Most of the Kconfig commands (except defconfig and all*config) read the
.config file as a base set of CONFIG options.
When it does not exist, the files in DEFCONFIG_LIST are searched in this
order and loaded if found.
I do not see much sense in the last two entries in DEFCONFIG_LIST.
[1] ARCH_DEFCONFIG
The entry for DEFCONFIG_LIST is guarded by 'depends on !UML'. So, the
ARCH_DEFCONFIG definition in arch/x86/um/Kconfig is meaningless.
arch/{sh,sparc,x86}/Kconfig define ARCH_DEFCONFIG depending on 32 or 64
bit variant symbols. This is a little bit strange; ARCH_DEFCONFIG should
be a fixed string because the base config file is loaded before the symbol
evaluation stage.
Using KBUILD_DEFCONFIG is saner because it is fixed before Kconfig is
invoked. Fortunately, arch/{sh,sparc,x86}/Makefile define it in the
same way, and it works as expected. Hence, replace ARCH_DEFCONFIG with
"arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG)".
[2] arch/$(ARCH)/defconfig
This file path is no longer valid. The defconfig files are always located
in the arch configs/ directories.
$ find arch -name defconfig | sort
arch/alpha/configs/defconfig
arch/arm64/configs/defconfig
arch/csky/configs/defconfig
arch/nds32/configs/defconfig
arch/riscv/configs/defconfig
arch/s390/configs/defconfig
arch/unicore32/configs/defconfig
The path arch/*/configs/defconfig is already covered by
"arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG)". So, this file path is
not necessary.
Signed-off-by: Masahiro Yamada <masahiroy@xxxxxxxxxx>
---
arch/sh/Kconfig | 5 -----
arch/sparc/Kconfig | 5 -----
arch/x86/Kconfig | 5 -----
arch/x86/um/Kconfig | 5 -----
init/Kconfig | 3 +--
5 files changed, 1 insertion(+), 22 deletions(-)
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 9ece111b0254..b4f0e37b83eb 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -87,11 +87,6 @@ config SUPERH64
select HAVE_EXIT_THREAD
select KALLSYMS
-config ARCH_DEFCONFIG
- string
- default "arch/sh/configs/shx3_defconfig" if SUPERH32
- default "arch/sh/configs/cayman_defconfig" if SUPERH64
-
config GENERIC_BUG
def_bool y
depends on BUG && SUPERH32
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index c1dd6dd642f4..0de15380d1fc 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -95,11 +95,6 @@ config SPARC64
select PCI_DOMAINS if PCI
select ARCH_HAS_GIGANTIC_PAGE
-config ARCH_DEFCONFIG
- string
- default "arch/sparc/configs/sparc32_defconfig" if SPARC32
- default "arch/sparc/configs/sparc64_defconfig" if SPARC64
-
config ARCH_PROC_KCORE_TEXT
def_bool y
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index beea77046f9b..98935f4387f9 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -240,11 +240,6 @@ config OUTPUT_FORMAT
default "elf32-i386" if X86_32
default "elf64-x86-64" if X86_64
-config ARCH_DEFCONFIG
- string
- default "arch/x86/configs/i386_defconfig" if X86_32
- default "arch/x86/configs/x86_64_defconfig" if X86_64
-
config LOCKDEP_SUPPORT
def_bool y
diff --git a/arch/x86/um/Kconfig b/arch/x86/um/Kconfig
index a8985e1f7432..95d26a69088b 100644
--- a/arch/x86/um/Kconfig
+++ b/arch/x86/um/Kconfig
@@ -27,11 +27,6 @@ config X86_64
def_bool 64BIT
select MODULES_USE_ELF_RELA
-config ARCH_DEFCONFIG
- string
- default "arch/um/configs/i386_defconfig" if X86_32
- default "arch/um/configs/x86_64_defconfig" if X86_64
-
config 3_LEVEL_PGTABLES
bool "Three-level pagetables" if !64BIT
default 64BIT
diff --git a/init/Kconfig b/init/Kconfig
index 452bc1835cd4..6ccdb168dee5 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -6,8 +6,7 @@ config DEFCONFIG_LIST
default "/lib/modules/$(shell,uname -r)/.config"
default "/etc/kernel-config"
default "/boot/config-$(shell,uname -r)"
- default ARCH_DEFCONFIG
- default "arch/$(ARCH)/defconfig"
+ default "arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG)"
config CC_IS_GCC
def_bool $(success,$(CC) --version | head -n 1 | grep -q gcc)
--
2.17.1
