[PATCH 4/5] kconfig: make arch/*/configs/defconfig the default of KBUILD_DEFCONFIG

From: Masahiro Yamada
Date: Mon May 27 2019 - 10:43:34 EST


Until recently, if KBUILD_DEFCONFIG was not set by the arch Makefile,
the default path arch/*/defconfig was used.

The last users of the default are gone by the following commits:

- Commit f3e20ad67b4c ("s390: move arch/s390/defconfig to
arch/s390/configs/defconfig")

- Commit 986a13769c4b ("alpha: move arch/alpha/defconfig to
arch/alpha/configs/defconfig")

Let's set arch/*/configs/defconfig as a new default. This saves
KBUILD_DEFCONFIG for some architectures.

Signed-off-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>
---

arch/alpha/Makefile | 2 --
arch/arm64/Makefile | 2 --
arch/csky/Makefile | 1 -
arch/nds32/Makefile | 2 --
arch/riscv/Makefile | 2 --
arch/s390/Makefile | 2 --
scripts/kconfig/Makefile | 4 ++++
7 files changed, 4 insertions(+), 11 deletions(-)

diff --git a/arch/alpha/Makefile b/arch/alpha/Makefile
index b3314e0dcb6f..12dee59b011c 100644
--- a/arch/alpha/Makefile
+++ b/arch/alpha/Makefile
@@ -8,8 +8,6 @@
# Copyright (C) 1994 by Linus Torvalds
#

-KBUILD_DEFCONFIG := defconfig
-
NM := $(NM) -B

LDFLAGS_vmlinux := -static -N #-relax
diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile
index b025304bde46..970c41a30ed3 100644
--- a/arch/arm64/Makefile
+++ b/arch/arm64/Makefile
@@ -30,8 +30,6 @@ LDFLAGS_vmlinux += --fix-cortex-a53-843419
endif
endif

-KBUILD_DEFCONFIG := defconfig
-
# Check for binutils support for specific extensions
lseinstr := $(call as-instr,.arch_extension lse,-DCONFIG_AS_LSE=1)

diff --git a/arch/csky/Makefile b/arch/csky/Makefile
index f9aab9157c4a..fb1bbbd91954 100644
--- a/arch/csky/Makefile
+++ b/arch/csky/Makefile
@@ -1,7 +1,6 @@
# SPDX-License-Identifier: GPL-2.0-only
OBJCOPYFLAGS :=-O binary
GZFLAGS :=-9
-KBUILD_DEFCONFIG := defconfig

ifdef CONFIG_CPU_HAS_FPU
FPUEXT = f
diff --git a/arch/nds32/Makefile b/arch/nds32/Makefile
index 14dab5ad88ef..ccdca7142020 100644
--- a/arch/nds32/Makefile
+++ b/arch/nds32/Makefile
@@ -2,8 +2,6 @@
LDFLAGS_vmlinux := --no-undefined -X
OBJCOPYFLAGS := -O binary -R .note -R .note.gnu.build-id -R .comment -S

-KBUILD_DEFCONFIG := defconfig
-
ifdef CONFIG_FUNCTION_TRACER
arch-y += -malways-save-lp -mno-relax
endif
diff --git a/arch/riscv/Makefile b/arch/riscv/Makefile
index 03e760267657..7a117be8297c 100644
--- a/arch/riscv/Makefile
+++ b/arch/riscv/Makefile
@@ -16,8 +16,6 @@ endif
KBUILD_AFLAGS_MODULE += -fPIC
KBUILD_CFLAGS_MODULE += -fPIC

-KBUILD_DEFCONFIG = defconfig
-
export BITS
ifeq ($(CONFIG_ARCH_RV64I),y)
BITS := 64
diff --git a/arch/s390/Makefile b/arch/s390/Makefile
index de8521fc9de5..df1d6a150f30 100644
--- a/arch/s390/Makefile
+++ b/arch/s390/Makefile
@@ -10,8 +10,6 @@
# Copyright (C) 1994 by Linus Torvalds
#

-KBUILD_DEFCONFIG := defconfig
-
LD_BFD := elf64-s390
KBUILD_LDFLAGS := -m elf64_s390
KBUILD_AFLAGS_MODULE += -fPIC
diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
index 059642bd6584..ab30fe724c43 100644
--- a/scripts/kconfig/Makefile
+++ b/scripts/kconfig/Makefile
@@ -12,6 +12,10 @@ else
Kconfig := Kconfig
endif

+ifndef KBUILD_DEFCONFIG
+KBUILD_DEFCONFIG := defconfig
+endif
+
ifeq ($(quiet),silent_)
silent := -s
endif
--
2.17.1