treewide: surround Kconfig file paths with double quotes

The Kconfig lexer supports special characters such as '.' and '/' in
the parameter context. In my understanding, the reason is just to
support bare file paths in the source statement.

I do not see a good reason to complicate Kconfig for the room of
ambiguity.

The majority of code already surrounds file paths with double quotes,
and it makes sense since file paths are constant string literals.

Make it treewide consistent now.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Ingo Molnar <mingo@kernel.org>
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 91be74d..0a7faf8 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -910,7 +910,7 @@
 
 source "arch/arm/firmware/Kconfig"
 
-source arch/arm/mm/Kconfig
+source "arch/arm/mm/Kconfig"
 
 config IWMMXT
 	bool "Enable iWMMXt support"
diff --git a/arch/arm/kvm/Kconfig b/arch/arm/kvm/Kconfig
index e2bd35b..3f5320f 100644
--- a/arch/arm/kvm/Kconfig
+++ b/arch/arm/kvm/Kconfig
@@ -55,6 +55,6 @@
 	---help---
 	  Provides host support for ARM processors.
 
-source drivers/vhost/Kconfig
+source "drivers/vhost/Kconfig"
 
 endif # VIRTUALIZATION
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 787d785..04e525f 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -782,7 +782,7 @@
 config HOLES_IN_ZONE
 	def_bool y
 
-source kernel/Kconfig.hz
+source "kernel/Kconfig.hz"
 
 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
 	def_bool y
diff --git a/arch/arm64/kvm/Kconfig b/arch/arm64/kvm/Kconfig
index 47b23bf..a3f8562 100644
--- a/arch/arm64/kvm/Kconfig
+++ b/arch/arm64/kvm/Kconfig
@@ -61,6 +61,6 @@
 config KVM_INDIRECT_VECTORS
        def_bool KVM && (HARDEN_BRANCH_PREDICTOR || HARDEN_EL2_VECTORS)
 
-source drivers/vhost/Kconfig
+source "drivers/vhost/Kconfig"
 
 endif # VIRTUALIZATION
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 36773de..0ef105a 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -261,7 +261,7 @@
 endif
 
 if !IA64_HP_SIM
-source kernel/Kconfig.hz
+source "kernel/Kconfig.hz"
 endif
 
 config IA64_BRL_EMU
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index 1bc9f1b..6f18c45 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -123,11 +123,11 @@
 
 menu "Platform setup"
 
-source arch/m68k/Kconfig.cpu
+source "arch/m68k/Kconfig.cpu"
 
-source arch/m68k/Kconfig.machine
+source "arch/m68k/Kconfig.machine"
 
-source arch/m68k/Kconfig.bus
+source "arch/m68k/Kconfig.bus"
 
 endmenu
 
diff --git a/arch/mips/kvm/Kconfig b/arch/mips/kvm/Kconfig
index 76b93a9..c369302 100644
--- a/arch/mips/kvm/Kconfig
+++ b/arch/mips/kvm/Kconfig
@@ -72,6 +72,6 @@
 
 	  If unsure, say N.
 
-source drivers/vhost/Kconfig
+source "drivers/vhost/Kconfig"
 
 endif # VIRTUALIZATION
diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig
index 285f7d0..d765b4a 100644
--- a/arch/openrisc/Kconfig
+++ b/arch/openrisc/Kconfig
@@ -139,7 +139,7 @@
 
 	  If you don't know what to do here, say N.
 
-source kernel/Kconfig.hz
+source "kernel/Kconfig.hz"
 
 config OPENRISC_NO_SPR_SR_DSX
 	bool "use SPR_SR_DSX software emulation" if OR1K_1200
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 8be3126..e1307d6 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -393,7 +393,7 @@
 	bool "High memory support"
 	depends on PPC32
 
-source kernel/Kconfig.hz
+source "kernel/Kconfig.hz"
 
 config HUGETLB_PAGE_SIZE_VARIABLE
 	bool
@@ -816,7 +816,7 @@
 	def_bool y
 	depends on ADB_PMU
 
-source kernel/power/Kconfig
+source "kernel/power/Kconfig"
 
 config SECCOMP
 	bool "Enable seccomp to safely compute untrusted bytecode"
diff --git a/arch/powerpc/kvm/Kconfig b/arch/powerpc/kvm/Kconfig
index 68a0e9d..bfdde04 100644
--- a/arch/powerpc/kvm/Kconfig
+++ b/arch/powerpc/kvm/Kconfig
@@ -204,6 +204,6 @@
 	default y
 	depends on KVM_XICS && PPC_XIVE_NATIVE && KVM_BOOK3S_HV_POSSIBLE
 
-source drivers/vhost/Kconfig
+source "drivers/vhost/Kconfig"
 
 endif # VIRTUALIZATION
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index 55da93f..4f428ab 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -287,6 +287,6 @@
 
 menu "Power management options"
 
-source kernel/power/Kconfig
+source "kernel/power/Kconfig"
 
 endmenu
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 5173366..48de9d3 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -520,7 +520,7 @@
 	  making when dealing with machines that have multi-threading,
 	  multiple cores or multiple books.
 
