KVM: Drop 'except' parameter from kvm_make_vcpus_request_mask()

Both remaining callers of kvm_make_vcpus_request_mask() pass 'NULL' for
'except' parameter so it can just be dropped.

No functional change intended ©.

Suggested-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20210903075141.403071-6-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

arch/x86/kvm/hyperv.c

@@ -1849,7 +1849,7 @@ static u64 kvm_hv_flush_tlb(struct kvm_vcpu *vcpu, struct kvm_hv_hcall *hc, bool
 						    vp_bitmap, vcpu_bitmap);
 
 		kvm_make_vcpus_request_mask(kvm, KVM_REQ_TLB_FLUSH_GUEST,
-					    NULL, vcpu_mask, &hv_vcpu->tlb_flush);
+					    vcpu_mask, &hv_vcpu->tlb_flush);
 	}
 
 ret_success:

arch/x86/kvm/x86.c

@@ -9247,7 +9247,7 @@ void kvm_make_scan_ioapic_request_mask(struct kvm *kvm,
 	zalloc_cpumask_var(&cpus, GFP_ATOMIC);
 
 	kvm_make_vcpus_request_mask(kvm, KVM_REQ_SCAN_IOAPIC,
-				    NULL, vcpu_bitmap, cpus);
+				    vcpu_bitmap, cpus);
 
 	free_cpumask_var(cpus);
 }

include/linux/kvm_host.h

@@ -160,7 +160,6 @@ static inline bool is_error_page(struct page *page)
 #define KVM_ARCH_REQ(nr)           KVM_ARCH_REQ_FLAGS(nr, 0)
 
 bool kvm_make_vcpus_request_mask(struct kvm *kvm, unsigned int req,
-				 struct kvm_vcpu *except,
 				 unsigned long *vcpu_bitmap, cpumask_var_t tmp);
 bool kvm_make_all_cpus_request(struct kvm *kvm, unsigned int req);
 bool kvm_make_all_cpus_request_except(struct kvm *kvm, unsigned int req,

virt/kvm/kvm_main.c

@@ -288,7 +288,6 @@ static void kvm_make_vcpu_request(struct kvm *kvm, struct kvm_vcpu *vcpu,
 }
 
 bool kvm_make_vcpus_request_mask(struct kvm *kvm, unsigned int req,
-				 struct kvm_vcpu *except,
 				 unsigned long *vcpu_bitmap, cpumask_var_t tmp)
 {
 	struct kvm_vcpu *vcpu;
@@ -299,7 +298,7 @@ bool kvm_make_vcpus_request_mask(struct kvm *kvm, unsigned int req,
 
 	for_each_set_bit(i, vcpu_bitmap, KVM_MAX_VCPUS) {
 		vcpu = kvm_get_vcpu(kvm, i);
-		if (!vcpu || vcpu == except)
+		if (!vcpu)
 			continue;
 		kvm_make_vcpu_request(kvm, vcpu, req, tmp, me);
 	}