From: Vitaly Kuznetsov <vkuznets@xxxxxxxxxx> 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@xxxxxxxxxxxxxxx # 5.14.x Signed-off-by: Vitaly Kuznetsov <vkuznets@xxxxxxxxxx> Message-Id: <20220222154642.684285-2-vkuznets@xxxxxxxxxx> Signed-off-by: Paolo Bonzini <pbonzini@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- arch/x86/kvm/hyperv.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) --- a/arch/x86/kvm/hyperv.c +++ b/arch/x86/kvm/hyperv.c @@ -1874,7 +1874,7 @@ static void kvm_send_ipi_to_many(struct } } -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_vc 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 *vc 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: Patches currently in stable-queue which might be from vkuznets@xxxxxxxxxx are queue-5.15/kvm-x86-hyper-v-drop-redundant-ex-parameter-from-kvm_hv_flush_tlb.patch queue-5.15/kvm-x86-hyper-v-hvcall_send_ipi_ex-is-an-xmm-fast-hypercall.patch queue-5.15/kvm-x86-hyper-v-fix-the-maximum-number-of-sparse-banks-for-xmm-fast-tlb-flush-hypercalls.patch queue-5.15/kvm-x86-hyper-v-drop-redundant-ex-parameter-from-kvm_hv_send_ipi.patch