linux-kernel - [PATCH 5.15 19/66] lib/crypto: add prompts back to crypto libraries

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Message-Id: <20220603173821.218500114@linuxfoundation.org>
Date:   Fri,  3 Jun 2022 19:42:59 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Herbert Xu <herbert@...dor.apana.org.au>,
        linux-crypto@...r.kernel.org,
        "Justin M. Forbes" <jforbes@...oraproject.org>,
        "Jason A. Donenfeld" <Jason@...c4.com>
Subject: [PATCH 5.15 19/66] lib/crypto: add prompts back to crypto libraries

From: "Justin M. Forbes" <jforbes@...oraproject.org>

commit e56e18985596617ae426ed5997fb2e737cffb58b upstream.

Commit 6048fdcc5f269 ("lib/crypto: blake2s: include as built-in") took
away a number of prompt texts from other crypto libraries. This makes
values flip from built-in to module when oldconfig runs, and causes
problems when these crypto libs need to be built in for thingslike
BIG_KEYS.

Fixes: 6048fdcc5f269 ("lib/crypto: blake2s: include as built-in")
Cc: Herbert Xu <herbert@...dor.apana.org.au>
Cc: linux-crypto@...r.kernel.org
Signed-off-by: Justin M. Forbes <jforbes@...oraproject.org>
[Jason: - moved menu into submenu of lib/ instead of root menu
        - fixed chacha sub-dependencies for CONFIG_CRYPTO]
Signed-off-by: Jason A. Donenfeld <Jason@...c4.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 crypto/Kconfig     |    2 --
 lib/Kconfig        |    2 ++
 lib/crypto/Kconfig |   17 ++++++++++++-----
 3 files changed, 14 insertions(+), 7 deletions(-)

--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -1924,5 +1924,3 @@ source "crypto/asymmetric_keys/Kconfig"
 source "certs/Kconfig"
 
 endif	# if CRYPTO
-
-source "lib/crypto/Kconfig"
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -121,6 +121,8 @@ config INDIRECT_IOMEM_FALLBACK
 	  mmio accesses when the IO memory address is not a registered
 	  emulated region.
 
+source "lib/crypto/Kconfig"
+
 config CRC_CCITT
 	tristate "CRC-CCITT functions"
 	help
--- a/lib/crypto/Kconfig
+++ b/lib/crypto/Kconfig
@@ -1,5 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 
+menu "Crypto library routines"
+
 config CRYPTO_LIB_AES
 	tristate
 
@@ -31,7 +33,7 @@ config CRYPTO_ARCH_HAVE_LIB_CHACHA
 
 config CRYPTO_LIB_CHACHA_GENERIC
 	tristate
-	select CRYPTO_ALGAPI
+	select XOR_BLOCKS
 	help
 	  This symbol can be depended upon by arch implementations of the
 	  ChaCha library interface that require the generic code as a
@@ -40,7 +42,8 @@ config CRYPTO_LIB_CHACHA_GENERIC
 	  of CRYPTO_LIB_CHACHA.
 
 config CRYPTO_LIB_CHACHA
-	tristate
+	tristate "ChaCha library interface"
+	depends on CRYPTO
 	depends on CRYPTO_ARCH_HAVE_LIB_CHACHA || !CRYPTO_ARCH_HAVE_LIB_CHACHA
 	select CRYPTO_LIB_CHACHA_GENERIC if CRYPTO_ARCH_HAVE_LIB_CHACHA=n
 	help
@@ -65,7 +68,7 @@ config CRYPTO_LIB_CURVE25519_GENERIC
 	  of CRYPTO_LIB_CURVE25519.
 
 config CRYPTO_LIB_CURVE25519
-	tristate
+	tristate "Curve25519 scalar multiplication library"
 	depends on CRYPTO_ARCH_HAVE_LIB_CURVE25519 || !CRYPTO_ARCH_HAVE_LIB_CURVE25519
 	select CRYPTO_LIB_CURVE25519_GENERIC if CRYPTO_ARCH_HAVE_LIB_CURVE25519=n
 	help
@@ -100,7 +103,7 @@ config CRYPTO_LIB_POLY1305_GENERIC
 	  of CRYPTO_LIB_POLY1305.
 
 config CRYPTO_LIB_POLY1305
-	tristate
+	tristate "Poly1305 library interface"
 	depends on CRYPTO_ARCH_HAVE_LIB_POLY1305 || !CRYPTO_ARCH_HAVE_LIB_POLY1305
 	select CRYPTO_LIB_POLY1305_GENERIC if CRYPTO_ARCH_HAVE_LIB_POLY1305=n
 	help
@@ -109,14 +112,18 @@ config CRYPTO_LIB_POLY1305
 	  is available and enabled.
 
 config CRYPTO_LIB_CHACHA20POLY1305
-	tristate
+	tristate "ChaCha20-Poly1305 AEAD support (8-byte nonce library version)"
 	depends on CRYPTO_ARCH_HAVE_LIB_CHACHA || !CRYPTO_ARCH_HAVE_LIB_CHACHA
 	depends on CRYPTO_ARCH_HAVE_LIB_POLY1305 || !CRYPTO_ARCH_HAVE_LIB_POLY1305
+	depends on CRYPTO
 	select CRYPTO_LIB_CHACHA
 	select CRYPTO_LIB_POLY1305
+	select CRYPTO_ALGAPI
 
 config CRYPTO_LIB_SHA256
 	tristate
 
 config CRYPTO_LIB_SM4
 	tristate
+
+endmenu