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Subject: Re: [PATCH v9 0/8] Carry forward IMA measurement log on kexec on
 ARM64
From:   Mimi Zohar <zohar@linux.ibm.com>
To:     Lakshmi Ramasubramanian <nramas@linux.microsoft.com>,
        Rob Herring <robh@kernel.org>
Cc:     bauerman@linux.ibm.com, gregkh@linuxfoundation.org,
        james.morse@arm.com, catalin.marinas@arm.com, sashal@kernel.org,
        will@kernel.org, mpe@ellerman.id.au, benh@kernel.crashing.org,
        paulus@samba.org, frowand.list@gmail.com,
        vincenzo.frascino@arm.com, mark.rutland@arm.com,
        dmitry.kasatkin@gmail.com, jmorris@namei.org, serge@hallyn.com,
        pasha.tatashin@soleen.com, allison@lohutok.net,
        kstewart@linuxfoundation.org, takahiro.akashi@linaro.org,
        tglx@linutronix.de, masahiroy@kernel.org, bhsharma@redhat.com,
        mbrugger@suse.com, hsinyi@chromium.org, tao.li@vivo.com,
        christophe.leroy@c-s.fr, linux-integrity@vger.kernel.org,
        linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
        prsriva@linux.microsoft.com, balajib@linux.microsoft.com
Date:   Tue, 01 Dec 2020 14:15:33 -0500
In-Reply-To: <76a749ac-8465-1d82-0ff5-0a46e0a29f18@linux.microsoft.com>
References: <20201113192243.1993-1-nramas@linux.microsoft.com>
         <20201121135719.GA2134870@robh.at.kernel.org>
         <415b4d0b-3d93-40ce-b74e-48fdce7fbf7f@linux.microsoft.com>
         <a73a47da53b795617758cc23991624dfca173eba.camel@linux.ibm.com>
         <76a749ac-8465-1d82-0ff5-0a46e0a29f18@linux.microsoft.com>
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On Tue, 2020-12-01 at 11:10 -0800, Lakshmi Ramasubramanian wrote:
> On 12/1/20 3:34 AM, Mimi Zohar wrote:
> > On Sat, 2020-11-21 at 06:38 -0800, Lakshmi Ramasubramanian wrote:
> >> On 11/21/20 5:57 AM, Rob Herring wrote:
> >>> On Fri, Nov 13, 2020 at 11:22:35AM -0800, Lakshmi Ramasubramanian wrote:
> > 
> >>>>    arch/powerpc/include/asm/kexec.h       |   1 -
> >>>>    arch/powerpc/kexec/Makefile            |   7 +-
> >>>>    arch/powerpc/kexec/file_load.c         |  32 --------
> >>>>    arch/powerpc/kexec/ima.c               | 106 ++-----------------------
> >>>>    drivers/of/Makefile                    |   9 +++
> >>>
> >>>>    drivers/of/ima_kexec.c                 |  91 +++++++++++++++++++++
> >>>>    drivers/of/kexec_fdt.c                 |  55 +++++++++++++
> >>>
> >>> Does this need to be 2 files? Just kexec.c?
> >>
> >> Since the functions defined in "ima_kexec.c" and "kexec_fdt.c" are
> >> enabled on 2 different kernel CONFIGs, keeping them in 2 files enables
> >> us to avoid using "#ifdef" in C files.
> > 
> > Normally that is true, but just as all of the kexec related functions
> > are co-located in ima/ima_kexec.c, co-locating all of the kexec related
> > functions in drivers/of makes sense.
> > 
> 
> Sounds good - i'll make the change.
> Instead of "#ifdef" will use "IS_ENABLED" macro, and define the kexec 
> related functions in drivers/of/ima_kexec.c

Perhaps name the file kexec.c, as Rob suggested.

Mimi