[PATCH 5.10 454/663] wireguard: kconfig: use arm chacha even with no neon

From: Greg Kroah-Hartman
Date: Mon Mar 01 2021 - 21:32:49 EST


From: Jason A. Donenfeld <Jason@xxxxxxxxx>

[ Upstream commit bce2473927af8de12ad131a743f55d69d358c0b9 ]

The condition here was incorrect: a non-neon fallback implementation is
available on arm32 when NEON is not supported.

Reported-by: Ilya Lipnitskiy <ilya.lipnitskiy@xxxxxxxxx>
Fixes: e7096c131e51 ("net: WireGuard secure network tunnel")
Signed-off-by: Jason A. Donenfeld <Jason@xxxxxxxxx>
Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/net/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index c3dbe64e628ea..13e0a8caf3b6f 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -87,7 +87,7 @@ config WIREGUARD
select CRYPTO_CURVE25519_X86 if X86 && 64BIT
select ARM_CRYPTO if ARM
select ARM64_CRYPTO if ARM64
- select CRYPTO_CHACHA20_NEON if (ARM || ARM64) && KERNEL_MODE_NEON
+ select CRYPTO_CHACHA20_NEON if ARM || (ARM64 && KERNEL_MODE_NEON)
select CRYPTO_POLY1305_NEON if ARM64 && KERNEL_MODE_NEON
select CRYPTO_POLY1305_ARM if ARM
select CRYPTO_CURVE25519_NEON if ARM && KERNEL_MODE_NEON
--
2.27.0