tree: https://github.com/Xilinx/linux-xlnx xlnx_rebase_v5.4 head: 629150468791671b5fde21363e643e87c5815b17 commit: 7132d44df68f906bc3d12d6b1437d208f91c88e5 [1005/1697] crypto: Adds user space interface for ALG_SET_KEY_TYPE config: alpha-randconfig-s031-20210113 (attached as .config) compiler: alpha-linux-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.3-208-g46a52ca4-dirty # https://github.com/Xilinx/linux-xlnx/commit/7132d44df68f906bc3d12d6b1437d... git remote add xlnx https://github.com/Xilinx/linux-xlnx git fetch --no-tags xlnx xlnx_rebase_v5.4 git checkout 7132d44df68f906bc3d12d6b1437d208f91c88e5 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=alpha If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; "sparse warnings: (new ones prefixed by >>)" crypto/af_alg.c:267:54: sparse: expected unsigned char const [usertype] *keytype crypto/af_alg.c:267:54: sparse: got char [noderef] <asn:1> *optval vim +267 crypto/af_alg.c 227 228 static int alg_setsockopt(struct socket *sock, int level, int optname, 229 char __user *optval, unsigned int optlen) 230 { 231 struct sock *sk = sock->sk; 232 struct alg_sock *ask = alg_sk(sk); 233 const struct af_alg_type *type; 234 int err = -EBUSY; 235 236 lock_sock(sk); 237 if (ask->refcnt) 238 goto unlock; 239 240 type = ask->type; 241 242 err = -ENOPROTOOPT; 243 if (level != SOL_ALG || !type) 244 goto unlock; 245 246 switch (optname) { 247 case ALG_SET_KEY: 248 if (sock->state == SS_CONNECTED) 249 goto unlock; 250 if (!type->setkey) 251 goto unlock; 252 253 err = alg_setkey(sk, optval, optlen); 254 break; 255 case ALG_SET_AEAD_AUTHSIZE: 256 if (sock->state == SS_CONNECTED) 257 goto unlock; 258 if (!type->setauthsize) 259 goto unlock; 260 err = type->setauthsize(ask->private, optlen); 261 break; 262 case ALG_SET_KEY_TYPE: 263 if (sock->state == SS_CONNECTED) 264 goto unlock; 265 if (!type->setkeytype) 266 goto unlock; 268 } 269 270 unlock: 271 release_sock(sk); 272 273 return err; 274 } 275 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org