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From: Arnd Bergmann <arnd@kernel.org>
To: Herbert Xu <herbert@gondor.apana.org.au>,
	"David S. Miller" <davem@davemloft.net>,
	Vitaly Chikunov <vt@altlinux.org>,
	Stefan Berger <stefanb@linux.ibm.com>
Cc: Arnd Bergmann <arnd@arndb.de>, Ard Biesheuvel <ardb@kernel.org>,
	Eric Biggers <ebiggers@google.com>,
	linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] crypto: ecc: fix CRYPTO_DEFAULT_RNG dependency
Date: Mon, 20 Sep 2021 12:05:35 +0200	[thread overview]
Message-ID: <20210920100551.1568868-1-arnd@kernel.org> (raw)

From: Arnd Bergmann <arnd@arndb.de>

The ecc.c file started out as part of the ECDH algorithm but got
moved out into a standalone module later. It does not build without
CRYPTO_DEFAULT_RNG, so now that other modules are using it as well we
can run into this link error:

aarch64-linux-ld: ecc.c:(.text+0xfc8): undefined reference to `crypto_default_rng'
aarch64-linux-ld: ecc.c:(.text+0xff4): undefined reference to `crypto_put_default_rng'

Move the 'select CRYPTO_DEFAULT_RNG' statement into the correct symbol.

Fixes: 0d7a78643f69 ("crypto: ecrdsa - add EC-RDSA (GOST 34.10) algorithm")
Fixes: 4e6602916bc6 ("crypto: ecdsa - Add support for ECDSA signature verification")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 crypto/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/crypto/Kconfig b/crypto/Kconfig
index 536df4b6b825..285f82647d2b 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -233,12 +233,12 @@ config CRYPTO_DH
 
 config CRYPTO_ECC
 	tristate
+	select CRYPTO_RNG_DEFAULT
 
 config CRYPTO_ECDH
 	tristate "ECDH algorithm"
 	select CRYPTO_ECC
 	select CRYPTO_KPP
-	select CRYPTO_RNG_DEFAULT
 	help
 	  Generic implementation of the ECDH algorithm
 
-- 
2.29.2


             reply	other threads:[~2021-09-20 10:06 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-20 10:05 Arnd Bergmann [this message]
2021-09-20 16:25 ` [PATCH] crypto: ecc: fix CRYPTO_DEFAULT_RNG dependency Stefan Berger
2021-10-01  6:45 ` Herbert Xu

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