diff --git a/abi/abi_test.go b/abi/abi_test.go
index b4585b6..6c5c963 100644
--- a/abi/abi_test.go
+++ b/abi/abi_test.go
@@ -314,7 +314,7 @@ func TestSevProduct(t *testing.T) {
 		},
 	}
 	for _, tc := range tcs {
-		cpuid = func(op uint32) (uint32, uint32, uint32, uint32) { return tc.eax, 0, 0, 0 }
+		cpuid = func(uint32) (uint32, uint32, uint32, uint32) { return tc.eax, 0, 0, 0 }
 		got := SevProduct()
 		if diff := cmp.Diff(got, tc.want, protocmp.Transform()); diff != "" {
 			t.Errorf("SevProduct() = %+v, want %+v. Diff: %s", got, tc.want, diff)
diff --git a/tools/check/check_test.go b/tools/check/check_test.go
index 4ee0f77..f204ff8 100644
--- a/tools/check/check_test.go
+++ b/tools/check/check_test.go
@@ -143,14 +143,14 @@ func bytesSetter(name string) setterFn {
 }
 
 func stringSetter(name string) setterFn {
-	return func(p *checkpb.Policy, value string, t *testing.T) bool {
+	return func(p *checkpb.Policy, value string, _ *testing.T) bool {
 		setField(p, name, value)
 		return false
 	}
 }
 
 func boolSetter(name string) setterFn {
-	return func(p *checkpb.Policy, value string, t *testing.T) bool {
+	return func(p *checkpb.Policy, value string, _ *testing.T) bool {
 		switch value {
 		case "true":
 			setField(p, name, true)
@@ -165,7 +165,7 @@ func boolSetter(name string) setterFn {
 }
 
 func uint64setter(name string) setterFn {
-	return func(p *checkpb.Policy, value string, t *testing.T) bool {
+	return func(p *checkpb.Policy, value string, _ *testing.T) bool {
 		u, err := strconv.ParseUint(value, 10, 64)
 		if err != nil {
 			return true
@@ -176,7 +176,7 @@ func uint64setter(name string) setterFn {
 }
 
 func uint32setter(name string) setterFn {
-	return func(p *checkpb.Policy, value string, t *testing.T) bool {
+	return func(p *checkpb.Policy, value string, _ *testing.T) bool {
 		u, err := strconv.ParseUint(value, 10, 32)
 		if err != nil {
 			return true
@@ -187,7 +187,7 @@ func uint32setter(name string) setterFn {
 }
 
 func uint32valueSetter(name string) setterFn {
-	return func(p *checkpb.Policy, value string, t *testing.T) bool {
+	return func(p *checkpb.Policy, value string, _ *testing.T) bool {
 		u, err := strconv.ParseUint(value, 10, 32)
 		if err != nil {
 			return true
@@ -198,7 +198,7 @@ func uint32valueSetter(name string) setterFn {
 }
 
 func uint64valueSetter(name string) setterFn {
-	return func(p *checkpb.Policy, value string, t *testing.T) bool {
+	return func(p *checkpb.Policy, value string, _ *testing.T) bool {
 		u, err := strconv.ParseUint(value, 10, 64)
 		if err != nil {
 			return true
diff --git a/validate/validate_test.go b/validate/validate_test.go
index 26a2c18..a8fde2c 100644
--- a/validate/validate_test.go
+++ b/validate/validate_test.go
@@ -506,7 +506,7 @@ func TestCertTableOptions(t *testing.T) {
 		PlatformInfo: &abi.SnpPlatformInfo{SMTEnabled: true},
 
 		CertTableOptions: map[string]*CertEntryOption{
-			"00000000-feee-feee-0000-000000000000": {Kind: CertEntryRequire, Validate: func(_ *spb.Attestation, blob []byte) error { return nil }},
+			"00000000-feee-feee-0000-000000000000": {Kind: CertEntryRequire, Validate: func(*spb.Attestation, []byte) error { return nil }},
 		},
 	}); err == nil || !strings.Contains(err.Error(), "required") {
 		t.Errorf("SnpAttestation(_, &Options{CertTableOptions: require feee-feee}) = %v, want error to contain %s", err, "required")
@@ -522,7 +522,7 @@ func TestCertTableOptions(t *testing.T) {
 				}
 				return nil
 			}},
-			"00000000-feee-feee-0000-000000000000": {Kind: CertEntryAllowMissing, Validate: func(_ *spb.Attestation, blob []byte) error { return errors.New("don't call me") }},
+			"00000000-feee-feee-0000-000000000000": {Kind: CertEntryAllowMissing, Validate: func(*spb.Attestation, []byte) error { return errors.New("don't call me") }},
 		},
 	}); err != nil {
 		t.Errorf("SnpAttestation(_, &Options{CertTableOptions: require c0de, allow feee-fee}) = %v, want nil", err)
diff --git a/verify/verify_test.go b/verify/verify_test.go
index 89372fe..7f450e8 100644
--- a/verify/verify_test.go
+++ b/verify/verify_test.go
@@ -432,7 +432,7 @@ func TestOpenGetExtendedReportVerifyClose(t *testing.T) {
 	tests := test.TestCases()
 	qp, goodRoots, badRoots, kds := testclient.GetSevQuoteProvider(tests, &test.DeviceOptions{Now: time.Now()}, t)
 	type reportGetter func(sg.QuoteProvider, [64]byte) (*pb.Attestation, error)
-	reportOnly := func(d sg.QuoteProvider, input [64]byte) (*pb.Attestation, error) {
+	reportOnly := func(qp sg.QuoteProvider, input [64]byte) (*pb.Attestation, error) {
 		attestation, err := sg.GetQuoteProto(qp, input)
 		if err != nil {
 			return nil, err