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SubjectRe: [PATCH/RFC] crypto: Add platform dependencies for CRYPTO_DEV_CCREE
Hi Arnd,

On Tue, Apr 17, 2018 at 9:53 PM, Arnd Bergmann <> wrote:
> On Tue, Apr 17, 2018 at 8:14 PM, Geert Uytterhoeven
> <> wrote:
>> The ARM TrustZone CryptoCell is found on ARM SoCs only. Hence make it
>> depend on ARM or ARM64, unless compile-testing.
>> Drop the dependency on HAS_DMA, as DMA is always available on ARM and
>> ARM64 platforms, and doing so will increase compile coverage.
>> Signed-off-by: Geert Uytterhoeven <>
>> ---
>> Is ARM || ARM64 OK?
>> Or should this be limited to either ARM or ARM64? Or something else?
> ARM || ARM64 seems fine, but don't you need '|| (HAS_DMA && COMPILE_TEST)'?
> I assume the HAS_DMA dependency was added to prevent compile
> testing to run into a build error.

Probably it was. But in v4.17-rc1, dummies are present in the NO_DMA case,
so everything compile-tests fine.



Geert Uytterhoeven -- There's lots of Linux beyond ia32 --

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

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