Hi Nuno, kernel test robot noticed the following build warnings:
[auto build test WARNING on next-20251205] [cannot apply to linus/master v6.18 v6.18-rc7 v6.18-rc6 v6.18] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Nuno-Das-Neves/mshv-Ignore-second-stats-page-map-result-failure/20251206-033756 base: next-20251205 patch link: https://lore.kernel.org/r/1764961122-31679-4-git-send-email-nunodasneves%40linux.microsoft.com patch subject: [PATCH v2 3/3] mshv: Add debugfs to view hypervisor statistics config: x86_64-randconfig-076-20251208 (https://download.01.org/0day-ci/archive/20251208/[email protected]/config) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251208/[email protected]/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <[email protected]> | Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/ All warnings (new ones prefixed by >>): >> drivers/hv/mshv_root_main.c:2369:1: warning: unused label 'destroy_irqds_wq' >> [-Wunused-label] 2369 | destroy_irqds_wq: | ^~~~~~~~~~~~~~~~~ 1 warning generated. vim +/destroy_irqds_wq +2369 drivers/hv/mshv_root_main.c 2299 2300 static int __init mshv_parent_partition_init(void) 2301 { 2302 int ret; 2303 struct device *dev; 2304 union hv_hypervisor_version_info version_info; 2305 2306 if (!hv_parent_partition() || is_kdump_kernel()) 2307 return -ENODEV; 2308 2309 if (hv_get_hypervisor_version(&version_info)) 2310 return -ENODEV; 2311 2312 ret = misc_register(&mshv_dev); 2313 if (ret) 2314 return ret; 2315 2316 dev = mshv_dev.this_device; 2317 2318 if (version_info.build_number < MSHV_HV_MIN_VERSION || 2319 version_info.build_number > MSHV_HV_MAX_VERSION) { 2320 dev_err(dev, "Running on unvalidated Hyper-V version\n"); 2321 dev_err(dev, "Versions: current: %u min: %u max: %u\n", 2322 version_info.build_number, MSHV_HV_MIN_VERSION, 2323 MSHV_HV_MAX_VERSION); 2324 } 2325 2326 mshv_root.synic_pages = alloc_percpu(struct hv_synic_pages); 2327 if (!mshv_root.synic_pages) { 2328 dev_err(dev, "Failed to allocate percpu synic page\n"); 2329 ret = -ENOMEM; 2330 goto device_deregister; 2331 } 2332 2333 ret = cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, "mshv_synic", 2334 mshv_synic_init, 2335 mshv_synic_cleanup); 2336 if (ret < 0) { 2337 dev_err(dev, "Failed to setup cpu hotplug state: %i\n", ret); 2338 goto free_synic_pages; 2339 } 2340 2341 mshv_cpuhp_online = ret; 2342 2343 ret = mshv_retrieve_scheduler_type(dev); 2344 if (ret) 2345 goto remove_cpu_state; 2346 2347 if (hv_root_partition()) 2348 ret = mshv_root_partition_init(dev); 2349 if (ret) 2350 goto remove_cpu_state; 2351 2352 mshv_init_vmm_caps(dev); 2353 2354 ret = mshv_debugfs_init(); 2355 if (ret) 2356 goto exit_partition; 2357 2358 ret = mshv_irqfd_wq_init(); 2359 if (ret) 2360 goto exit_debugfs; 2361 2362 spin_lock_init(&mshv_root.pt_ht_lock); 2363 hash_init(mshv_root.pt_htable); 2364 2365 hv_setup_mshv_handler(mshv_isr); 2366 2367 return 0; 2368 > 2369 destroy_irqds_wq: 2370 mshv_irqfd_wq_cleanup(); 2371 exit_debugfs: 2372 mshv_debugfs_exit(); 2373 exit_partition: 2374 if (hv_root_partition()) 2375 mshv_root_partition_exit(); 2376 remove_cpu_state: 2377 cpuhp_remove_state(mshv_cpuhp_online); 2378 free_synic_pages: 2379 free_percpu(mshv_root.synic_pages); 2380 device_deregister: 2381 misc_deregister(&mshv_dev); 2382 return ret; 2383 } 2384 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
