* [hyperv-linux:hyperv-next 31/32] arch/x86/hyperv/irqdomain.c:27:18: sparse: sparse: incorrect type in initializer (different address spaces)
@ 2021-02-09 19:57 kernel test robot
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From: kernel test robot @ 2021-02-09 19:57 UTC (permalink / raw)
To: kbuild-all
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux.git hyperv-next
head: 9c9e1c68259d6cf8a348289fd13ed8f320c0d662
commit: 6f9128509b3f298893a0102fac73035b05ad0aea [31/32] x86/hyperv: implement an MSI domain for root partition
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/?id=6f9128509b3f298893a0102fac73035b05ad0aea
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 6f9128509b3f298893a0102fac73035b05ad0aea
# 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@intel.com>
"sparse warnings: (new ones prefixed by >>)"
>> arch/x86/hyperv/irqdomain.c:27:18: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void const [noderef] __percpu *__vpp_verify @@ got void [noderef] __percpu ** @@
arch/x86/hyperv/irqdomain.c:27:18: sparse: expected void const [noderef] __percpu *__vpp_verify
arch/x86/hyperv/irqdomain.c:27:18: sparse: got void [noderef] __percpu **
arch/x86/hyperv/irqdomain.c:27:15: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct hv_input_map_device_interrupt *input @@ got void [noderef] __percpu * @@
arch/x86/hyperv/irqdomain.c:27:15: sparse: expected struct hv_input_map_device_interrupt *input
arch/x86/hyperv/irqdomain.c:27:15: sparse: got void [noderef] __percpu *
arch/x86/hyperv/irqdomain.c:28:19: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void const [noderef] __percpu *__vpp_verify @@ got void [noderef] __percpu ** @@
arch/x86/hyperv/irqdomain.c:28:19: sparse: expected void const [noderef] __percpu *__vpp_verify
arch/x86/hyperv/irqdomain.c:28:19: sparse: got void [noderef] __percpu **
arch/x86/hyperv/irqdomain.c:28:16: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct hv_output_map_device_interrupt *output @@ got void [noderef] __percpu * @@
arch/x86/hyperv/irqdomain.c:28:16: sparse: expected struct hv_output_map_device_interrupt *output
arch/x86/hyperv/irqdomain.c:28:16: sparse: got void [noderef] __percpu *
arch/x86/hyperv/irqdomain.c:80:18: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void const [noderef] __percpu *__vpp_verify @@ got void [noderef] __percpu ** @@
arch/x86/hyperv/irqdomain.c:80:18: sparse: expected void const [noderef] __percpu *__vpp_verify
arch/x86/hyperv/irqdomain.c:80:18: sparse: got void [noderef] __percpu **
>> arch/x86/hyperv/irqdomain.c:80:15: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct hv_input_unmap_device_interrupt *input @@ got void [noderef] __percpu * @@
arch/x86/hyperv/irqdomain.c:80:15: sparse: expected struct hv_input_unmap_device_interrupt *input
arch/x86/hyperv/irqdomain.c:80:15: sparse: got void [noderef] __percpu *
vim +27 arch/x86/hyperv/irqdomain.c
14
15 static int hv_map_interrupt(union hv_device_id device_id, bool level,
16 int cpu, int vector, struct hv_interrupt_entry *entry)
17 {
18 struct hv_input_map_device_interrupt *input;
19 struct hv_output_map_device_interrupt *output;
20 struct hv_device_interrupt_descriptor *intr_desc;
21 unsigned long flags;
22 u64 status;
23 int nr_bank, var_size;
24
25 local_irq_save(flags);
26
> 27 input = *this_cpu_ptr(hyperv_pcpu_input_arg);
28 output = *this_cpu_ptr(hyperv_pcpu_output_arg);
29
30 intr_desc = &input->interrupt_descriptor;
31 memset(input, 0, sizeof(*input));
32 input->partition_id = hv_current_partition_id;
33 input->device_id = device_id.as_uint64;
34 intr_desc->interrupt_type = HV_X64_INTERRUPT_TYPE_FIXED;
35 intr_desc->vector_count = 1;
36 intr_desc->target.vector = vector;
37
38 if (level)
39 intr_desc->trigger_mode = HV_INTERRUPT_TRIGGER_MODE_LEVEL;
40 else
41 intr_desc->trigger_mode = HV_INTERRUPT_TRIGGER_MODE_EDGE;
42
43 intr_desc->target.vp_set.valid_bank_mask = 0;
44 intr_desc->target.vp_set.format = HV_GENERIC_SET_SPARSE_4K;
45 nr_bank = cpumask_to_vpset(&(intr_desc->target.vp_set), cpumask_of(cpu));
46 if (nr_bank < 0) {
47 local_irq_restore(flags);
48 pr_err("%s: unable to generate VP set\n", __func__);
49 return EINVAL;
50 }
51 intr_desc->target.flags = HV_DEVICE_INTERRUPT_TARGET_PROCESSOR_SET;
52
53 /*
54 * var-sized hypercall, var-size starts after vp_mask (thus
55 * vp_set.format does not count, but vp_set.valid_bank_mask
56 * does).
57 */
58 var_size = nr_bank + 1;
59
60 status = hv_do_rep_hypercall(HVCALL_MAP_DEVICE_INTERRUPT, 0, var_size,
61 input, output);
62 *entry = output->interrupt_entry;
63
64 local_irq_restore(flags);
65
66 if ((status & HV_HYPERCALL_RESULT_MASK) != HV_STATUS_SUCCESS)
67 pr_err("%s: hypercall failed, status %lld\n", __func__, status);
68
69 return status & HV_HYPERCALL_RESULT_MASK;
70 }
71
72 static int hv_unmap_interrupt(u64 id, struct hv_interrupt_entry *old_entry)
73 {
74 unsigned long flags;
75 struct hv_input_unmap_device_interrupt *input;
76 struct hv_interrupt_entry *intr_entry;
77 u64 status;
78
79 local_irq_save(flags);
> 80 input = *this_cpu_ptr(hyperv_pcpu_input_arg);
81
82 memset(input, 0, sizeof(*input));
83 intr_entry = &input->interrupt_entry;
84 input->partition_id = hv_current_partition_id;
85 input->device_id = id;
86 *intr_entry = *old_entry;
87
88 status = hv_do_hypercall(HVCALL_UNMAP_DEVICE_INTERRUPT, input, NULL);
89 local_irq_restore(flags);
90
91 return status & HV_HYPERCALL_RESULT_MASK;
92 }
93
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
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