diff --git a/arch/um/Kconfig b/arch/um/Kconfig
index 018f076101f3..563301fe5df8 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 5d92cacd56c6..c71b39a677aa 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 1f7dcb064aee..7a0e04e34bf9 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)
-