linux-kernel - [PATCH] wireguard: Kconfig: select CRYPTO_CHACHA

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Date:   Mon,  4 Jul 2022 21:15:35 +0200
From:   Vladis Dronov <vdronov@...hat.com>
To:     "Jason A. Donenfeld" <Jason@...c4.com>,
        "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
Cc:     Vladis Dronov <vdronov@...hat.com>
Subject: [PATCH] wireguard: Kconfig: select CRYPTO_CHACHA_S390

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