lkml.org 
[lkml]   [2022]   [Jan]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v6] lib/crypto: blake2s: include as built-in
On Sun, Jan 02, 2022 at 09:42:03PM +0100, Jason A. Donenfeld wrote:
> In preparation for using blake2s in the RNG, we change the way that it
> is wired-in to the build system. Instead of using ifdefs to select the
> right symbol, we use weak symbols. And because ARM doesn't need the
> generic implementation, we make the generic one default only if an arch
> library doesn't need it already, and then have arch libraries that do
> need it opt-in.
>
> Acked-by: Ard Biesheuvel <ardb@kernel.org>
> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> Cc: Masahiro Yamada <masahiroy@kernel.org>
> Cc: linux-kbuild@vger.kernel.org
> Cc: Herbert Xu <herbert@gondor.apana.org.au>
> Cc: linux-crypto@vger.kernel.org
> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
> ---
> Herbert - As mentioned with the vPrev, I intend to take this via the
> crng/random.git tree, since it forms a dependency and I'd like to send a
> pull early in 5.17 cycle.

At this point I think we should push this through crypto. The
changes are too invasive with respect to the crypto Kconfig files.

> diff --git a/crypto/Kconfig b/crypto/Kconfig
> index 285f82647d2b..b7a2e50dcbc8 100644
> --- a/crypto/Kconfig
> +++ b/crypto/Kconfig
> @@ -702,7 +702,7 @@ config CRYPTO_BLAKE2S
> See https://blake2.net for further information.
>
> config CRYPTO_BLAKE2S_X86
> - tristate "BLAKE2s digest algorithm (x86 accelerated version)"
> + bool "BLAKE2s digest algorithm (x86 accelerated version)"
> depends on X86 && 64BIT
> select CRYPTO_LIB_BLAKE2S_GENERIC
> select CRYPTO_ARCH_HAVE_LIB_BLAKE2S

This will break when CRYPTO is disabled because the x86 crypto
glue code depends on the crypto subsystem.

Cheers,
--
Email: Herbert Xu <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt

\
 
 \ /
  Last update: 2022-01-03 04:25    [W:0.060 / U:0.256 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site