arch/x86/hyperv/hv_init.c:366:21: sparse: sparse: incorrect type in assignment (different address spaces)

arch/x86/hyperv/hv_init.c:366:21: sparse: sparse: incorrect type in assignment (different address spaces)

[kernel test robot]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   5833291ab6de9c3e2374336b51c814e515e8f3a5
commit: 99a0f46af6a7715147e81c558d558021aad4e207 x86/hyperv: extract partition ID from Microsoft Hypervisor if necessary
date:   9 months ago
config: i386-randconfig-s002-20211109 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.4-dirty
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=99a0f46af6a7715147e81c558d558021aad4e207
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 99a0f46af6a7715147e81c558d558021aad4e207
        # save the attached .config to linux build tree
        make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=i386 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>


sparse warnings: (new ones prefixed by >>)
   arch/x86/hyperv/hv_init.c:90:30: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected void const [noderef] __percpu *__vpp_verify @@     got void [noderef] __percpu ** @@
   arch/x86/hyperv/hv_init.c:90:30: sparse:     expected void const [noderef] __percpu *__vpp_verify
   arch/x86/hyperv/hv_init.c:90:30: sparse:     got void [noderef] __percpu **
   arch/x86/hyperv/hv_init.c:95:39: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected void const [noderef] __percpu *__vpp_verify @@     got void [noderef] __percpu ** @@
   arch/x86/hyperv/hv_init.c:95:39: sparse:     expected void const [noderef] __percpu *__vpp_verify
   arch/x86/hyperv/hv_init.c:95:39: sparse:     got void [noderef] __percpu **
   arch/x86/hyperv/hv_init.c:227:30: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected void const [noderef] __percpu *__vpp_verify @@     got void [noderef] __percpu ** @@
   arch/x86/hyperv/hv_init.c:227:30: sparse:     expected void const [noderef] __percpu *__vpp_verify
   arch/x86/hyperv/hv_init.c:227:30: sparse:     got void [noderef] __percpu **
   arch/x86/hyperv/hv_init.c:234:39: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected void const [noderef] __percpu *__vpp_verify @@     got void [noderef] __percpu ** @@
   arch/x86/hyperv/hv_init.c:234:39: sparse:     expected void const [noderef] __percpu *__vpp_verify
   arch/x86/hyperv/hv_init.c:234:39: sparse:     got void [noderef] __percpu **
   arch/x86/hyperv/hv_init.c:366:24: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected void const [noderef] __percpu *__vpp_verify @@     got void [noderef] __percpu ** @@
   arch/x86/hyperv/hv_init.c:366:24: sparse:     expected void const [noderef] __percpu *__vpp_verify
   arch/x86/hyperv/hv_init.c:366:24: sparse:     got void [noderef] __percpu **
>> arch/x86/hyperv/hv_init.c:366:21: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct hv_get_partition_id *output_page @@     got void [noderef] __percpu * @@
   arch/x86/hyperv/hv_init.c:366:21: sparse:     expected struct hv_get_partition_id *output_page
   arch/x86/hyperv/hv_init.c:366:21: sparse:     got void [noderef] __percpu *
   arch/x86/hyperv/hv_init.c:407:31: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected void [noderef] __percpu **extern [addressable] [toplevel] hyperv_pcpu_input_arg @@     got void *[noderef] __percpu * @@
   arch/x86/hyperv/hv_init.c:407:31: sparse:     expected void [noderef] __percpu **extern [addressable] [toplevel] hyperv_pcpu_input_arg
   arch/x86/hyperv/hv_init.c:407:31: sparse:     got void *[noderef] __percpu *
   arch/x86/hyperv/hv_init.c:413:40: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected void [noderef] __percpu **extern [addressable] [toplevel] hyperv_pcpu_output_arg @@     got void *[noderef] __percpu * @@
   arch/x86/hyperv/hv_init.c:413:40: sparse:     expected void [noderef] __percpu **extern [addressable] [toplevel] hyperv_pcpu_output_arg
   arch/x86/hyperv/hv_init.c:413:40: sparse:     got void *[noderef] __percpu *

vim +366 arch/x86/hyperv/hv_init.c

   358	
   359	static void __init hv_get_partition_id(void)
   360	{
   361		struct hv_get_partition_id *output_page;
   362		u64 status;
   363		unsigned long flags;
   364	
   365		local_irq_save(flags);
 > 366		output_page = *this_cpu_ptr(hyperv_pcpu_output_arg);
   367		status = hv_do_hypercall(HVCALL_GET_PARTITION_ID, NULL, output_page);
   368		if ((status & HV_HYPERCALL_RESULT_MASK) != HV_STATUS_SUCCESS) {
   369			/* No point in proceeding if this failed */
   370			pr_err("Failed to get partition ID: %lld\n", status);
   371			BUG();
   372		}
   373		hv_current_partition_id = output_page->partition_id;
   374		local_irq_restore(flags);
   375	}
   376	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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