Merge tag 'kconfig-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kconfig updates from Masahiro Yamada:

 - support -y option for merge_config.sh to avoid downgrading =y to =m

 - remove S_OTHER symbol type, and touch include/config/*.h files correctly

 - fix file name and line number in lexer warnings

 - fix memory leak when EOF is encountered in quotation

 - resolve all shift/reduce conflicts of the parser

 - warn no new line at end of file

 - make 'source' statement more strict to take only string literal

 - rewrite the lexer and remove the keyword lookup table

 - convert to SPDX License Identifier

 - compile C files independently instead of including them from zconf.y

 - fix various warnings of gconfig

 - misc cleanups

* tag 'kconfig-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (39 commits)
  kconfig: surround dbg_sym_flags with #ifdef DEBUG to fix gconf warning
  kconfig: split images.c out of qconf.cc/gconf.c to fix gconf warnings
  kconfig: add static qualifiers to fix gconf warnings
  kconfig: split the lexer out of zconf.y
  kconfig: split some C files out of zconf.y
  kconfig: convert to SPDX License Identifier
  kconfig: remove keyword lookup table entirely
  kconfig: update current_pos in the second lexer
  kconfig: switch to ASSIGN_VAL state in the second lexer
  kconfig: stop associating kconf_id with yylval
  kconfig: refactor end token rules
  kconfig: stop supporting '.' and '/' in unquoted words
  treewide: surround Kconfig file paths with double quotes
  microblaze: surround string default in Kconfig with double quotes
  kconfig: use T_WORD instead of T_VARIABLE for variables
  kconfig: use specific tokens instead of T_ASSIGN for assignments
  kconfig: refactor scanning and parsing "option" properties
  kconfig: use distinct tokens for type and default properties
  kconfig: remove redundant token defines
  kconfig: rename depends_list to comment_option_list
  ...

arch/arm/Kconfig

@@ -910,7 +910,7 @@ config PLAT_VERSATILE
 
 source "arch/arm/firmware/Kconfig"
 
-source arch/arm/mm/Kconfig
+source "arch/arm/mm/Kconfig"
 
 config IWMMXT
 	bool "Enable iWMMXt support"

arch/arm/kvm/Kconfig

@@ -55,6 +55,6 @@ config KVM_ARM_HOST
 	---help---
 	  Provides host support for ARM processors.
 
-source drivers/vhost/Kconfig
+source "drivers/vhost/Kconfig"
 
 endif # VIRTUALIZATION

arch/arm64/Kconfig

@@ -857,7 +857,7 @@ config NEED_PER_CPU_EMBED_FIRST_CHUNK
 config HOLES_IN_ZONE
 	def_bool y
 
-source kernel/Kconfig.hz
+source "kernel/Kconfig.hz"
 
 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
 	def_bool y

arch/arm64/kvm/Kconfig

@@ -61,6 +61,6 @@ config KVM_ARM_PMU
 config KVM_INDIRECT_VECTORS
        def_bool KVM && (HARDEN_BRANCH_PREDICTOR || HARDEN_EL2_VECTORS)
 
-source drivers/vhost/Kconfig
+source "drivers/vhost/Kconfig"
 
 endif # VIRTUALIZATION

arch/ia64/Kconfig

@@ -261,7 +261,7 @@ config HZ
 endif
 
 if !IA64_HP_SIM
-source kernel/Kconfig.hz
+source "kernel/Kconfig.hz"
 endif
 
 config IA64_BRL_EMU

arch/m68k/Kconfig

@@ -122,11 +122,11 @@ config BOOTINFO_PROC
 
 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
 

arch/microblaze/Kconfig.platform

@@ -65,6 +65,6 @@ config XILINX_MICROBLAZE0_USE_FPU
 
 config XILINX_MICROBLAZE0_HW_VER
 	string "Core version number"
-	default 7.10.d
+	default "7.10.d"
 
 endmenu

arch/mips/kvm/Kconfig

@@ -73,6 +73,6 @@ config KVM_MIPS_DEBUG_COP0_COUNTERS
 
 	  If unsure, say N.
 
-source drivers/vhost/Kconfig
+source "drivers/vhost/Kconfig"
 
 endif # VIRTUALIZATION

arch/openrisc/Kconfig

@@ -138,7 +138,7 @@ config SMP
 
 	  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

arch/powerpc/Kconfig

@@ -393,7 +393,7 @@ config HIGHMEM
 	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 @@ config ARCH_WANTS_FREEZER_CONTROL
 	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"

arch/powerpc/kvm/Kconfig

@@ -204,6 +204,6 @@ config KVM_XIVE
 	default y
 	depends on KVM_XICS && PPC_XIVE_NATIVE && KVM_BOOK3S_HV_POSSIBLE
 
-source drivers/vhost/Kconfig
+source "drivers/vhost/Kconfig"
 
 endif # VIRTUALIZATION

arch/riscv/Kconfig

@@ -296,6 +296,6 @@ endmenu
 
 menu "Power management options"
 
-source kernel/power/Kconfig
+source "kernel/power/Kconfig"
 
 endmenu

arch/s390/Kconfig

@@ -518,7 +518,7 @@ config SCHED_TOPOLOGY
 	  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

arch/s390/kvm/Kconfig

@@ -57,6 +57,6 @@ config KVM_S390_UCONTROL
 
 # 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

arch/sh/Kconfig

@@ -596,7 +596,7 @@ endmenu
 
 menu "Kernel features"
 
-source kernel/Kconfig.hz
+source "kernel/Kconfig.hz"
 
 config KEXEC
 	bool "kexec system call (EXPERIMENTAL)"

arch/sparc/Kconfig

@@ -185,7 +185,7 @@ config NR_CPUS
 	default 32 if SPARC32
 	default 4096 if SPARC64
 
-source kernel/Kconfig.hz
+source "kernel/Kconfig.hz"
 
 config RWSEM_GENERIC_SPINLOCK
 	bool

arch/x86/Kconfig

@@ -1977,7 +1977,7 @@ config SECCOMP
 
 	  If unsure, say Y. Only embedded should say N here.
 
-source kernel/Kconfig.hz
+source "kernel/Kconfig.hz"
 
 config KEXEC
 	bool "kexec system call"

arch/x86/kvm/Kconfig

@@ -98,6 +98,6 @@ config KVM_MMU_AUDIT
 
 # 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

block/Kconfig

@@ -218,4 +218,4 @@ config BLK_MQ_RDMA
 config BLK_PM
 	def_bool BLOCK && PM
 
-source block/Kconfig.iosched
+source "block/Kconfig.iosched"

crypto/Kconfig

@@ -1889,7 +1889,7 @@ config CRYPTO_HASH_INFO
 	bool
 
 source "drivers/crypto/Kconfig"
-source crypto/asymmetric_keys/Kconfig
-source certs/Kconfig
+source "crypto/asymmetric_keys/Kconfig"
+source "certs/Kconfig"
 
 endif	# if CRYPTO