crypto: Add missing MODULE_DESCRIPTION() macros

Fix the 'make W=1' warnings:
WARNING: modpost: missing MODULE_DESCRIPTION() in crypto/cast_common.o
WARNING: modpost: missing MODULE_DESCRIPTION() in crypto/af_alg.o
WARNING: modpost: missing MODULE_DESCRIPTION() in crypto/algif_hash.o
WARNING: modpost: missing MODULE_DESCRIPTION() in crypto/algif_skcipher.o
WARNING: modpost: missing MODULE_DESCRIPTION() in crypto/ecc.o
WARNING: modpost: missing MODULE_DESCRIPTION() in crypto/curve25519-generic.o
WARNING: modpost: missing MODULE_DESCRIPTION() in crypto/xor.o
WARNING: modpost: missing MODULE_DESCRIPTION() in crypto/crypto_simd.o
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

crypto/af_alg.c

@@ -1317,5 +1317,6 @@ static void __exit af_alg_exit(void)
 
 module_init(af_alg_init);
 module_exit(af_alg_exit);
+MODULE_DESCRIPTION("Crypto userspace interface");
 MODULE_LICENSE("GPL");
 MODULE_ALIAS_NETPROTO(AF_ALG);

crypto/algif_hash.c

@@ -471,4 +471,5 @@ static void __exit algif_hash_exit(void)
 
 module_init(algif_hash_init);
 module_exit(algif_hash_exit);
+MODULE_DESCRIPTION("Userspace interface for hash algorithms");
 MODULE_LICENSE("GPL");

crypto/algif_skcipher.c

@@ -437,4 +437,5 @@ static void __exit algif_skcipher_exit(void)
 
 module_init(algif_skcipher_init);
 module_exit(algif_skcipher_exit);
+MODULE_DESCRIPTION("Userspace interface for skcipher algorithms");
 MODULE_LICENSE("GPL");

crypto/cast_common.c

@@ -282,4 +282,5 @@ __visible const u32 cast_s4[256] = {
 };
 EXPORT_SYMBOL_GPL(cast_s4);
 
+MODULE_DESCRIPTION("Common lookup tables for CAST-128 (cast5) and CAST-256 (cast6)");
 MODULE_LICENSE("GPL");

crypto/curve25519-generic.c

@@ -87,4 +87,5 @@ module_exit(curve25519_exit);
 
 MODULE_ALIAS_CRYPTO("curve25519");
 MODULE_ALIAS_CRYPTO("curve25519-generic");
+MODULE_DESCRIPTION("Curve25519 elliptic curve (RFC7748)");
 MODULE_LICENSE("GPL");

crypto/ecc.c

@@ -1715,4 +1715,5 @@ int crypto_ecdh_shared_secret(unsigned int curve_id, unsigned int ndigits,
 }
 EXPORT_SYMBOL(crypto_ecdh_shared_secret);
 
+MODULE_DESCRIPTION("core elliptic curve module");
 MODULE_LICENSE("Dual BSD/GPL");

crypto/simd.c

@@ -523,4 +523,5 @@ void simd_unregister_aeads(struct aead_alg *algs, int count,
 }
 EXPORT_SYMBOL_GPL(simd_unregister_aeads);
 
+MODULE_DESCRIPTION("Shared crypto SIMD helpers");
 MODULE_LICENSE("GPL");

crypto/xor.c

@@ -165,6 +165,7 @@ calibrate_xor_blocks(void)
 
 static __exit void xor_exit(void) { }
 
+MODULE_DESCRIPTION("RAID-5 checksumming functions");
 MODULE_LICENSE("GPL");
 
 #ifndef MODULE