On Tue, 2022-02-22 at 16:46 +0100, Vitaly Kuznetsov wrote: > 'struct kvm_hv_hcall' has all the required information already, > there's no need to pass 'ex' additionally. > > No functional change intended. > > Signed-off-by: Vitaly Kuznetsov <vkuznets@xxxxxxxxxx> > --- > arch/x86/kvm/hyperv.c | 8 ++++---- > 1 file changed, 4 insertions(+), 4 deletions(-) > > diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c > index 6e38a7d22e97..15b6a7bd2346 100644 > --- a/arch/x86/kvm/hyperv.c > +++ b/arch/x86/kvm/hyperv.c > @@ -1875,7 +1875,7 @@ 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; > @@ -1889,7 +1889,7 @@ 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) { I am thinking, if we already touch this code, why not to use switch here instead on the hc->code, so that we can catch this function being called with something else than HVCALL_SEND_IPI_EX > if (!hc->fast) { > if (unlikely(kvm_read_guest(kvm, hc->ingpa, &send_ipi, > sizeof(send_ipi)))) > @@ -2279,14 +2279,14 @@ 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: Other than this minor nitpick: Reviewed-by: Maxim Levitsky <mlevitsk@xxxxxxxxxx> Best regards, Maxim Levitsky