tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: ed8780e3f2ecc82645342d070c6b4e530532e680 commit: 4c8cf31885f69e86be0b5b9e6677a26797365e1d vhost: introduce vDPA-based backend date: 7 months ago :::::: branch date: 17 hours ago :::::: commit date: 7 months ago config: sh-randconfig-s031-20201028 (attached as .config) compiler: sh4-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: v0.6.3-56-gc09e8239-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4c8cf31885f69e86be0b5b9e6677a26797365e1d git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 4c8cf31885f69e86be0b5b9e6677a26797365e1d # 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=sh
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <[email protected]> "sparse warnings: (new ones prefixed by >>)" drivers/vhost/vdpa.c: note: in included file (through arch/sh/include/asm/unistd.h, include/uapi/linux/unistd.h, include/linux/compat.h, ...): ./arch/sh/include/generated/uapi/asm/unistd_32.h:411:37: sparse: sparse: no newline at end of file drivers/vhost/vdpa.c:303:13: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected unsigned int const *__gu_addr @@ got unsigned int [noderef] [usertype] <asn:1> * @@ >> drivers/vhost/vdpa.c:303:13: sparse: expected unsigned int const >> *__gu_addr drivers/vhost/vdpa.c:303:13: sparse: got unsigned int [noderef] [usertype] <asn:1> * drivers/vhost/vdpa.c:303:13: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:1> * @@ got unsigned int const *__gu_addr @@ drivers/vhost/vdpa.c:303:13: sparse: expected void const volatile [noderef] <asn:1> * >> drivers/vhost/vdpa.c:303:13: sparse: got unsigned int const *__gu_addr vim +303 drivers/vhost/vdpa.c 4c8cf31885f69e8 Tiwei Bie 2020-03-26 290 4c8cf31885f69e8 Tiwei Bie 2020-03-26 291 static long vhost_vdpa_vring_ioctl(struct vhost_vdpa *v, unsigned int cmd, 4c8cf31885f69e8 Tiwei Bie 2020-03-26 292 void __user *argp) 4c8cf31885f69e8 Tiwei Bie 2020-03-26 293 { 4c8cf31885f69e8 Tiwei Bie 2020-03-26 294 struct vdpa_device *vdpa = v->vdpa; 4c8cf31885f69e8 Tiwei Bie 2020-03-26 295 const struct vdpa_config_ops *ops = vdpa->config; 4c8cf31885f69e8 Tiwei Bie 2020-03-26 296 struct vdpa_callback cb; 4c8cf31885f69e8 Tiwei Bie 2020-03-26 297 struct vhost_virtqueue *vq; 4c8cf31885f69e8 Tiwei Bie 2020-03-26 298 struct vhost_vring_state s; 4c8cf31885f69e8 Tiwei Bie 2020-03-26 299 u8 status; 4c8cf31885f69e8 Tiwei Bie 2020-03-26 300 u32 idx; 4c8cf31885f69e8 Tiwei Bie 2020-03-26 301 long r; 4c8cf31885f69e8 Tiwei Bie 2020-03-26 302 4c8cf31885f69e8 Tiwei Bie 2020-03-26 @303 r = get_user(idx, (u32 __user *)argp); 4c8cf31885f69e8 Tiwei Bie 2020-03-26 304 if (r < 0) 4c8cf31885f69e8 Tiwei Bie 2020-03-26 305 return r; 4c8cf31885f69e8 Tiwei Bie 2020-03-26 306 4c8cf31885f69e8 Tiwei Bie 2020-03-26 307 if (idx >= v->nvqs) 4c8cf31885f69e8 Tiwei Bie 2020-03-26 308 return -ENOBUFS; 4c8cf31885f69e8 Tiwei Bie 2020-03-26 309 4c8cf31885f69e8 Tiwei Bie 2020-03-26 310 idx = array_index_nospec(idx, v->nvqs); 4c8cf31885f69e8 Tiwei Bie 2020-03-26 311 vq = &v->vqs[idx]; 