } 154 155 pci_read_config_dword(pcidev, voff + PCI_VNDR_DFLS_CNT_OFFSET, &dfl_cnt); 156 dev_info(&pcidev->dev, "dfl_cnt %d\n", dfl_cnt); 157 for (i = 0; i < dfl_cnt; i++) { 158 dfl_res_off = voff + PCI_VNDR_DFLS_RES_OFFSET + 159 (i * sizeof(dfl_res)); 160 pci_read_config_dword(pcidev, dfl_res_off, &dfl_res); 161 162 dev_dbg(&pcidev->dev, "dfl_res 0x%x\n", dfl_res); 163 164 bar = dfl_res & PCI_VND_DFLS_RES_BAR_MASK; 165 166 if (bar >= PCI_STD_NUM_BARS) { 167 dev_err(&pcidev->dev, "%s bad bar number %d\n", 168 __func__, bar); 169 return -EINVAL; 170 } 171 172 len = pci_resource_len(pcidev, bar); 173 174 if (len == 0) { 175 dev_err(&pcidev->dev, "%s unmapped bar number %d\n", 176 __func__, bar); 177 return -EINVAL; 178 } 179 180 offset = dfl_res & ~PCI_VND_DFLS_RES_BAR_MASK; 181 182 if (offset >= len) { 184 __func__, offset, len); 185 return -EINVAL; 186 } 187 188 dev_info(&pcidev->dev, "%s BAR %d offset 0x%x\n", __func__, bar, offset); 189 190 start = pci_resource_start(pcidev, bar) + offset; 191 len -= offset; 192 193 if (!PAGE_ALIGNED(start)) { 195 __func__, start); 196 return -EINVAL; 197 } 198 199 dfl_fpga_enum_info_add_dfl(info, start, len); 200 } 201 202 return 0; 203 } 204 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org