tree: https://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux.git hyperv-next head: 9c9e1c68259d6cf8a348289fd13ed8f320c0d662 commit: ad989287208ec5e689574916ecffe730f4592a86 [25/32] x86/hyperv: provide a bunch of helper functions config: x86_64-randconfig-s022-20210209 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.3-215-g0fb77bb6-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux.git/commit/?... git remote add hyperv-linux https://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux.git git fetch --no-tags hyperv-linux hyperv-next git checkout ad989287208ec5e689574916ecffe730f4592a86 # save the attached .config to linux build tree make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; "sparse warnings: (new ones prefixed by >>)" arch/x86/hyperv/hv_proc.c:83:23: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void const [noderef] __percpu *__vpp_verify @@ got void [noderef] __percpu ** @@ arch/x86/hyperv/hv_proc.c:83:23: sparse: expected void const [noderef] __percpu *__vpp_verify arch/x86/hyperv/hv_proc.c:83:23: sparse: got void [noderef] __percpu ** arch/x86/hyperv/hv_proc.c:83:20: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct hv_deposit_memory *input_page @@ got void [noderef] __percpu * @@ arch/x86/hyperv/hv_proc.c:83:20: sparse: expected struct hv_deposit_memory *input_page arch/x86/hyperv/hv_proc.c:83:20: sparse: got void [noderef] __percpu * arch/x86/hyperv/hv_proc.c:136:26: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void const [noderef] __percpu *__vpp_verify @@ got void [noderef] __percpu ** @@ arch/x86/hyperv/hv_proc.c:136:26: sparse: expected void const [noderef] __percpu *__vpp_verify arch/x86/hyperv/hv_proc.c:136:26: sparse: got void [noderef] __percpu ** arch/x86/hyperv/hv_proc.c:136:23: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct hv_add_logical_processor_in *input @@ got void [noderef] __percpu * @@ arch/x86/hyperv/hv_proc.c:136:23: sparse: expected struct hv_add_logical_processor_in *input arch/x86/hyperv/hv_proc.c:136:23: sparse: got void [noderef] __percpu * arch/x86/hyperv/hv_proc.c:138:27: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void const [noderef] __percpu *__vpp_verify @@ got void [noderef] __percpu ** @@ arch/x86/hyperv/hv_proc.c:138:27: sparse: expected void const [noderef] __percpu *__vpp_verify arch/x86/hyperv/hv_proc.c:138:27: sparse: got void [noderef] __percpu ** arch/x86/hyperv/hv_proc.c:138:24: sparse: expected struct hv_add_logical_processor_out *output arch/x86/hyperv/hv_proc.c:138:24: sparse: got void [noderef] __percpu * arch/x86/hyperv/hv_proc.c:186:26: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void const [noderef] __percpu *__vpp_verify @@ got void [noderef] __percpu ** @@ arch/x86/hyperv/hv_proc.c:186:26: sparse: expected void const [noderef] __percpu *__vpp_verify arch/x86/hyperv/hv_proc.c:186:26: sparse: got void [noderef] __percpu ** arch/x86/hyperv/hv_proc.c:186:23: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct hv_create_vp *input @@ got void [noderef] __percpu * @@ arch/x86/hyperv/hv_proc.c:186:23: sparse: expected struct hv_create_vp *input arch/x86/hyperv/hv_proc.c:186:23: sparse: got void [noderef] __percpu * vim +138 arch/x86/hyperv/hv_proc.c 118 119 int hv_call_add_logical_proc(int node, u32 lp_index, u32 apic_id) 120 { 121 struct hv_add_logical_processor_in *input; 122 struct hv_add_logical_processor_out *output; 123 u64 status; 124 unsigned long flags; 125 int ret = 0; 126 int pxm = node_to_pxm(node); 127 128 /* 129 * When adding a logical processor, the hypervisor may return 130 * HV_STATUS_INSUFFICIENT_MEMORY. When that happens, we deposit more 131 * pages and retry. 132 */ 133 do { 134 local_irq_save(flags); 135 137 /* We don't do anything with the output right now */ 139 140 input->lp_index = lp_index; 141 input->apic_id = apic_id; 142 input->flags = 0; 143 input->proximity_domain_info.domain_id = pxm; 144 input->proximity_domain_info.flags.reserved = 0; 145 input->proximity_domain_info.flags.proximity_info_valid = 1; 146 input->proximity_domain_info.flags.proximity_preferred = 1; 147 status = hv_do_hypercall(HVCALL_ADD_LOGICAL_PROCESSOR, 148 input, output); 149 local_irq_restore(flags); 150 151 status &= HV_HYPERCALL_RESULT_MASK; 152 153 if (status != HV_STATUS_INSUFFICIENT_MEMORY) { 154 if (status != HV_STATUS_SUCCESS) { 155 pr_err("%s: cpu %u apic ID %u, %lld\n", __func__, 156 lp_index, apic_id, status); 157 ret = status; 158 } 159 break; 160 } 161 ret = hv_call_deposit_pages(node, hv_current_partition_id, 1); 162 } while (!ret); 163 164 return ret; 165 } 166 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org