[kbuild-all] [km13park-linux-1:master 2/3] drivers/scan_at_field/scan_at_field.c:218:18: error: implicit declaration of function 'scan_blob_sanity_check'

tree: https://github.com/km13park/linux-1.git master head: 77464b203e49ef9c4d957061005b4d54b0c5e633 commit: 4dab1d6923971a00f7de82497cb99b0a2a54f6d2 [2/3] drivers/saf: Introduce Scan At Field driver config: x86_64-randconfig-a016-20210420 (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://github.com/km13park/linux-1/commit/4dab1d6923971a00f7de82497cb99b... git remote add km13park-linux-1 https://github.com/km13park/linux-1.git git fetch --no-tags km13park-linux-1 master git checkout 4dab1d6923971a00f7de82497cb99b0a2a54f6d2 # save the attached .config to linux build tree make W=1 W=1 ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): drivers/scan_at_field/scan_at_field.c: In function 'load_scan_binary': drivers/scan_at_field/scan_at_field.c:210:10: warning: returning 'long int' from a function with return type 'const struct firmware *' makes pointer from integer without a cast [-Wint-conversion] 210 | return PTR_ERR(saf_pdev); | ^~~~~~~~~~~~~~~~~ 218 | if (is_hash && !scan_blob_sanity_check((void *)fw->data)) { | ^~~~~~~~~~~~~~~~~~~~~~ drivers/scan_at_field/scan_at_field.c: In function 'test_init': drivers/scan_at_field/scan_at_field.c:332:17: warning: variable 'root' set but not used [-Wunused-but-set-variable] 332 | struct device *root; | ^~~~ drivers/scan_at_field/scan_at_field.c: In function 'load_scan_binaries': drivers/scan_at_field/scan_at_field.c:303:1: warning: the frame size of 8736 bytes is larger than 8192 bytes [-Wframe-larger-than=] 303 | } | ^ cc1: some warnings being treated as errors vim +/scan_blob_sanity_check +218 drivers/scan_at_field/scan_at_field.c 197 198 /* 199 * Scan binary blob loading. Intel distributes the scan binary blob to vendors 200 * and vendor installed the hash and scan binary blobs to /lib/firmware/intel-saf. 201 */ 202 static const struct firmware *load_scan_binary(const char *path, bool is_hash) 203 { 204 const struct firmware *fw; 205 int err; 206 207 saf_pdev = platform_device_register_simple("saf", -1, NULL, 0); 208 if (IS_ERR(saf_pdev)) { 209 pr_err("Error: platform_device_register_simple"); 210 return PTR_ERR(saf_pdev); 211 } 212 err = request_firmware_direct(&fw, path, &saf_pdev->dev); 213 if (err) { 214 pr_err("Error: request_firmware_direct return"); 215 goto out; 216 } 217 219 pr_err("scan blob header sanity check failed"); 220 goto out; 221 } 222 out: 223 platform_device_unregister(saf_pdev); 224 225 return fw; 226 } 227 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org