Re: [PATCH v13 2/6] powerpc: Move arch independent ima kexec functions to drivers/of/kexec.c

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Hi Lakshmi,

On Sat, 2020-12-19 at 09:57 -0800, Lakshmi Ramasubramanian wrote:
> 
> diff --git a/arch/powerpc/kexec/Makefile b/arch/powerpc/kexec/Makefile
> index 4aff6846c772..b6c52608cb49 100644
> --- a/arch/powerpc/kexec/Makefile
> +++ b/arch/powerpc/kexec/Makefile
> @@ -9,13 +9,6 @@ obj-$(CONFIG_PPC32)		+= relocate_32.o
>  
>  obj-$(CONFIG_KEXEC_FILE)	+= file_load.o ranges.o file_load_$(BITS).o elf_$(BITS).o
>  
> -ifdef CONFIG_HAVE_IMA_KEXEC
> -ifdef CONFIG_IMA
> -obj-y				+= ima.o
> -endif
> -endif

Notice how "kexec/ima.o" is only included if the architecture supports
it and IMA is configured.  In addition only if CONFIG_IMA_KEXEC is
configured, is the IMA measurement list carried across kexec.  After
moving the rest of ima.c to drivers/of/kexec.c, this changes.   Notice
how drivers/of/Kconfig includes kexec.o:

obj-$(CONFIG_KEXEC_FILE) += kexec.o

It is not dependent on CONFIG_HAVE_IMA_KEXEC.  Shouldn't all of the
functions defined in ima.c being moved to kexec.o be defined within a
CONFIG_HAVE_IMA_KEXEC ifdef?

thanks,

Mimi




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