Re: [PATCH v3 3/6] KVM: x86: remove KVM_X86_OP_NULL and mark optional kvm_x86_ops

[Sean Christopherson]

On Thu, Feb 17, 2022, Paolo Bonzini wrote:
> The original use of KVM_X86_OP_NULL, which was to mark calls
> that do not follow a specific naming convention, is not in use
> anymore.  Instead, let's mark calls that are optional because
> they are always invoked within conditionals or with static_call_cond.
> Those that are _not_, i.e. those that are defined with KVM_X86_OP,
> must be defined by both vendor modules or some kind of NULL pointer
> dereference is bound to happen at runtime.
> 
> Signed-off-by: Paolo Bonzini <pbonzini@xxxxxxxxxx>
> ---

Reviewed-by: Sean Christopherson <seanjc@xxxxxxxxxx>