Documentation/kbuild/makefiles.rst suggests to use "archclean" for
cleaning arch/$(SRCARCH)/boot/.
Since commit d92cc4d51643 ("kbuild: require all architectures to have
arch/$(SRCARCH)/Kbuild"), we can use the "subdir- += boot" trick for
all architectures. This can take advantage of the parallel option (-j)
for "make clean".
I also cleaned up the comments. The "archdep" target does not exist.
Signed-off-by: Masahiro Yamada
---
Documentation/kbuild/makefiles.rst | 17 ++---
arch/alpha/Kbuild | 3 +++
arch/alpha/Makefile| 3 ---
arch/arc/Kbuild| 3 +++
arch/arc/Makefile | 3 ---
arch/arm/Kbuild| 3 +++
arch/arm/Makefile | 4
arch/arm64/Kbuild | 3 +++
arch/arm64/Makefile| 7 ---
arch/arm64/kernel/Makefile | 3 +++
arch/csky/Kbuild | 3 +++
arch/csky/Makefile | 3 ---
arch/h8300/Kbuild | 3 +++
arch/h8300/Makefile| 3 ---
arch/ia64/Makefile | 2 --
arch/m68k/Makefile | 4 +---
arch/microblaze/Kbuild | 3 +++
arch/microblaze/Makefile | 3 ---
arch/mips/Kbuild | 3 +++
arch/mips/Makefile | 8 +---
arch/mips/boot/Makefile| 3 +++
arch/nds32/Kbuild | 3 +++
arch/nds32/Makefile| 3 ---
arch/nios2/Kbuild | 3 +++
arch/nios2/Makefile| 6 +-
arch/openrisc/Kbuild | 3 +++
arch/openrisc/Makefile | 7 +--
arch/parisc/Kbuild | 3 +++
arch/parisc/Makefile | 7 +--
arch/powerpc/Kbuild| 3 +++
arch/powerpc/Makefile | 7 +--
arch/riscv/Kbuild | 3 +++
arch/riscv/Makefile| 7 +--
arch/s390/Kbuild | 3 +++
arch/s390/Makefile | 8 +---
arch/sh/Kbuild | 3 +++
arch/sh/Makefile | 3 ---
arch/sparc/Kbuild | 3 +++
arch/sparc/Makefile| 3 ---
arch/x86/Kbuild| 3 +++
arch/x86/Makefile | 2 --
arch/xtensa/Makefile | 4 +---
42 files changed, 71 insertions(+), 103 deletions(-)
diff --git a/Documentation/kbuild/makefiles.rst
b/Documentation/kbuild/makefiles.rst
index db3af0b45baf..b008b90b92c9 100644
--- a/Documentation/kbuild/makefiles.rst
+++ b/Documentation/kbuild/makefiles.rst
@@ -1050,22 +1050,9 @@ is not sufficient this sometimes needs to be explicit.
The above assignment instructs kbuild to descend down in the
directory compressed/ when "make clean" is executed.
-To support the clean infrastructure in the Makefiles that build the
-final bootimage there is an optional target named archclean:
-
- Example::
-
- #arch/x86/Makefile
- archclean:
- $(Q)$(MAKE) $(clean)=arch/x86/boot
-
-When "make clean" is executed, make will descend down in arch/x86/boot,
-and clean as usual. The Makefile located in arch/x86/boot/ may use
-the subdir- trick to descend further down.
-
Note 1: arch/$(SRCARCH)/Makefile cannot use "subdir-", because that file is
-included in the top level makefile, and the kbuild infrastructure
-is not operational at that point.
+included in the top level makefile. Instead, arch/$(SRCARCH)/Kbuild can use
+"subdir-".
Note 2: All directories listed in core-y, libs-y, drivers-y and net-y will
be visited during "make clean".
diff --git a/arch/alpha/Kbuild b/arch/alpha/Kbuild
index c2302017403a..345d79df24bb 100644
--- a/arch/alpha/Kbuild
+++ b/arch/alpha/Kbuild
@@ -1,3 +1,6 @@
# SPDX-License-Identifier: GPL-2.0-only
obj-y += kernel/ mm/
obj-$(CONFIG_MATHEMU) += math-emu/
+
+# for cleaning
+subdir- += boot
diff --git a/arch/alpha/Makefile b/arch/alpha/Makefile
index 52529ee42dac..881cb913e23a 100644
--- a/arch/alpha/Makefile
+++ b/arch/alpha/Makefile
@@ -55,9 +55,6 @@ $(boot)/vmlinux.gz: vmlinux
bootimage bootpfile bootpzfile: vmlinux
$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
-archclean:
- $(Q)$(MAKE) $(clean)=$(boot)
-
archheaders:
$(Q)$(MAKE) $(build)=arch/alpha/kernel/syscalls all
diff --git a/arch/arc/Kbuild b/arch/arc/Kbuild
index 699d8cae9b1f..b94102fff68b 100644
--- a/arch/arc/Kbuild
+++ b/arch/arc/Kbuild
@@ -1,3 +1,6 @@
# SPDX-License-Identifier: GPL-2.0
obj-y += kernel/
obj-y += mm/
+
+# for cleaning
+subdir- += boot
diff --git a/arch/arc/Makefile b/arch/arc/Makefile
index 08995f6c6441..efc54f3e35e0 100644
--- a/arch/arc/Makefile
+++ b/arch/arc/Makefile
@@ -112,6 +112,3 @@ uImage: $(uimage-default-y)
@$(kecho) ' Image $(boot)/uImage is ready'
CLEAN_FILES += $(boot)/uImage
-
-archclean:
- $(Q)$(MAKE) $(clean)=$(boot)
diff --git a/arch/arm/Kbuild b/ar
