tree: https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git vhost head: 008842b2060c14544ff452483ffd2241d145c7b2 commit: 7620d51af29aa1c5d32150db2ac4b6187ef8af3a [30/44] vdpa/mlx5: Support configuring max data virtqueue config: powerpc-allmodconfig (https://download.01.org/0day-ci/archive/20220108/202201082258.aKRHnaJX-lkp@xxxxxxxxx/config) compiler: powerpc-linux-gcc (GCC) 11.2.0 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: v0.6.4-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git/commit/?id=7620d51af29aa1c5d32150db2ac4b6187ef8af3a git remote add mst-vhost https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git git fetch --no-tags mst-vhost vhost git checkout 7620d51af29aa1c5d32150db2ac4b6187ef8af3a # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=powerpc SHELL=/bin/bash drivers/vdpa/mlx5/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> sparse warnings: (new ones prefixed by >>) >> drivers/vdpa/mlx5/net/mlx5_vnet.c:1247:23: sparse: sparse: cast to restricted __le16 >> drivers/vdpa/mlx5/net/mlx5_vnet.c:1247:23: sparse: sparse: cast from restricted __virtio16 vim +1247 drivers/vdpa/mlx5/net/mlx5_vnet.c 1232 1233 static int create_rqt(struct mlx5_vdpa_net *ndev) 1234 { 1235 __be32 *list; 1236 int max_rqt; 1237 void *rqtc; 1238 int inlen; 1239 void *in; 1240 int i, j; 1241 int err; 1242 int num; 1243 1244 if (!(ndev->mvdev.actual_features & BIT_ULL(VIRTIO_NET_F_MQ))) 1245 num = 1; 1246 else > 1247 num = le16_to_cpu(ndev->config.max_virtqueue_pairs); 1248 1249 max_rqt = min_t(int, roundup_pow_of_two(num), 1250 1 << MLX5_CAP_GEN(ndev->mvdev.mdev, log_max_rqt_size)); 1251 if (max_rqt < 1) 1252 return -EOPNOTSUPP; 1253 1254 inlen = MLX5_ST_SZ_BYTES(create_rqt_in) + max_rqt * MLX5_ST_SZ_BYTES(rq_num); 1255 in = kzalloc(inlen, GFP_KERNEL); 1256 if (!in) 1257 return -ENOMEM; 1258 1259 MLX5_SET(create_rqt_in, in, uid, ndev->mvdev.res.uid); 1260 rqtc = MLX5_ADDR_OF(create_rqt_in, in, rqt_context); 1261 1262 MLX5_SET(rqtc, rqtc, list_q_type, MLX5_RQTC_LIST_Q_TYPE_VIRTIO_NET_Q); 1263 MLX5_SET(rqtc, rqtc, rqt_max_size, max_rqt); 1264 list = MLX5_ADDR_OF(rqtc, rqtc, rq_num[0]); 1265 for (i = 0, j = 0; i < max_rqt; i++, j += 2) 1266 list[i] = cpu_to_be32(ndev->vqs[j % (2 * num)].virtq_id); 1267 1268 MLX5_SET(rqtc, rqtc, rqt_actual_size, max_rqt); 1269 err = mlx5_vdpa_create_rqt(&ndev->mvdev, in, inlen, &ndev->res.rqtn); 1270 kfree(in); 1271 if (err) 1272 return err; 1273 1274 return 0; 1275 } 1276 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
