Re: [PATCH] powerpc/boot: add DTB to 'targets'

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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



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