linux-kernel - Re: [PATCH] crypto: ccree: limit build to plausible archs

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Date:   Mon, 23 Apr 2018 19:53:43 +0200
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Gilad Ben-Yossef <gilad@...yossef.com>
Cc:     Herbert Xu <herbert@...dor.apana.org.au>,
        "David S. Miller" <davem@...emloft.net>,
        Ofir Drang <ofir.drang@....com>,
        Linux Crypto Mailing List <linux-crypto@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] crypto: ccree: limit build to plausible archs

Hi Gilad,

On Mon, Apr 23, 2018 at 3:22 PM, Gilad Ben-Yossef <gilad@...yossef.com> wrote:
> On Mon, Apr 23, 2018 at 3:13 PM, Geert Uytterhoeven
> <geert@...ux-m68k.org> wrote:
>> On Mon, Apr 23, 2018 at 1:48 PM, Gilad Ben-Yossef <gilad@...yossef.com> wrote:
>>> Limit option to compile ccree to plausible architectures.
>>
>> Thanks for your patch!
>>
>>> Suggested-by: Geert Uytterhoeven <geert@...ux-m68k.org>
>>> Signed-off-by: Gilad Ben-Yossef <gilad@...yossef.com>
>>> ---
>>>  drivers/crypto/Kconfig | 1 +
>>>  1 file changed, 1 insertion(+)
>>>
>>> diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig
>>> index d1ea1a0..7302785 100644
>>> --- a/drivers/crypto/Kconfig
>>> +++ b/drivers/crypto/Kconfig
>>> @@ -726,6 +726,7 @@ config CRYPTO_DEV_ARTPEC6
>>>  config CRYPTO_DEV_CCREE
>>>         tristate "Support for ARM TrustZone CryptoCell family of security processors"
>>>         depends on CRYPTO && CRYPTO_HW && OF && HAS_DMA
>>> +       depends on (XTENSA || X86 || UNICORE32 || SUPERH || RISCV || PPC32 || OPENRISC || NIOS2 || NDS32 || MIPS || MICROBLAZE || HEXAGON || H8300 || ARM || ARM64 || ARC || COMPILE_TEST)
>>
>> That list looks a bit excessive to me...
>
> I'm sorry, but as an Arm employee I'm not in liberty to identify which
> customer licensed or might license CryptoCell for which platform, now
> or in the future.
>
> I'm sure you understand.

IC, a clever marketing scheme to make everyone think that everybody else
is already a licensee ;-)

What about using "depends on <list> || COMPILE_TEST", with <list> the
platforms for which the DTS (incl. "arm,cryptocell-*") will be submitted
for v4.18? The list can easily be extended when needed.

Thanks!

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds