linux-kernel - [PATCH] ipsec: select CRYPTO_HASH for xfrm

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Message-Id: <20190618071514.2222319-1-arnd@arndb.de>
Date:   Tue, 18 Jun 2019 09:14:51 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     Steffen Klassert <steffen.klassert@...unet.com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        "David S. Miller" <davem@...emloft.net>
Cc:     Arnd Bergmann <arnd@...db.de>, Florian Westphal <fw@...len.de>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] ipsec: select CRYPTO_HASH for xfrm_algo

kernelci.org reports failed builds on arc because of what looks
like an old missed 'select' statement:

net/xfrm/xfrm_algo.o: In function `xfrm_probe_algs':
xfrm_algo.c:(.text+0x1e8): undefined reference to `crypto_has_ahash'

I don't see this in randconfig builds on other architectures, but
it's fairly clear we want to select the hash code for it, like we
do for all its other users.

Fixes: 17bc19702221 ("ipsec: Use skcipher and ahash when probing algorithms")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 net/xfrm/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/xfrm/Kconfig b/net/xfrm/Kconfig
index c967fc3c38c8..a5c967efe5f4 100644
--- a/net/xfrm/Kconfig
+++ b/net/xfrm/Kconfig
@@ -15,6 +15,7 @@ config XFRM_ALGO
 	tristate
 	select XFRM
 	select CRYPTO
+	select CRYPTO_HASH
 
 if INET
 config XFRM_USER
-- 
2.20.0