Hi Nuno, kernel test robot noticed the following build warnings:
[auto build test WARNING on arnd-asm-generic/master] [also build test WARNING on arm64/for-next/core linus/master v6.6-rc3 next-20230929] [cannot apply to tip/x86/core] [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/hyperv-tlfs-Change-shared-HV_REGISTER_-defines-to-HV_MSR_/20230930-041305 base: https://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic.git master patch link: https://lore.kernel.org/r/1696010501-24584-9-git-send-email-nunodasneves%40linux.microsoft.com patch subject: [PATCH v4 08/15] Drivers: hv: Introduce per-cpu event ring tail config: x86_64-randconfig-123-20230930 (https://download.01.org/0day-ci/archive/20230930/202309301948.cyce3y0p-...@intel.com/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230930/202309301948.cyce3y0p-...@intel.com/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 <l...@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202309301948.cyce3y0p-...@intel.com/ sparse warnings: (new ones prefixed by >>) >> drivers/hv/hv_common.c:98:21: sparse: sparse: incorrect type in argument 1 >> (different address spaces) @@ expected void [noderef] __percpu *__pdata >> @@ got unsigned char [noderef] [usertype] __percpu **extern >> [addressable] [toplevel] hv_synic_eventring_tail @@ drivers/hv/hv_common.c:98:21: sparse: expected void [noderef] __percpu *__pdata drivers/hv/hv_common.c:98:21: sparse: got unsigned char [noderef] [usertype] __percpu **extern [addressable] [toplevel] hv_synic_eventring_tail >> drivers/hv/hv_common.c:349:41: sparse: sparse: incorrect type in assignment >> (different address spaces) @@ expected unsigned char [noderef] >> [usertype] __percpu **extern [addressable] [assigned] [toplevel] >> hv_synic_eventring_tail @@ got unsigned char [usertype] *[noderef] >> __percpu * @@ drivers/hv/hv_common.c:349:41: sparse: expected unsigned char [noderef] [usertype] __percpu **extern [addressable] [assigned] [toplevel] hv_synic_eventring_tail drivers/hv/hv_common.c:349:41: sparse: got unsigned char [usertype] *[noderef] __percpu * >> drivers/hv/hv_common.c:399:55: sparse: sparse: incorrect type in initializer >> (different address spaces) @@ expected void const [noderef] __percpu >> *__vpp_verify @@ got unsigned char [noderef] [usertype] __percpu ** @@ drivers/hv/hv_common.c:399:55: sparse: expected void const [noderef] __percpu *__vpp_verify drivers/hv/hv_common.c:399:55: sparse: got unsigned char [noderef] [usertype] __percpu ** vim +98 drivers/hv/hv_common.c 74 75 /* 76 * Hyper-V specific initialization and shutdown code that is 77 * common across all architectures. Called from architecture 78 * specific initialization functions. 79 */ 80 81 void __init hv_common_free(void) 82 { 83 unregister_sysctl_table(hv_ctl_table_hdr); 84 hv_ctl_table_hdr = NULL; 85 86 if (ms_hyperv.misc_features & HV_FEATURE_GUEST_CRASH_MSR_AVAILABLE) 87 hv_kmsg_dump_unregister(); 88 89 kfree(hv_vp_index); 90 hv_vp_index = NULL; 91 92 free_percpu(hyperv_pcpu_output_arg); 93 hyperv_pcpu_output_arg = NULL; 94 95 free_percpu(hyperv_pcpu_input_arg); 96 hyperv_pcpu_input_arg = NULL; 97 > 98 free_percpu(hv_synic_eventring_tail); 99 hv_synic_eventring_tail = NULL; 100 } 101 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
