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Date:   Tue, 5 Jul 2022 02:49:19 +0200
From:   "Jason A. Donenfeld" <Jason@...c4.com>
To:     Vladis Dronov <vdronov@...hat.com>
Cc:     "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Harald Freudenberger <freude@...ux.ibm.com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        wireguard@...ts.zx2c4.com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] wireguard: Kconfig: select CRYPTO_CHACHA_S390

Hi Vladis,

On Mon, Jul 04, 2022 at 09:15:35PM +0200, Vladis Dronov wrote:
> Select the new implementation of CHACHA20 for S390 when available,
> it is faster than the generic software implementation.
> 
> Reported-by: kernel test robot <lkp@...el.com>
> Link: https://lore.kernel.org/linux-kernel/202207030630.6SZVkrWf-lkp@intel.com/
> Signed-off-by: Vladis Dronov <vdronov@...hat.com>
> ---
>  drivers/net/Kconfig | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
> index b2a4f998c180..8c1eeb5a8db8 100644
> --- a/drivers/net/Kconfig
> +++ b/drivers/net/Kconfig
> @@ -94,6 +94,7 @@ config WIREGUARD
>  	select CRYPTO_CURVE25519_NEON if ARM && KERNEL_MODE_NEON
>  	select CRYPTO_CHACHA_MIPS if CPU_MIPS32_R2
>  	select CRYPTO_POLY1305_MIPS if MIPS
> +	select CRYPTO_CHACHA_S390 if S390
>  	help
>  	  WireGuard is a secure, fast, and easy to use replacement for IPSec
>  	  that uses modern cryptography and clever networking tricks. It's
> -- 
> 2.36.1

Thanks for the patch. Queued up as:
https://git.zx2c4.com/wireguard-linux/commit/?id=1b4ab028730cd00c144eaa51160865504b780961

I'll include this in my series to net.git soon.

Regards,
Jason

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