crypto: jitterentropy - Hide esoteric Kconfig options under FIPS and …

…EXPERT

As JITTERENTROPY is selected by default if you enable the CRYPTO
API, any Kconfig options added there will show up for every single
user.  Hide the esoteric options under EXPERT as well as FIPS so
that only distro makers will see them.

Reported-by: Linus Torvalds <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>
Reviewed-by: Stephan Mueller <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>

crypto/Kconfig

@@ -1297,10 +1297,12 @@ config CRYPTO_JITTERENTROPY
 
 	  See https://www.chronox.de/jent.html
 
+if CRYPTO_JITTERENTROPY
+if CRYPTO_FIPS && EXPERT
+
 choice
 	prompt "CPU Jitter RNG Memory Size"
 	default CRYPTO_JITTERENTROPY_MEMSIZE_2
-	depends on CRYPTO_JITTERENTROPY
 	help
 	  The Jitter RNG measures the execution time of memory accesses.
 	  Multiple consecutive memory accesses are performed. If the memory
@@ -1344,7 +1346,6 @@ config CRYPTO_JITTERENTROPY_OSR
 	int "CPU Jitter RNG Oversampling Rate"
 	range 1 15
 	default 1
-	depends on CRYPTO_JITTERENTROPY
 	help
 	  The Jitter RNG allows the specification of an oversampling rate (OSR).
 	  The Jitter RNG operation requires a fixed amount of timing
@@ -1359,7 +1360,6 @@ config CRYPTO_JITTERENTROPY_OSR
 
 config CRYPTO_JITTERENTROPY_TESTINTERFACE
 	bool "CPU Jitter RNG Test Interface"
-	depends on CRYPTO_JITTERENTROPY
 	help
 	  The test interface allows a privileged process to capture
 	  the raw unconditioned high resolution time stamp noise that
@@ -1377,6 +1377,28 @@ config CRYPTO_JITTERENTROPY_TESTINTERFACE
 
 	  If unsure, select N.
 
+endif	# if CRYPTO_FIPS && EXPERT
+
+if !(CRYPTO_FIPS && EXPERT)
+
+config CRYPTO_JITTERENTROPY_MEMORY_BLOCKS
+	int
+	default 64
+
+config CRYPTO_JITTERENTROPY_MEMORY_BLOCKSIZE
+	int
+	default 32
+
+config CRYPTO_JITTERENTROPY_OSR
+	int
+	default 1
+
+config CRYPTO_JITTERENTROPY_TESTINTERFACE
+	bool
+
+endif	# if !(CRYPTO_FIPS && EXPERT)
+endif	# if CRYPTO_JITTERENTROPY
+
 config CRYPTO_KDF800108_CTR
 	tristate
 	select CRYPTO_HMAC