[PATCH 14/38] crypto: drbg - Flatten the DRBG menu

[Eric Biggers <ebiggers@kernel.org>]

Now that the menuconfig CRYPTO_DRBG_MENU has no options in it other than
the hidden symbol CRYPTO_DRBG, remove it and move CRYPTO_DRBG to its
parent menu.  Give CRYPTO_DRBG an appropriate prompt and help text.

Signed-off-by: Eric Biggers <ebiggers@kernel.org>
---
 crypto/Kconfig | 17 +++++------------
 1 file changed, 5 insertions(+), 12 deletions(-)

diff --git a/crypto/Kconfig b/crypto/Kconfig
index 14519474a67b..1abb3d356458 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -1111,28 +1111,21 @@ config CRYPTO_ZSTD
 
 endmenu
 
 menu "Random number generation"
 
-menuconfig CRYPTO_DRBG_MENU
-	tristate "NIST SP800-90A DRBG (Deterministic Random Bit Generator)"
-	help
-	  DRBG (Deterministic Random Bit Generator) (NIST SP800-90A)
-
-	  In the following submenu, one or more of the DRBG types must be selected.
-
-if CRYPTO_DRBG_MENU
-
 config CRYPTO_DRBG
-	tristate
-	default CRYPTO_DRBG_MENU
+	tristate "NIST SP800-90A DRBG (Deterministic Random Bit Generator)"
 	select CRYPTO_HMAC
 	select CRYPTO_JITTERENTROPY
 	select CRYPTO_RNG
 	select CRYPTO_SHA512
+	help
+	  DRBG (Deterministic Random Bit Generator) (NIST SP800-90A)
 
-endif	# if CRYPTO_DRBG_MENU
+	  Enable this only if you need it for a FIPS 140 certification.
+	  It's otherwise redundant with the kernel's regular RNG.
 
 config CRYPTO_JITTERENTROPY
 	tristate "CPU Jitter Non-Deterministic RNG (Random Number Generator)"
 	select CRYPTO_LIB_SHA3
 	select CRYPTO_RNG
-- 
2.53.0