This probably doesn't matter much (KVM_MAX_VCPUS is much lower nowadays)
but valid_bank_mask is really u64 and not unsigned long.

Signed-off-by: Vitaly Kuznetsov <vkuzn...@redhat.com>
---
 arch/x86/kvm/hyperv.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c
index 6a19c8e3c432..eeb12eacd525 100644
--- a/arch/x86/kvm/hyperv.c
+++ b/arch/x86/kvm/hyperv.c
@@ -1300,7 +1300,7 @@ static u64 kvm_hv_flush_tlb(struct kvm_vcpu 
*current_vcpu, u64 ingpa,
        struct hv_tlb_flush flush;
        struct kvm_vcpu *vcpu;
        unsigned long vcpu_bitmap[BITS_TO_LONGS(KVM_MAX_VCPUS)] = {0};
-       unsigned long valid_bank_mask = 0;
+       u64 valid_bank_mask = 0;
        u64 sparse_banks[64];
        int sparse_banks_len, i;
        bool all_cpus;
@@ -1328,7 +1328,8 @@ static u64 kvm_hv_flush_tlb(struct kvm_vcpu 
*current_vcpu, u64 ingpa,
                all_cpus = flush_ex.hv_vp_set.format !=
                        HV_GENERIC_SET_SPARSE_4K;
 
-               sparse_banks_len = bitmap_weight(&valid_bank_mask, 64) *
+               sparse_banks_len =
+                       bitmap_weight((unsigned long *)&valid_bank_mask, 64) *
                        sizeof(sparse_banks[0]);
 
                if (!sparse_banks_len && !all_cpus)
-- 
2.17.1

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