Re: [PATCH v19 7/7] ptp: arm/arm64: Enable ptp_kvm for arm/arm64

[Zenghui Yu]

On 2021/3/30 22:54, Marc Zyngier wrote:

+int kvm_arch_ptp_init(void)
+{
+       int ret;
+
+       ret = kvm_arm_hyp_service_available(ARM_SMCCC_KVM_FUNC_PTP);
+       if (ret <= 0)

kvm_arm_hyp_service_available() returns boolean. Maybe write as ?

        bool ret;

        ret = kvm_arm_hyp_service_available();
        if (!ret)
                return -ENODEV;

+               return -EOPNOTSUPP;
+
+       return 0;
+}