KVM: x86: hyper-v: Drop redundant 'ex' parameter from kvm_hv_flush_tlb()

'struct kvm_hv_hcall' has all the required information already,
there's no need to pass 'ex' additionally.

No functional change intended.

Cc: stable@vger.kernel.org # 5.14.x
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20220222154642.684285-3-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c
index ea9abe45931c416583c0ba85e74b622508916367..c28a268ec93716b854f62c206c37ae1f84a86056 100644 (file)
--- a/arch/x86/kvm/hyperv.c
+++ b/arch/x86/kvm/hyperv.c
@@ -1749,7 +1749,7 @@ struct kvm_hv_hcall {
        sse128_t xmm[HV_HYPERCALL_MAX_XMM_REGISTERS];
 };
 
-static u64 kvm_hv_flush_tlb(struct kvm_vcpu *vcpu, struct kvm_hv_hcall *hc, bool ex)
+static u64 kvm_hv_flush_tlb(struct kvm_vcpu *vcpu, struct kvm_hv_hcall *hc)
 {
        int i;
        gpa_t gpa;
@@ -1764,7 +1764,8 @@ static u64 kvm_hv_flush_tlb(struct kvm_vcpu *vcpu, struct kvm_hv_hcall *hc, bool
        int sparse_banks_len;
        bool all_cpus;
 
-       if (!ex) {
+       if (hc->code == HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST ||
+           hc->code == HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE) {
                if (hc->fast) {
                        flush.address_space = hc->ingpa;
                        flush.flags = hc->outgpa;
@@ -2246,32 +2247,20 @@ int kvm_hv_hypercall(struct kvm_vcpu *vcpu)
                                kvm_hv_hypercall_complete_userspace;
                return 0;
        case HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST:
-               if (unlikely(!hc.rep_cnt || hc.rep_idx)) {
-                       ret = HV_STATUS_INVALID_HYPERCALL_INPUT;
-                       break;
-               }
-               ret = kvm_hv_flush_tlb(vcpu, &hc, false);
-               break;
-       case HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE:
-               if (unlikely(hc.rep)) {
-                       ret = HV_STATUS_INVALID_HYPERCALL_INPUT;
-                       break;
-               }
-               ret = kvm_hv_flush_tlb(vcpu, &hc, false);
-               break;
        case HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST_EX:
                if (unlikely(!hc.rep_cnt || hc.rep_idx)) {
                        ret = HV_STATUS_INVALID_HYPERCALL_INPUT;
                        break;
                }
-               ret = kvm_hv_flush_tlb(vcpu, &hc, true);
+               ret = kvm_hv_flush_tlb(vcpu, &hc);
                break;
+       case HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE:
        case HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE_EX:
                if (unlikely(hc.rep)) {
                        ret = HV_STATUS_INVALID_HYPERCALL_INPUT;
                        break;
                }
-               ret = kvm_hv_flush_tlb(vcpu, &hc, true);
+               ret = kvm_hv_flush_tlb(vcpu, &hc);
                break;
        case HVCALL_SEND_IPI:
                if (unlikely(hc.rep)) {