netdev - [PATCH net 6/6] wireguard: Kconfig: select CRYPTO_CHACHA

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Date:   Thu,  7 Jul 2022 02:31:57 +0200
From:   "Jason A. Donenfeld" <Jason@...c4.com>
To:     netdev@...r.kernel.org, kuba@...nel.org, pabeni@...hat.com,
        davem@...emloft.net
Cc:     Vladis Dronov <vdronov@...hat.com>,
        kernel test robot <lkp@...el.com>,
        "Jason A . Donenfeld" <Jason@...c4.com>
Subject: [PATCH net 6/6] wireguard: Kconfig: select CRYPTO_CHACHA_S390

From: Vladis Dronov <vdronov@...hat.com>

Select the new implementation of CHACHA20 for S390 when available.
It is faster than the generic software implementation, but also prevents
some linker errors in certain situations.

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>
Signed-off-by: Jason A. Donenfeld <Jason@...c4.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
-- 
2.35.1