linux-kernel - [PATCH 1/8] crypto: Kconfig

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Date:   Mon, 15 Aug 2022 14:06:01 -0500
From:   Robert Elliott <elliott@....com>
To:     herbert@...dor.apana.org.au, davem@...emloft.net,
        linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     toshi.kani@....com, Robert Elliott <elliott@....com>
Subject: [PATCH 1/8] crypto: Kconfig - add submenus

Convert each comment section into a submenu:
Cryptographic API
    Crypto core or helper
    Public-key cryptography
    AEAD (Authenticated Encryption with Associated Data) ciphers
    Block modes
    Hash modes
    Digests
    Ciphers
    Compression
    Random Number Generation
    User-space interface

That helps find entries (e.g., searching for a name like SHA512 doesn't
just report the location is Main menu -> Cryptography API, leaving you
to wade through 153 entries; it points you to the Digests page).

Signed-off-by: Robert Elliott <elliott@....com>
---
 crypto/Kconfig | 42 ++++++++++++++++++++++++++++++++----------
 1 file changed, 32 insertions(+), 10 deletions(-)

diff --git a/crypto/Kconfig b/crypto/Kconfig
index 7b81685b5655..c2db970bc998 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -21,7 +21,7 @@ menuconfig CRYPTO
 
 if CRYPTO
 
-comment "Crypto core or helper"
+menu "Crypto core or helper"
 
 config CRYPTO_FIPS
 	bool "FIPS 200 compliance"
@@ -214,7 +214,9 @@ menuconfig CRYPTO
 config CRYPTO_ENGINE
 	tristate
 
-comment "Public-key cryptography"
+endmenu
+
+menu "Public-key cryptography"
 
 config CRYPTO_RSA
 	tristate "RSA algorithm"
@@ -301,7 +303,9 @@ menuconfig CRYPTO
 	select CRYPTO_LIB_CURVE25519_GENERIC
 	select CRYPTO_ARCH_HAVE_LIB_CURVE25519
 
-comment "Authenticated Encryption with Associated Data"
+endmenu
+
+menu "AEAD (Authenticated Encryption with Associated Data) ciphers"
 
 config CRYPTO_CCM
 	tristate "CCM support"
@@ -378,7 +382,11 @@ menuconfig CRYPTO
 	  a sequence number xored with a salt.  This is the default
 	  algorithm for CBC.
 
-comment "Block modes"
+	  This is required for IPsec ESP (XFRM_ESP).
+
+endmenu
+
+menu "Block modes"
 
 config CRYPTO_CBC
 	tristate "CBC support"
@@ -552,7 +560,9 @@ menuconfig CRYPTO
 	  combined with ESSIV the only feasible mode for h/w accelerated
 	  block encryption)
 
-comment "Hash modes"
+endmenu
+
+menu "Hash modes"
 
 config CRYPTO_CMAC
 	tristate "CMAC support"
@@ -594,7 +604,9 @@ menuconfig CRYPTO
 	  See also:
 	  <https://fastcrypto.org/vmac>
 
-comment "Digest"
+endmenu
+
+menu "Digests"
 
 config CRYPTO_CRC32C
 	tristate "CRC32c CRC algorithm"
@@ -627,7 +639,6 @@ menuconfig CRYPTO
 	  (vpmsum) instructions, introduced in POWER8. Enable on POWER8
 	  and newer processors for improved performance.
 
-
 config CRYPTO_CRC32C_SPARC64
 	tristate "CRC32c CRC algorithm (SPARC64)"
 	depends on SPARC64
@@ -1142,7 +1153,9 @@ menuconfig CRYPTO
 
 	  It is available as of z196.
 
-comment "Ciphers"
+endmenu
+
+menu "Ciphers"
 
 config CRYPTO_AES
 	tristate "AES cipher algorithms"
@@ -1877,7 +1890,9 @@ menuconfig CRYPTO
 	  See also:
 	  <https://www.schneier.com/twofish.html>
 
-comment "Compression"
+endmenu
+
+menu "Compression"
 
 config CRYPTO_DEFLATE
 	tristate "Deflate compression algorithm"
@@ -1936,7 +1951,9 @@ menuconfig CRYPTO
 	help
 	  This is the zstd algorithm.
 
-comment "Random Number Generation"
+endmenu
+
+menu "Random Number Generation"
 
 config CRYPTO_ANSI_CPRNG
 	tristate "Pseudo Random Number Generation for Cryptographic modules"
@@ -1993,6 +2010,8 @@ menuconfig CRYPTO_DRBG_MENU
 	  random numbers. This Jitterentropy RNG registers with
 	  the kernel crypto API and can be used by any caller.
 
+endmenu
+
 config CRYPTO_KDF800108_CTR
 	tristate
 	select CRYPTO_HMAC
@@ -2001,6 +2020,7 @@ menuconfig CRYPTO_DRBG_MENU
 config CRYPTO_USER_API
 	tristate
 
+menu "User-space interface"
 config CRYPTO_USER_API_HASH
 	tristate "User-space interface for hash algorithms"
 	depends on NET
@@ -2069,6 +2089,8 @@ menuconfig CRYPTO_DRBG_MENU
 	  - encrypt/decrypt/sign/verify numbers for asymmetric operations
 	  - generate/seed numbers for rng operations
 
+endmenu
+
 config CRYPTO_HASH_INFO
 	bool
 
-- 
2.37.1