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Subject[PATCH] x86: remove redundant 'default n' from Kconfig-s
'default n' is the default value for any bool or tristate Kconfig
setting so there is no need to write it explicitly.

Also since commit f467c5640c29 ("kconfig: only write '# CONFIG_FOO
is not set' for visible symbols") the Kconfig behavior is the same
regardless of 'default n' being present or not:

One side effect of (and the main motivation for) this change is making
the following two definitions behave exactly the same:

config FOO

config FOO
default n

With this change, neither of these will generate a
'# CONFIG_FOO is not set' line (assuming FOO isn't selected/implied).
That might make it clearer to people that a bare 'default n' is

Signed-off-by: Bartlomiej Zolnierkiewicz <>
arch/x86/Kconfig | 7 -------
arch/x86/Kconfig.debug | 1 -
arch/x86/xen/Kconfig | 1 -
3 files changed, 9 deletions(-)

Index: b/arch/x86/Kconfig
--- a/arch/x86/Kconfig 2018-10-09 15:58:36.747122883 +0200
+++ b/arch/x86/Kconfig 2018-10-16 15:37:16.787643127 +0200
@@ -449,7 +449,6 @@ config RETPOLINE

config INTEL_RDT
bool "Intel Resource Director Technology support"
- default n
depends on X86 && CPU_SUP_INTEL
select KERNFS
@@ -704,7 +703,6 @@ config STA2X11
select SWIOTLB
select MFD_STA2X11
select GPIOLIB
- default n
This adds support for boards based on the STA2X11 IO-Hub,
a.k.a. "ConneXt". The chip is used in place of the standard
@@ -805,7 +803,6 @@ config KVM_GUEST
bool "Enable debug information for KVM Guests in debugfs"
depends on KVM_GUEST && DEBUG_FS
- default n
This option enables collection of various statistics for KVM guest.
Statistics are displayed in debugfs filesystem. Enabling this option
@@ -814,7 +811,6 @@ config KVM_DEBUG_FS
bool "Paravirtual steal time accounting"
depends on PARAVIRT
- default n
Select this option to enable fine granularity task steal time
accounting. Time spent executing other tasks in parallel with
@@ -1171,7 +1167,6 @@ source "arch/x86/events/Kconfig"

config X86_LEGACY_VM86
bool "Legacy VM86 support"
- default n
depends on X86_32
This option allows user programs to put the CPU into V8086
@@ -2231,7 +2226,6 @@ config HOTPLUG_CPU

bool "Set default setting of cpu0_hotpluggable"
- default n
depends on HOTPLUG_CPU
Set whether default state of cpu0_hotpluggable is on or off.
@@ -2792,7 +2786,6 @@ source "drivers/pcmcia/Kconfig"
config RAPIDIO
tristate "RapidIO support"
depends on PCI
- default n
If enabled this option will include drivers and the core
infrastructure code to support RapidIO interconnect devices.
Index: b/arch/x86/Kconfig.debug
--- a/arch/x86/Kconfig.debug 2018-09-26 15:54:31.898819765 +0200
+++ b/arch/x86/Kconfig.debug 2018-10-16 15:37:37.903643659 +0200
@@ -314,7 +314,6 @@ config DEBUG_NMI_SELFTEST

bool "Isolated Memory Region self test"
- default n
depends on INTEL_IMR
This option enables automated sanity testing of the IMR code.
Index: b/arch/x86/xen/Kconfig
--- a/arch/x86/xen/Kconfig 2018-10-09 15:58:37.003122889 +0200
+++ b/arch/x86/xen/Kconfig 2018-10-16 15:37:53.031644040 +0200
@@ -69,7 +69,6 @@ config XEN_SAVE_RESTORE
bool "Enable Xen debug and tuning parameters in debugfs"
depends on XEN && DEBUG_FS
- default n
Enable statistics output and various tuning options in debugfs.
Enabling this option may incur a significant performance overhead.
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