diff --git a/arch/um/Kconfig b/arch/um/Kconfig
index 018f076101f303ddbbf7f0e4a03e66d1204097fb..563301fe5df8bbfb4bfd5680e5489d23b91e0ba4 100644
--- a/arch/um/Kconfig
+++ b/arch/um/Kconfig
@@ -35,12 +35,6 @@ config IRQ_RELEASE_METHOD
 	bool
 	default y
 
-menu "Host processor type and features"
-
-source "arch/i386/Kconfig.cpu"
-
-endmenu
-
 menu "UML-specific options"
 
 config MODE_TT
diff --git a/arch/um/Kconfig.i386 b/arch/um/Kconfig.i386
index 5d92cacd56c6a71cddf0c88026d7788fedbd3e39..c71b39a677aa49b41bab93ffaf7374800948abb0 100644
--- a/arch/um/Kconfig.i386
+++ b/arch/um/Kconfig.i386
@@ -1,3 +1,9 @@
+menu "Host processor type and features"
+
+source "arch/i386/Kconfig.cpu"
+
+endmenu
+
 config UML_X86
 	bool
 	default y
@@ -42,7 +48,3 @@ config ARCH_HAS_SC_SIGNALS
 config ARCH_REUSE_HOST_VSYSCALL_AREA
 	bool
 	default y
-
-config X86_CMPXCHG
-	bool
-	default y
diff --git a/arch/um/Makefile-i386 b/arch/um/Makefile-i386
index 1f7dcb064aee65602eac0d5fbb18cc77aad6754e..7a0e04e34bf96f2cb4a89a6be34cfbe8f1e6cf90 100644
--- a/arch/um/Makefile-i386
+++ b/arch/um/Makefile-i386
@@ -35,4 +35,3 @@ cflags-y += $(call cc-option,-mpreferred-stack-boundary=2)
 
 CFLAGS += $(cflags-y)
 USER_CFLAGS += $(cflags-y)
-