Re: [PATCH v8 2/4] powerpc: Refactor kexec functions to move arch independent code to ima

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Hi Lakshmi,

On Fri, 2020-10-30 at 10:44 -0700, Lakshmi Ramasubramanian wrote:
> The functions ima_get_kexec_buffer() and ima_free_kexec_buffer(),
> that handle carrying forward the IMA measurement logs on kexec for
> powerpc do not have architecture specific code, but they are currently
> defined for powerpc only.
> 
> Move ima_get_kexec_buffer() and ima_free_kexec_buffer() to IMA
> subsystem. A later patch in this series will use these functions for
> carrying forward the IMA measurement log for ARM64.
> 
> With the above refactoring arch/powerpc/kexec/ima.c contains only
> functions used when CONFIG_IMA_KEXEC is enabled. Update Makefile
> in arch/powerpc/kexec to include arch/powerpc/kexec/ima.c only
> when CONFIG_IMA_KEXEC is enabled.
> 
> Co-developed-by: Prakhar Srivastava <prsriva@xxxxxxxxxxxxxxxxxxx>
> Signed-off-by: Prakhar Srivastava <prsriva@xxxxxxxxxxxxxxxxxxx>
> Signed-off-by: Lakshmi Ramasubramanian <nramas@xxxxxxxxxxxxxxxxxxx>

Similar comments to 1/4.
-  Last line of first paragraph can be rephrased like " ... on kexec,
do not contain architecture specific code, but are currently limited to
powerpc."
-  This patch should be limited to moving existing functions.  
Truncate the Subject line to "Move arch independent IMA kexec functions
to ima_kexec.c."
- Don't refer to a later patch, but explain the purpose here.  For
example, "Move ... , making them accessible to other archs."
- The definition of "FDT_PROP_IMA_KEXEC_BUFFER" should be made as a
separate, prepartory patch, prior to the existing 1/4.  The resulting
code being moved in this patch (and similarly for 1/4) will be exactly
the same as the code being deleted.

thanks,

Mimi




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