On Sun, Nov 5, 2017 at 6:30 AM, Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx> wrote: > 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@xxxxxxxxxxxxx> Nice, that's much better than the hack I had. Acked-by: Arnd Bergmann <arnd@xxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
