tree: https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git rxrpc-rxgk head: 587caf020a85547c72e7e578382360f01bc7690b commit: 72a954e6016000c505dad7f37a2035fa097fbd11 [15/17] rxrpc: Hand server key parsing off to the security class config: openrisc-randconfig-r002-20200917 (attached as .config) compiler: or1k-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 git checkout 72a954e6016000c505dad7f37a2035fa097fbd11 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=openrisc 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 >>): net/rxrpc/server_key.c: In function 'rxrpc_preparse_s': 82 | if (sec < 0) | ^ # https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git/com... git remote add dhowells-fs https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git git fetch --no-tags dhowells-fs rxrpc-rxgk git checkout 72a954e6016000c505dad7f37a2035fa097fbd11 vim +82 net/rxrpc/server_key.c 63 64 /* 65 * Preparse a server secret key. 66 */ 67 static int rxrpc_preparse_s(struct key_preparsed_payload *prep) 68 { 69 const struct rxrpc_security *sec; 70 unsigned int service, sec_class; 71 int n; 72 73 _enter("%zu", prep->datalen); 74 75 if (!prep->orig_description) 76 return -EINVAL; 77 78 if (sscanf(prep->orig_description, "%u:%u%n", &service, &sec_class, &n) != 2) 79 return -EINVAL; 80 81 sec = rxrpc_security_lookup(sec_class); 83 return -ENOPKG; 84 85 prep->payload.data[1] = (struct rxrpc_security *)sec; 86 87 return sec->preparse_server_key(prep); 88 } 89 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org