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| author | Masahiro Yamada <yamada.masahiro@socionext.com> | 2017-11-05 08:30:53 +0300 |
|---|---|---|
| committer | Rob Herring <robh@kernel.org> | 2017-11-10 02:03:07 +0300 |
| commit | 7e7962dd1a5307bca1793a3f9a98ad5514306c7a (patch) | |
| tree | f864a54ad98215bb7408767d9d2e32690e925980 /arch/arc/boot | |
| parent | 3cad14d56adbf7d621fc5a35db42f3acc0a2d6e8 (diff) | |
| download | linux-7e7962dd1a5307bca1793a3f9a98ad5514306c7a.tar.xz | |
kbuild: handle dtb-y and CONFIG_OF_ALL_DTBS natively in Makefile.lib
If CONFIG_OF_ALL_DTBS is enabled, "make ARCH=arm64 dtbs" compiles each
DTB twice; one from arch/arm64/boot/dts/*/Makefile and the other from
the dtb-$(CONFIG_OF_ALL_DTBS) line in arch/arm64/boot/dts/Makefile.
It could be a race problem when building DTBS in parallel.
Another minor issue is CONFIG_OF_ALL_DTBS covers only *.dts in vendor
sub-directories, so this broke when Broadcom added one more hierarchy
in arch/arm64/boot/dts/broadcom/<soc>/.
One idea to fix the issues in a clean way is to move DTB handling
to Kbuild core scripts. Makefile.dtbinst already recognizes dtb-y
natively, so it should not hurt to do so.
Add $(dtb-y) to extra-y, and $(dtb-) as well if CONFIG_OF_ALL_DTBS is
enabled. All clutter things in Makefiles go away.
As a bonus clean-up, I also removed dts-dirs. Just use subdir-y
directly to traverse sub-directories.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
[robh: corrected BUILTIN_DTB to CONFIG_BUILTIN_DTB]
Signed-off-by: Rob Herring <robh@kernel.org>
Diffstat (limited to 'arch/arc/boot')
| -rw-r--r-- | arch/arc/boot/dts/Makefile | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/arch/arc/boot/dts/Makefile b/arch/arc/boot/dts/Makefile index 1257db1dc1be..9ece28b0a83f 100644 --- a/arch/arc/boot/dts/Makefile +++ b/arch/arc/boot/dts/Makefile @@ -10,7 +10,6 @@ dtb-y := $(builtindtb-y).dtb .SECONDARY: $(obj)/$(builtindtb-y).dtb.S -dtstree := $(srctree)/$(src) -dtb-$(CONFIG_OF_ALL_DTBS) := $(patsubst $(dtstree)/%.dts,%.dtb, $(wildcard $(dtstree)/*.dts)) - -always := $(dtb-y) +# for CONFIG_OF_ALL_DTBS test +dtstree := $(srctree)/$(src) +dtb- := $(patsubst $(dtstree)/%.dts,%.dtb, $(wildcard $(dtstree)/*.dts)) |