-source kernel/Kconfig.hz
+source "kernel/Kconfig.hz"
 
 config KEXEC
 	def_bool y
diff --git a/arch/s390/kvm/Kconfig b/arch/s390/kvm/Kconfig
index a3dbd45..767453f 100644
--- a/arch/s390/kvm/Kconfig
+++ b/arch/s390/kvm/Kconfig
@@ -57,6 +57,6 @@
 
 # OK, it's a little counter-intuitive to do this, but it puts it neatly under
 # the virtualization menu.
-source drivers/vhost/Kconfig
+source "drivers/vhost/Kconfig"
 
 endif # VIRTUALIZATION
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index f82a4da..b2581b1 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -597,7 +597,7 @@
 
 menu "Kernel features"
 
-source kernel/Kconfig.hz
+source "kernel/Kconfig.hz"
 
 config KEXEC
 	bool "kexec system call (EXPERIMENTAL)"
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 490b2c9..29b97f1 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -187,7 +187,7 @@
 	default 32 if SPARC32
 	default 4096 if SPARC64
 
-source kernel/Kconfig.hz
+source "kernel/Kconfig.hz"
 
 config RWSEM_GENERIC_SPINLOCK
 	bool
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 9d734f3..fd5ac1d 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1975,7 +1975,7 @@
 
 	  If unsure, say Y. Only embedded should say N here.
 
-source kernel/Kconfig.hz
+source "kernel/Kconfig.hz"
 
 config KEXEC
 	bool "kexec system call"
diff --git a/arch/x86/kvm/Kconfig b/arch/x86/kvm/Kconfig
index 1bbec38..72fa955 100644
--- a/arch/x86/kvm/Kconfig
+++ b/arch/x86/kvm/Kconfig
@@ -98,6 +98,6 @@
 
 # OK, it's a little counter-intuitive to do this, but it puts it neatly under
 # the virtualization menu.
-source drivers/vhost/Kconfig
+source "drivers/vhost/Kconfig"
 
 endif # VIRTUALIZATION
diff --git a/block/Kconfig b/block/Kconfig
index f7045aa..1b91498 100644
--- a/block/Kconfig
+++ b/block/Kconfig
@@ -224,4 +224,4 @@
 config BLK_PM
 	def_bool BLOCK && PM
 
-source block/Kconfig.iosched
+source "block/Kconfig.iosched"
diff --git a/crypto/Kconfig b/crypto/Kconfig
index f7a235d..2c63b52a 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -1826,7 +1826,7 @@
 	bool
 
 source "drivers/crypto/Kconfig"
-source crypto/asymmetric_keys/Kconfig
-source certs/Kconfig
+source "crypto/asymmetric_keys/Kconfig"
+source "certs/Kconfig"
 
 endif	# if CRYPTO
diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig
index caa98a7..4db49de 100644
--- a/drivers/crypto/Kconfig
+++ b/drivers/crypto/Kconfig
@@ -258,7 +258,7 @@
 	  Select this option if you want to enable the random number generator
 	  on the HIFN 795x crypto adapters.
 
-source drivers/crypto/caam/Kconfig
+source "drivers/crypto/caam/Kconfig"
 
 config CRYPTO_DEV_TALITOS
 	tristate "Talitos Freescale Security Engine (SEC)"
diff --git a/drivers/gpu/drm/i915/Kconfig b/drivers/gpu/drm/i915/Kconfig
index 33a458b..148be8e 100644
--- a/drivers/gpu/drm/i915/Kconfig
+++ b/drivers/gpu/drm/i915/Kconfig
@@ -131,5 +131,5 @@
 menu "drm/i915 Debugging"
 depends on DRM_I915
 depends on EXPERT
-source drivers/gpu/drm/i915/Kconfig.debug
+source "drivers/gpu/drm/i915/Kconfig.debug"
 endmenu
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index 81da17a..9ccbbd3 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -1306,7 +1306,7 @@
 	  These devices are hard to detect and rarely found on mainstream
 	  hardware.  If unsure, say N.
 
-source drivers/hwmon/pmbus/Kconfig
+source "drivers/hwmon/pmbus/Kconfig"
 
 config SENSORS_PWM_FAN
 	tristate "PWM fan"
diff --git a/drivers/i2c/Kconfig b/drivers/i2c/Kconfig
index efc3354..c6b7fc7 100644
--- a/drivers/i2c/Kconfig
+++ b/drivers/i2c/Kconfig
@@ -68,7 +68,7 @@
 	  This support is also available as a module.  If so, the module
 	  will be called i2c-mux.
 
