lib/crypto: tests: Introduce CRYPTO_LIB_ENABLE_ALL_FOR_KUNIT

For kunit.py to run all the crypto library tests when passed the
--alltests option, tools/testing/kunit/configs/all_tests.config needs to
enable options that satisfy the test dependencies.

This is the same as what lib/crypto/.kunitconfig already does.
However, the strategy that lib/crypto/.kunitconfig currently uses to
select all the hidden library options isn't going to scale up well when
it needs to be repeated in two places.

Instead let's go ahead and introduce an option
CRYPTO_LIB_ENABLE_ALL_FOR_KUNIT that depends on KUNIT and selects all
the crypto library options that have corresponding KUnit tests.

Update lib/crypto/.kunitconfig to use this option.

Link: https://lore.kernel.org/r/20260314035927.51351-2-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>

diff --git a/lib/crypto/.kunitconfig b/lib/crypto/.kunitconfig
index 8cfd213bded9bcebc3a06cbe045275a2804c6d2e..63a592731d1dc9f0b47cc03406c1687f89cc4b1a 100644 (file)
--- a/lib/crypto/.kunitconfig
+++ b/lib/crypto/.kunitconfig
@@ -1,26 +1,6 @@
 CONFIG_KUNIT=y
 
-# These kconfig options select all the CONFIG_CRYPTO_LIB_* symbols that have a
-# corresponding KUnit test.  Those symbols cannot be directly enabled here,
-# since they are hidden symbols.
-CONFIG_CRYPTO=y
-CONFIG_CRYPTO_ADIANTUM=y
-CONFIG_CRYPTO_AES=y
-CONFIG_CRYPTO_BLAKE2B=y
-CONFIG_CRYPTO_CHACHA20POLY1305=y
-CONFIG_CRYPTO_CMAC=y
-CONFIG_CRYPTO_HCTR2=y
-CONFIG_CRYPTO_MD5=y
-CONFIG_CRYPTO_MLDSA=y
-CONFIG_CRYPTO_SHA1=y
-CONFIG_CRYPTO_SHA256=y
-CONFIG_CRYPTO_SHA512=y
-CONFIG_CRYPTO_SHA3=y
-CONFIG_INET=y
-CONFIG_IPV6=y
-CONFIG_NET=y
-CONFIG_NETDEVICES=y
-CONFIG_WIREGUARD=y
+CONFIG_CRYPTO_LIB_ENABLE_ALL_FOR_KUNIT=y
 
 CONFIG_CRYPTO_LIB_AES_CBC_MACS_KUNIT_TEST=y
 CONFIG_CRYPTO_LIB_BLAKE2B_KUNIT_TEST=y

diff --git a/lib/crypto/tests/Kconfig b/lib/crypto/tests/Kconfig
index 0d71de3da15d77ba84a6fa6f1ff9363b7d4deab1..caab7fdbdfdef2a261be1ac9036affe8e2492978 100644 (file)
--- a/lib/crypto/tests/Kconfig
+++ b/lib/crypto/tests/Kconfig
@@ -116,6 +116,30 @@ config CRYPTO_LIB_SHA3_KUNIT_TEST
          including SHA3-224, SHA3-256, SHA3-384, SHA3-512, SHAKE128 and
          SHAKE256.
 
+config CRYPTO_LIB_ENABLE_ALL_FOR_KUNIT
+       tristate "Enable all crypto library code for KUnit tests"
+       depends on KUNIT
+       select CRYPTO_LIB_AES_CBC_MACS
+       select CRYPTO_LIB_BLAKE2B
+       select CRYPTO_LIB_CURVE25519
+       select CRYPTO_LIB_MD5
+       select CRYPTO_LIB_MLDSA
+       select CRYPTO_LIB_NH
+       select CRYPTO_LIB_POLY1305
+       select CRYPTO_LIB_POLYVAL
+       select CRYPTO_LIB_SHA1
+       select CRYPTO_LIB_SHA256
+       select CRYPTO_LIB_SHA512
+       select CRYPTO_LIB_SHA3
+       help
+         Enable all the crypto library code that has KUnit tests.
+
+         Enable this only if you'd like to test all the crypto library code,
+         even code that wouldn't otherwise need to be built.
+
+         You'll still need to enable the tests themselves, either individually
+         or using KUNIT_ALL_TESTS.
+
 config CRYPTO_LIB_BENCHMARK_VISIBLE
        bool