Masahiro Yamada <masahiroy@xxxxxxxxxx> writes: > PowerPC always re-builds DTB even if nothing has been changed. > > As for other architectures, arch/*/boot/dts/Makefile builds DTB by > using the dtb-y syntax. > > In contrast, arch/powerpc/boot/dts/(fsl/)Makefile does nothing unless > CONFIG_OF_ALL_DTBS is defined. Instead, arch/powerpc/boot/Makefile > builds DTB on demand. You need to add DTB to 'targets' explicitly > so .*.cmd files are included. > > Signed-off-by: Masahiro Yamada <masahiroy@xxxxxxxxxx> > --- > > I want to apply this to kbuild tree because this is needed > to fix the build error caused by another kbuild patch: > > https://lkml.org/lkml/2020/7/7/134 OK. Acked-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx> cheers > diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile > index 63d7456b9518..8792323707fd 100644 > --- a/arch/powerpc/boot/Makefile > +++ b/arch/powerpc/boot/Makefile > @@ -366,6 +366,8 @@ initrd-y := $(patsubst zImage%, zImage.initrd%, \ > $(patsubst treeImage%, treeImage.initrd%, $(image-y))))) > initrd-y := $(filter-out $(image-y), $(initrd-y)) > targets += $(image-y) $(initrd-y) > +targets += $(foreach x, dtbImage uImage cuImage simpleImage treeImage, \ > + $(patsubst $(x).%, dts/%.dtb, $(filter $(x).%, $(image-y)))) > > $(addprefix $(obj)/, $(initrd-y)): $(obj)/ramdisk.image.gz > > -- > 2.25.1
