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[PATCH 4.4 34/75] crypto: public_key: select CRYPTO_AKCIPHER

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  [PATCH 4.4 34/75] crypto: public_key: select CRYPTO_AKCIPHER Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-06-23 01:20 +0200

#1429302 — [PATCH 4.4 34/75] crypto: public_key: select CRYPTO_AKCIPHER

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Arnd Bergmann <arnd@arndb.de>

commit bad6a185b4d6f81d0ed2b6e4c16307969f160b95 upstream.

In some rare randconfig builds, we can end up with
ASYMMETRIC_PUBLIC_KEY_SUBTYPE enabled but CRYPTO_AKCIPHER disabled,
which fails to link because of the reference to crypto_alloc_akcipher:

crypto/built-in.o: In function `public_key_verify_signature':
:(.text+0x110e4): undefined reference to `crypto_alloc_akcipher'

This adds a Kconfig 'select' statement to ensure the dependency
is always there.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 crypto/asymmetric_keys/Kconfig |    1 +
 1 file changed, 1 insertion(+)

--- a/crypto/asymmetric_keys/Kconfig
+++ b/crypto/asymmetric_keys/Kconfig
@@ -14,6 +14,7 @@ config ASYMMETRIC_PUBLIC_KEY_SUBTYPE
 	select MPILIB
 	select PUBLIC_KEY_ALGO_RSA
 	select CRYPTO_HASH_INFO
+	select CRYPTO_AKCIPHER
 	help
 	  This option provides support for asymmetric public key type handling.
 	  If signature generation and/or verification are to be used,

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