diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 5e28e2be3a41d6234ed18de61cff9d6767050b01..463d8838f1db3ff8a6954fc048092773236c7e27 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -233,12 +233,10 @@ config ARCH_WANT_GENERAL_HUGETLB
 	def_bool y
 
 config ZONE_DMA32
-	bool
-	default X86_64
+	def_bool y if X86_64
 
 config AUDIT_ARCH
-	bool
-	default X86_64
+	def_bool y if X86_64
 
 config ARCH_SUPPORTS_OPTIMIZED_INLINING
 	def_bool y
@@ -1115,10 +1113,10 @@ config MICROCODE_OLD_INTERFACE
 	depends on MICROCODE
 
 config MICROCODE_INTEL_EARLY
-	def_bool n
+	bool
 
 config MICROCODE_AMD_EARLY
-	def_bool n
+	bool
 
 config MICROCODE_EARLY
 	bool "Early load microcode"