linux-kernel - Re: [PATCH 2/5] Glue code for optmized Chacha20 implementation for ppc64le.

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Message-ID: <ZEdnEjhdP4eoNL/o@gondor.apana.org.au>
Date:   Tue, 25 Apr 2023 13:37:22 +0800
From:   Herbert Xu <herbert@...dor.apana.org.au>
To:     Danny Tsen <dtsen@...ux.ibm.com>
Cc:     linux-crypto@...r.kernel.org, leitao@...ian.org,
        nayna@...ux.ibm.com, appro@...ptogams.org,
        linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        mpe@...erman.id.au, ltcgcw@...ux.vnet.ibm.com, dtsen@...ibm.com
Subject: Re: [PATCH 2/5] Glue code for optmized Chacha20 implementation for
 ppc64le.

On Mon, Apr 24, 2023 at 02:47:23PM -0400, Danny Tsen wrote:
>
> +static int __init chacha_p10_init(void)
> +{
> +	static_branch_enable(&have_p10);
> +
> +	return IS_REACHABLE(CONFIG_CRYPTO_SKCIPHER) ?
> +		crypto_register_skciphers(algs, ARRAY_SIZE(algs)) : 0;

What is this for? The usual way is to select CRYPTO_SKCIPHER
rather than have a mysterious failure at run-time.

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