[alsa-devel] [PATCH v4 07/10] ASoC: cros_ec_codec: support WoV

[Tzung-Bi Shih]

On Sat, Oct 19, 2019 at 1:22 AM Mark Brown <broonie at kernel.org> wrote:
>
> On Thu, Oct 17, 2019 at 10:00:12PM +0800, Tzung-Bi Shih wrote:
> > 1. Get EC codec's capabilities.
> > 2. Get and set SHM address if any.
> > 3. Transmit language model to EC codec if needed.
> > 4. Start to read audio data from EC codec if receives host event.
>
> This breaks the build:
>
> ld: sound/soc/codecs/cros_ec_codec.o: in function `calculate_sha256.isra.15':
> cros_ec_codec.c:(.text+0x119d): undefined reference to `crypto_alloc_shash'
> ld: cros_ec_codec.c:(.text+0x11c1): undefined reference to `crypto_shash_digest'
> ld: cros_ec_codec.c:(.text+0x11df): undefined reference to `crypto_destroy_tfm'
> make: *** [Makefile:1094: vmlinux] Error 1

Thanks so much for pointing this out.  Yeah, I forgot to select
CRYPTO_SHA256 in Kconfig.

Looks like there is a blind point in my local build tests
(allyesconfig, allnoconfig, allmodconfig).  The config in the build
fail case could be "CROS_EC_CODEC=y" and "CRYPTO_*=n".

Could you tell me how you get the .config (to enhance my local build
tests next time)?  I tried randconfig several times but it seems not
easy to hit the case (i.e. CROS_EC_CODEC=y but CRYPTO_*=n).