crypto: proc - identify internal ciphers

With ciphers that now cannot be accessed via the kernel crypto API,
callers shall be able to identify the ciphers that are not callable. The
/proc/crypto file is added a boolean field identifying that such
internal ciphers.
Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

crypto/proc.c

@@ -89,6 +89,9 @@ static int c_show(struct seq_file *m, void *p)
 	seq_printf(m, "selftest     : %s\n",
 		   (alg->cra_flags & CRYPTO_ALG_TESTED) ?
 		   "passed" : "unknown");
+	seq_printf(m, "internal     : %s\n",
+		   (alg->cra_flags & CRYPTO_ALG_INTERNAL) ?
+		   "yes" : "no");
 
 	if (alg->cra_flags & CRYPTO_ALG_LARVAL) {
 		seq_printf(m, "type         : larval\n");