(resend using a working From address) <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> ... > diff --git a/arch/mips/boot/dts/Makefile b/arch/mips/boot/dts/Makefile > index 7891ffa..b2b0d88 100644 > --- a/arch/mips/boot/dts/Makefile > +++ b/arch/mips/boot/dts/Makefile > @@ -1,20 +1,14 @@ > -dts-dirs += brcm > -dts-dirs += cavium-octeon > -dts-dirs += img > -dts-dirs += ingenic > -dts-dirs += lantiq > -dts-dirs += mti > -dts-dirs += netlogic > -dts-dirs += ni > -dts-dirs += pic32 > -dts-dirs += qca > -dts-dirs += ralink > -dts-dirs += xilfpga > +subdir-y += brcm > +subdir-y += cavium-octeon > +subdir-y += img > +subdir-y += ingenic > +subdir-y += lantiq > +subdir-y += mti > +subdir-y += netlogic > +subdir-y += ni > +subdir-y += pic32 > +subdir-y += qca > +subdir-y += ralink > +subdir-y += xilfpga > > -obj-y := $(addsuffix /, $(dts-dirs)) > - > -dtstree := $(srctree)/$(src) > -dtb-$(CONFIG_OF_ALL_DTBS) := $(patsubst $(dtstree)/%.dts,%.dtb, $(foreach d,$(dts-dirs), $(wildcard $(dtstree)/$(d)/*.dts))) > - > -always := $(dtb-y) > -subdir-y := $(dts-dirs) > +obj-$(BUILTIN_DTB) := $(addsuffix /, $(subdir-y)) I wonder if that should be CONFIG_BUILTIN_DTB? This is causing failures in linux-next with MIPS cavium_octeon_defconfig like below, and changing this line to CONFIG_BUILTIN_DTB seems to fix it. arch/mips/cavium-octeon/setup.o: In function `__octeon_is_model_runtime__': /work/mips/linux/main/./arch/mips/include/asm/octeon/octeon-model.h:368: undefined reference to `__dtb_octeon_3xxx_begin' arch/mips/cavium-octeon/setup.o: In function `device_tree_init': /work/mips/linux/main/arch/mips/cavium-octeon/setup.c:1188: undefined reference to `__dtb_octeon_3xxx_begin' /work/mips/linux/main/arch/mips/cavium-octeon/setup.c:1184: undefined reference to `__dtb_octeon_68xx_begin' /work/mips/linux/main/arch/mips/cavium-octeon/setup.c:1184: undefined reference to `__dtb_octeon_68xx_begin' Thanks James -- James Hogan -- 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
