[PATCH 11/11] crypto: rng - Don't pull in DRBG when CRYPTO_FIPS=n

[Eric Biggers <ebiggers@kernel.org>]

crypto_stdrng_get_bytes() is now always available:

    - When CRYPTO_FIPS=n it is an inline function that always calls into
      the always-built-in drivers/char/random.c.

    - When CRYPTO_FIPS=y it is an inline function that calls into either
      random.c or crypto/rng.c, depending on the value of fips_enabled.
      The former is again always built-in.  The latter is built-in as
      well in this case, due to CRYPTO_FIPS=y.

Thus, the CRYPTO_RNG_DEFAULT symbol is no longer needed.  Remove it.

This makes it so that CRYPTO_DRBG_MENU (and hence also CRYPTO_DRBG,
CRYPTO_JITTERENTROPY, and CRYPTO_LIB_SHA3) no longer gets unnecessarily
pulled into CRYPTO_FIPS=n kernels.  I.e. CRYPTO_FIPS=n kernels are no
longer bloated with code that is relevant only to FIPS certifications.

Signed-off-by: Eric Biggers <ebiggers@kernel.org>
---
 crypto/Kconfig | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/crypto/Kconfig b/crypto/Kconfig
index 80492538e1f7..13686f033413 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -107,14 +107,10 @@ config CRYPTO_RNG
 
 config CRYPTO_RNG2
 	tristate
 	select CRYPTO_ALGAPI2
 
-config CRYPTO_RNG_DEFAULT
-	tristate
-	select CRYPTO_DRBG_MENU
-
 config CRYPTO_AKCIPHER2
 	tristate
 	select CRYPTO_ALGAPI2
 
 config CRYPTO_AKCIPHER
@@ -294,11 +290,10 @@ config CRYPTO_DH
 	  DH (Diffie-Hellman) key exchange algorithm
 
 config CRYPTO_DH_RFC7919_GROUPS
 	bool "RFC 7919 FFDHE groups"
 	depends on CRYPTO_DH
-	select CRYPTO_RNG_DEFAULT
 	help
 	  FFDHE (Finite-Field-based Diffie-Hellman Ephemeral) groups
 	  defined in RFC7919.
 
 	  Support these finite-field groups in DH key exchanges:
@@ -306,11 +301,10 @@ config CRYPTO_DH_RFC7919_GROUPS
 
 	  If unsure, say N.
 
 config CRYPTO_ECC
 	tristate
-	select CRYPTO_RNG_DEFAULT
 
 config CRYPTO_ECDH
 	tristate "ECDH (Elliptic Curve Diffie-Hellman)"
 	select CRYPTO_ECC
 	select CRYPTO_KPP
@@ -802,11 +796,10 @@ config CRYPTO_GCM
 
 config CRYPTO_GENIV
 	tristate
 	select CRYPTO_AEAD
 	select CRYPTO_MANAGER
-	select CRYPTO_RNG_DEFAULT
 
 config CRYPTO_SEQIV
 	tristate "Sequence Number IV Generator"
 	select CRYPTO_GENIV
 	help
-- 
2.53.0