4c8cf31885f69e8 Tiwei Bie 2020-03-26 312 4c8cf31885f69e8 Tiwei Bie 2020-03-26 313 status = ops->get_status(vdpa); 4c8cf31885f69e8 Tiwei Bie 2020-03-26 314 4c8cf31885f69e8 Tiwei Bie 2020-03-26 315 if (cmd == VHOST_VDPA_SET_VRING_ENABLE) { 4c8cf31885f69e8 Tiwei Bie 2020-03-26 316 if (copy_from_user(&s, argp, sizeof(s))) 4c8cf31885f69e8 Tiwei Bie 2020-03-26 317 return -EFAULT; 4c8cf31885f69e8 Tiwei Bie 2020-03-26 318 ops->set_vq_ready(vdpa, idx, s.num); 4c8cf31885f69e8 Tiwei Bie 2020-03-26 319 return 0; 4c8cf31885f69e8 Tiwei Bie 2020-03-26 320 } 4c8cf31885f69e8 Tiwei Bie 2020-03-26 321 4c8cf31885f69e8 Tiwei Bie 2020-03-26 322 if (cmd == VHOST_GET_VRING_BASE) 4c8cf31885f69e8 Tiwei Bie 2020-03-26 323 vq->last_avail_idx = ops->get_vq_state(v->vdpa, idx); 4c8cf31885f69e8 Tiwei Bie 2020-03-26 324 4c8cf31885f69e8 Tiwei Bie 2020-03-26 325 r = vhost_vring_ioctl(&v->vdev, cmd, argp); 4c8cf31885f69e8 Tiwei Bie 2020-03-26 326 if (r) 4c8cf31885f69e8 Tiwei Bie 2020-03-26 327 return r; 4c8cf31885f69e8 Tiwei Bie 2020-03-26 328 4c8cf31885f69e8 Tiwei Bie 2020-03-26 329 switch (cmd) { 4c8cf31885f69e8 Tiwei Bie 2020-03-26 330 case VHOST_SET_VRING_ADDR: 4c8cf31885f69e8 Tiwei Bie 2020-03-26 331 if (ops->set_vq_address(vdpa, idx, 4c8cf31885f69e8 Tiwei Bie 2020-03-26 332 (u64)(uintptr_t)vq->desc, 4c8cf31885f69e8 Tiwei Bie 2020-03-26 333 (u64)(uintptr_t)vq->avail, 4c8cf31885f69e8 Tiwei Bie 2020-03-26 334 (u64)(uintptr_t)vq->used)) 4c8cf31885f69e8 Tiwei Bie 2020-03-26 335 r = -EINVAL; 4c8cf31885f69e8 Tiwei Bie 2020-03-26 336 break; 4c8cf31885f69e8 Tiwei Bie 2020-03-26 337 4c8cf31885f69e8 Tiwei Bie 2020-03-26 338 case VHOST_SET_VRING_BASE: 4c8cf31885f69e8 Tiwei Bie 2020-03-26 339 if (ops->set_vq_state(vdpa, idx, vq->last_avail_idx)) 4c8cf31885f69e8 Tiwei Bie 2020-03-26 340 r = -EINVAL; 4c8cf31885f69e8 Tiwei Bie 2020-03-26 341 break; 4c8cf31885f69e8 Tiwei Bie 2020-03-26 342 4c8cf31885f69e8 Tiwei Bie 2020-03-26 343 case VHOST_SET_VRING_CALL: 4c8cf31885f69e8 Tiwei Bie 2020-03-26 344 if (vq->call_ctx) { 4c8cf31885f69e8 Tiwei Bie 2020-03-26 345 cb.callback = vhost_vdpa_virtqueue_cb; 4c8cf31885f69e8 Tiwei Bie 2020-03-26 346 cb.private = vq; 4c8cf31885f69e8 Tiwei Bie 2020-03-26 347 } else { 4c8cf31885f69e8 Tiwei Bie 2020-03-26 348 cb.callback = NULL; 4c8cf31885f69e8 Tiwei Bie 2020-03-26 349 cb.private = NULL; 4c8cf31885f69e8 Tiwei Bie 2020-03-26 350 } 4c8cf31885f69e8 Tiwei Bie 2020-03-26 351 ops->set_vq_cb(vdpa, idx, &cb); 4c8cf31885f69e8 Tiwei Bie 2020-03-26 352 break; 4c8cf31885f69e8 Tiwei Bie 2020-03-26 353 4c8cf31885f69e8 Tiwei Bie 2020-03-26 354 case VHOST_SET_VRING_NUM: 4c8cf31885f69e8 Tiwei Bie 2020-03-26 355 ops->set_vq_num(vdpa, idx, vq->num); 4c8cf31885f69e8 Tiwei Bie 2020-03-26 356 break; 4c8cf31885f69e8 Tiwei Bie 2020-03-26 357 } 4c8cf31885f69e8 Tiwei Bie 2020-03-26 358 4c8cf31885f69e8 Tiwei Bie 2020-03-26 359 return r; 4c8cf31885f69e8 Tiwei Bie 2020-03-26 360 } 4c8cf31885f69e8 Tiwei Bie 2020-03-26 361 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/[email protected]
.config.gz
Description: application/gzip
