From 381cecc5d7b777ada7cdf12f5b0bf4caf43bf7aa Mon Sep 17 00:00:00 2001
From: Vitaly Kuznetsov <vkuznets@redhat.com>
Date: Fri, 3 Sep 2021 09:51:38 +0200
Subject: [PATCH] KVM: Drop 'except' parameter from
 kvm_make_vcpus_request_mask()
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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    | 2 +-
 arch/x86/kvm/x86.c       | 2 +-
 include/linux/kvm_host.h | 1 -
 virt/kvm/kvm_main.c      | 3 +--
 4 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c
index 192062f65c978..b4b432a164aef 100644
--- a/arch/x86/kvm/hyperv.c
+++ b/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:
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index aabd3a2ec1bc7..7212ba654ba23 100644
--- a/arch/x86/kvm/x86.c
+++ b/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);
 }
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 0f18df7fe8749..89e1a0069833a 100644
--- a/include/linux/kvm_host.h
+++ b/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,
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 61101e7932f76..bcadbc0a70f22 100644
--- a/virt/kvm/kvm_main.c
+++ b/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);
 	}
-- 
2.30.2