Hi Gerd, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on rdma/for-next] [also build test WARNING on linus/master v5.19-rc1 next-20220607] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/intel-lab-lkp/linux/commits/Gerd-Rausch/RDMA-addr-Refresh-neighbour-entries-upon-rdma_resolve_addr/20220607-033902 base: https://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma.git for-next config: x86_64-randconfig-s021 (https://download.01.org/0day-ci/archive/20220607/202206071656.1c2rEvO3-lkp@xxxxxxxxx/config) compiler: gcc-11 (Debian 11.3.0-1) 11.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.4-18-g56afb504-dirty # https://github.com/intel-lab-lkp/linux/commit/b804d2f0ef3768bdf684b2769f8d9fd1306476e7 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Gerd-Rausch/RDMA-addr-Refresh-neighbour-entries-upon-rdma_resolve_addr/20220607-033902 git checkout b804d2f0ef3768bdf684b2769f8d9fd1306476e7 # save the config file mkdir build_dir && cp config build_dir/.config make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/infiniband/core/ If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@xxxxxxxxx> sparse warnings: (new ones prefixed by >>) >> drivers/infiniband/core/addr.c:425:56: sparse: sparse: incorrect type in argument 2 (different base types) @@ expected unsigned int [usertype] key @@ got restricted __be32 [usertype] dst_ip @@ drivers/infiniband/core/addr.c:425:56: sparse: expected unsigned int [usertype] key drivers/infiniband/core/addr.c:425:56: sparse: got restricted __be32 [usertype] dst_ip vim +425 drivers/infiniband/core/addr.c 383 384 static int addr4_resolve(struct sockaddr *src_sock, 385 const struct sockaddr *dst_sock, 386 struct rdma_dev_addr *addr, 387 struct rtable **prt) 388 { 389 struct sockaddr_in *src_in = (struct sockaddr_in *)src_sock; 390 const struct sockaddr_in *dst_in = 391 (const struct sockaddr_in *)dst_sock; 392 393 __be32 src_ip = src_in->sin_addr.s_addr; 394 __be32 dst_ip = dst_in->sin_addr.s_addr; 395 struct rtable *rt; 396 struct flowi4 fl4; 397 struct net_device *dev; 398 struct neighbour *neigh; 399 int ret; 400 401 memset(&fl4, 0, sizeof(fl4)); 402 fl4.daddr = dst_ip; 403 fl4.saddr = src_ip; 404 fl4.flowi4_oif = addr->bound_dev_if; 405 rt = ip_route_output_key(addr->net, &fl4); 406 ret = PTR_ERR_OR_ZERO(rt); 407 if (ret) 408 return ret; 409 410 src_in->sin_addr.s_addr = fl4.saddr; 411 412 addr->hoplimit = ip4_dst_hoplimit(&rt->dst); 413 414 /* trigger ARP-entry refresh if necessary, 415 * the same way "ip_finish_output2" does 416 */ 417 if (addr->bound_dev_if) { 418 dev = dev_get_by_index(addr->net, addr->bound_dev_if); 419 } else { 420 dev = rt->dst.dev; 421 dev_hold(dev); 422 } 423 if (dev) { 424 rcu_read_lock_bh(); > 425 neigh = __ipv4_neigh_lookup_noref(dev, dst_ip); 426 if (neigh) 427 neigh_event_send(neigh, NULL); 428 rcu_read_unlock_bh(); 429 dev_put(dev); 430 } 431 432 *prt = rt; 433 return 0; 434 } 435 -- 0-DAY CI Kernel Test Service https://01.org/lkp
