linux-kernel - [RFC PATCH 101/105] KVM: selftests: Require vCPU output array when creating VM with vCPUs

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Message-Id: <20220311055056.57265-102-seanjc@google.com>
Date:   Fri, 11 Mar 2022 05:50:52 +0000
From:   Sean Christopherson <seanjc@...gle.com>
To:     linux-kernel@...r.kernel.org
Cc:     Sean Christopherson <seanjc@...gle.com>
Subject: [RFC PATCH 101/105] KVM: selftests: Require vCPU output array when
 creating VM with vCPUs

Signed-off-by: Sean Christopherson <seanjc@...gle.com>
---
 tools/testing/selftests/kvm/lib/kvm_util.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/tools/testing/selftests/kvm/lib/kvm_util.c b/tools/testing/selftests/kvm/lib/kvm_util.c
index 861d18ed868d..3a09ed1a02d2 100644
--- a/tools/testing/selftests/kvm/lib/kvm_util.c
+++ b/tools/testing/selftests/kvm/lib/kvm_util.c
@@ -311,10 +311,11 @@ struct kvm_vm *__vm_create_with_vcpus(enum vm_guest_mode mode, uint32_t nr_vcpus
 				      struct kvm_vcpu *vcpus[])
 {
 	uint64_t vcpu_pages, extra_pg_pages, pages;
-	struct kvm_vcpu *vcpu;
 	struct kvm_vm *vm;
 	int i;
 
+	TEST_ASSERT(!nr_vcpus || vcpus, "Must provide vCPU array");
+
 	/* Force slot0 memory size not small than DEFAULT_GUEST_PHY_PAGES */
 	if (slot0_mem_pages < DEFAULT_GUEST_PHY_PAGES)
 		slot0_mem_pages = DEFAULT_GUEST_PHY_PAGES;
@@ -342,11 +343,8 @@ struct kvm_vm *__vm_create_with_vcpus(enum vm_guest_mode mode, uint32_t nr_vcpus
 	vm_create_irqchip(vm);
 #endif
 
-	for (i = 0; i < nr_vcpus; ++i) {
-		vcpu = vm_vcpu_add(vm, i, guest_code);
-		if (vcpus)
-			vcpus[i] = vcpu;
-	}
+	for (i = 0; i < nr_vcpus; ++i)
+		vcpus[i] = vm_vcpu_add(vm, i, guest_code);
 
 	return vm;
 }
-- 
2.35.1.723.g4982287a31-goog