crypto: serpent - rename module from serpent to serpent_generic

Rename module from serpent.ko to serpent_generic.ko and add module alias. This
is to allow assembler implementation to autoload on 'modprobe serpent'. Also
add driver_name and priority for serpent cipher.

CC: Dag Arne Osvik <[e-mail]>
Signed-off-by: Jussi Kivilinna <[e-mail]>
Signed-off-by: Herbert Xu <[e-mail]>

crypto/Makefile

···
 obj-$(CONFIG_CRYPTO_BLOWFISH_COMMON) += blowfish_common.o
 obj-$(CONFIG_CRYPTO_TWOFISH) += twofish_generic.o
 obj-$(CONFIG_CRYPTO_TWOFISH_COMMON) += twofish_common.o
-obj-$(CONFIG_CRYPTO_SERPENT) += serpent.o
+
+serpent_generic-y := serpent.o
+obj-$(CONFIG_CRYPTO_SERPENT) += serpent_generic.o
 obj-$(CONFIG_CRYPTO_AES) += aes_generic.o
 obj-$(CONFIG_CRYPTO_CAMELLIA) += camellia.o
 obj-$(CONFIG_CRYPTO_CAST5) += cast5.o

crypto/serpent.c

···
 
 static struct crypto_alg serpent_alg = {
 	.cra_name		=	"serpent",
+	.cra_driver_name	=	"serpent-generic",
+	.cra_priority		=	100,
 	.cra_flags		=	CRYPTO_ALG_TYPE_CIPHER,
 	.cra_blocksize		=	SERPENT_BLOCK_SIZE,
 	.cra_ctxsize		=	sizeof(struct serpent_ctx),
···
 MODULE_DESCRIPTION("Serpent and tnepres (kerneli compatible serpent reversed) Cipher Algorithm");
 MODULE_AUTHOR("Dag Arne Osvik <[e-mail]>");
 MODULE_ALIAS("tnepres");
+MODULE_ALIAS("serpent");