-source drivers/i2c/muxes/Kconfig
+source "drivers/i2c/muxes/Kconfig"
 
 config I2C_HELPER_AUTO
 	bool "Autoselect pertinent helper modules"
@@ -94,8 +94,8 @@
 	  This support is also available as a module.  If so, the module
 	  will be called i2c-smbus.
 
-source drivers/i2c/algos/Kconfig
-source drivers/i2c/busses/Kconfig
+source "drivers/i2c/algos/Kconfig"
+source "drivers/i2c/busses/Kconfig"
 
 config I2C_STUB
 	tristate "I2C/SMBus Test Stub"
diff --git a/drivers/pps/Kconfig b/drivers/pps/Kconfig
index c6008f2..965aa08 100644
--- a/drivers/pps/Kconfig
+++ b/drivers/pps/Kconfig
@@ -37,8 +37,8 @@
 
 	  It doesn't work on tickless systems at the moment.
 
-source drivers/pps/clients/Kconfig
+source "drivers/pps/clients/Kconfig"
 
-source drivers/pps/generators/Kconfig
+source "drivers/pps/generators/Kconfig"
 
 endif # PPS
diff --git a/drivers/ras/Kconfig b/drivers/ras/Kconfig
index 4c3c67d..b834ff5 100644
--- a/drivers/ras/Kconfig
+++ b/drivers/ras/Kconfig
@@ -30,6 +30,6 @@
 
 if RAS
 
-source arch/x86/ras/Kconfig
+source "arch/x86/ras/Kconfig"
 
 endif
diff --git a/drivers/thermal/Kconfig b/drivers/thermal/Kconfig
index 5422523..5fbfabb 100644
--- a/drivers/thermal/Kconfig
+++ b/drivers/thermal/Kconfig
@@ -383,7 +383,7 @@
 	  underlying BIOS/Firmware.
 
 menu "ACPI INT340X thermal drivers"
-source drivers/thermal/int340x_thermal/Kconfig
+source "drivers/thermal/int340x_thermal/Kconfig"
 endmenu
 
 config INTEL_BXT_PMIC_THERMAL
diff --git a/drivers/w1/Kconfig b/drivers/w1/Kconfig
index 6743bde..dbb41f4 100644
--- a/drivers/w1/Kconfig
+++ b/drivers/w1/Kconfig
@@ -25,7 +25,7 @@
 	  2. Userspace commands. Includes read/write and search/alarm search commands.
 	  3. Replies to userspace commands.
 
-source drivers/w1/masters/Kconfig
-source drivers/w1/slaves/Kconfig
+source "drivers/w1/masters/Kconfig"
+source "drivers/w1/slaves/Kconfig"
 
 endif # W1
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 1af29b8..08a95da1 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -439,7 +439,7 @@
 
 menu "Memory Debugging"
 
-source mm/Kconfig.debug
+source "mm/Kconfig.debug"
 
 config DEBUG_OBJECTS
 	bool "Debug object operations"
@@ -1609,7 +1609,7 @@
 	  Enable this option if you want to use the LatencyTOP tool
 	  to find out which userspace is blocking on what kernel operations.
 
-source kernel/trace/Kconfig
+source "kernel/trace/Kconfig"
 
 config PROVIDE_OHCI1394_DMA_INIT
 	bool "Remote debugging over FireWire early on boot"
diff --git a/security/Kconfig b/security/Kconfig
index d9aa521..e4fe2f3 100644
--- a/security/Kconfig
+++ b/security/Kconfig
@@ -4,7 +4,7 @@
 
 menu "Security options"
 
-source security/keys/Kconfig
+source "security/keys/Kconfig"
 
 config SECURITY_DMESG_RESTRICT
 	bool "Restrict unprivileged access to the kernel syslog"
@@ -230,14 +230,14 @@
 	  If you wish for all usermode helper programs to be disabled,
 	  specify an empty string here (i.e. "").
 
-source security/selinux/Kconfig
-source security/smack/Kconfig
-source security/tomoyo/Kconfig
-source security/apparmor/Kconfig
-source security/loadpin/Kconfig
-source security/yama/Kconfig
+source "security/selinux/Kconfig"
+source "security/smack/Kconfig"
+source "security/tomoyo/Kconfig"
+source "security/apparmor/Kconfig"
+source "security/loadpin/Kconfig"
+source "security/yama/Kconfig"
 
-source security/integrity/Kconfig
+source "security/integrity/Kconfig"
 
 choice
 	prompt "Default security module"
diff --git a/security/integrity/Kconfig b/security/integrity/Kconfig
index da95658..877af1f 100644
--- a/security/integrity/Kconfig
+++ b/security/integrity/Kconfig
@@ -66,7 +66,7 @@
 	  be enabled by specifying 'integrity_audit=1' on the kernel
 	  command line.
 
-source security/integrity/ima/Kconfig
-source security/integrity/evm/Kconfig
+source "security/integrity/ima/Kconfig"
+source "security/integrity/evm/Kconfig"
 
 endif   # if INTEGRITY