Hi Ben, [FYI, it's a private test report for your RFC patch.] [auto build test WARNING on pm/linux-next] [also build test WARNING on linus/master linux/master v5.10-rc3 next-20201113] [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/Ben-Widawsky/CXL-2-0-Support/202... base: https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git linux-next config: i386-allyesconfig (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 reproduce (this is a W=1 build): # https://github.com/0day-ci/linux/commit/a138b84a65bc7931b234fc14497d8cfe5... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Ben-Widawsky/CXL-2-0-Support/20201111-134547 git checkout a138b84a65bc7931b234fc14497d8cfe53d736f2 # save the attached .config to linux build tree make W=1 ARCH=i386 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/acpi.h:15, from drivers/cxl/acpi.c:10: drivers/cxl/acpi.c: In function 'acpi_cxl_add': 45 | dev_info(dev, "found CEDT at startup: %lld bytes\n", sz); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/dev_printk.h:19:22: note: in definition of macro 'dev_fmt' 19 | #define dev_fmt(fmt) fmt | ^~~ drivers/cxl/acpi.c:45:2: note: in expansion of macro 'dev_info' 45 | dev_info(dev, "found CEDT at startup: %lld bytes\n", sz); | ^~~~~~~~ drivers/cxl/acpi.c:45:43: note: format string is defined here 45 | dev_info(dev, "found CEDT at startup: %lld bytes\n", sz); | ~~~^ | | | long long int | %d vim +45 drivers/cxl/acpi.c 25 26 static int acpi_cxl_add(struct acpi_device *adev) 27 { 28 struct acpi_cxl_desc *acpi_desc; 29 struct device *dev = &adev->dev; 30 struct acpi_table_header *tbl; 31 acpi_status status = AE_OK; 32 acpi_size sz; 33 int rc = 0; 34 35 status = acpi_get_table(ACPI_SIG_CEDT, 0, &tbl); 36 if (ACPI_FAILURE(status)) { 37 dev_err(dev, "failed to find CEDT at startup\n"); 38 return 0; 39 } 40 41 rc = devm_add_action_or_reset(dev, acpi_cedt_put_table, tbl); 42 if (rc) 43 return rc; 44 sz = tbl->length; 46 47 acpi_desc = devm_kzalloc(dev, sizeof(*acpi_desc), GFP_KERNEL); 48 if (!acpi_desc) 49 return -ENOMEM; 50 acpi_cxl_desc_init(acpi_desc, &adev->dev); 51 52 acpi_desc->acpi_header = *tbl; 53 54 return 0; 55 } 56 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org