diff --git a/cpu/cpu_linux_noinit.go b/cpu/cpu_linux_noinit.go
new file mode 100644
index 00000000..192198e3
--- /dev/null
+++ b/cpu/cpu_linux_noinit.go
@@ -0,0 +1,9 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build linux,!arm,!arm64,!s390x,!ppc64
+
+package cpu
+
+func doinit() {}
diff --git a/cpu/cpu_mips64x.go b/cpu/cpu_mips64x.go
index f55e0c82..6165f121 100644
--- a/cpu/cpu_mips64x.go
+++ b/cpu/cpu_mips64x.go
@@ -7,5 +7,3 @@
 package cpu
 
 const cacheLineSize = 32
-
-func doinit() {}
diff --git a/cpu/cpu_mipsx.go b/cpu/cpu_mipsx.go
index cda87b1a..1269eee8 100644
--- a/cpu/cpu_mipsx.go
+++ b/cpu/cpu_mipsx.go
@@ -7,5 +7,3 @@
 package cpu
 
 const cacheLineSize = 32
-
-func doinit() {}
diff --git a/cpu/cpu_other_arm64.go b/cpu/cpu_other_arm64.go
index dd1e76dc..e1f31dd2 100644
--- a/cpu/cpu_other_arm64.go
+++ b/cpu/cpu_other_arm64.go
@@ -7,5 +7,3 @@
 package cpu
 
 const cacheLineSize = 64
-
-func doinit() {}
diff --git a/cpu/cpu_wasm.go b/cpu/cpu_wasm.go
index bd9bbda0..8681e876 100644
--- a/cpu/cpu_wasm.go
+++ b/cpu/cpu_wasm.go
@@ -11,5 +11,3 @@ package cpu
 // rules are good enough.
 
 const cacheLineSize = 0
-
-func doinit() {}