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

commit 50e523dd79f6a856d793ce5711719abe27cffbf2 upstream.

'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: <20220222154642.684285-2-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c
index 2092834..4df7cb2 100644 (file)
--- a/arch/x86/kvm/hyperv.c
+++ b/arch/x86/kvm/hyperv.c
@@ -1874,7 +1874,7 @@ static void kvm_send_ipi_to_many(struct kvm *kvm, u32 vector,
        }
 }
 
-static u64 kvm_hv_send_ipi(struct kvm_vcpu *vcpu, struct kvm_hv_hcall *hc, bool ex)
+static u64 kvm_hv_send_ipi(struct kvm_vcpu *vcpu, struct kvm_hv_hcall *hc)
 {
        struct kvm *kvm = vcpu->kvm;
        struct hv_send_ipi_ex send_ipi_ex;
@@ -1888,7 +1888,7 @@ static u64 kvm_hv_send_ipi(struct kvm_vcpu *vcpu, struct kvm_hv_hcall *hc, bool
        u32 vector;
        bool all_cpus;
 
-       if (!ex) {
+       if (hc->code == HVCALL_SEND_IPI) {
                if (!hc->fast) {
                        if (unlikely(kvm_read_guest(kvm, hc->ingpa, &send_ipi,
                                                    sizeof(send_ipi))))
@@ -2278,14 +2278,14 @@ int kvm_hv_hypercall(struct kvm_vcpu *vcpu)
                        ret = HV_STATUS_INVALID_HYPERCALL_INPUT;
                        break;
                }
-               ret = kvm_hv_send_ipi(vcpu, &hc, false);
+               ret = kvm_hv_send_ipi(vcpu, &hc);
                break;
        case HVCALL_SEND_IPI_EX:
                if (unlikely(hc.fast || hc.rep)) {
                        ret = HV_STATUS_INVALID_HYPERCALL_INPUT;
                        break;
                }
-               ret = kvm_hv_send_ipi(vcpu, &hc, true);
+               ret = kvm_hv_send_ipi(vcpu, &hc);
                break;
        case HVCALL_POST_DEBUG_DATA:
        case HVCALL_RETRIEVE_DEBUG_DATA: