Bluetooth: make MBEDTLS_AES_ROM_TABLES implied not selected

valeriosetti · kartben · commit aaf463ca7bea · 2025-01-15T22:57:20.000+01:00
MBEDTLS_AES_ROM_TABLES let Mbed TLS use precomputed AES tables instead
of generating them at runtime and placing in RAM. It clearly helps
reducing the RAM footprint, but at the same time it increases the ROM
one. In order to let the final user decide which kind of optimization
they prefer, we change the "select" statement with "imply".

Signed-off-by: Valerio Setti &lt;vsetti@baylibre.com&gt;
diff --git a/subsys/bluetooth/crypto/Kconfig b/subsys/bluetooth/crypto/Kconfig
@@ -7,6 +7,6 @@ config BT_CRYPTO
 	select MBEDTLS_PSA_CRYPTO_C if !BUILD_WITH_TFM
 	select PSA_WANT_KEY_TYPE_AES
 	select PSA_WANT_ALG_CMAC
-	select MBEDTLS_AES_ROM_TABLES if MBEDTLS_PSA_CRYPTO_C
+	imply MBEDTLS_AES_ROM_TABLES if MBEDTLS_PSA_CRYPTO_C
 	help
 	  This option enables the Bluetooth Cryptographic Toolbox.
diff --git a/subsys/bluetooth/host/Kconfig.gatt b/subsys/bluetooth/host/Kconfig.gatt
@@ -118,7 +118,7 @@ config BT_GATT_CACHING
 	depends on PSA_CRYPTO_CLIENT
 	select PSA_WANT_KEY_TYPE_AES
 	select PSA_WANT_ALG_CMAC
-	select MBEDTLS_AES_ROM_TABLES if MBEDTLS_PSA_CRYPTO_C
+	imply MBEDTLS_AES_ROM_TABLES if MBEDTLS_PSA_CRYPTO_C
 	help
 	  This option enables support for GATT Caching. When enabled the stack
 	  will register Client Supported Features and Database Hash
diff --git a/subsys/bluetooth/mesh/Kconfig b/subsys/bluetooth/mesh/Kconfig
@@ -1488,7 +1488,7 @@ config BT_MESH_USES_MBEDTLS_PSA
 	select PSA_WANT_ALG_CMAC
 	select PSA_WANT_ALG_ECB_NO_PADDING
 	select PSA_WANT_KEY_TYPE_AES
-	select MBEDTLS_AES_ROM_TABLES
+	imply MBEDTLS_AES_ROM_TABLES
 	select PSA_WANT_ALG_CCM
 	select PSA_WANT_KEY_TYPE_HMAC
 	select PSA_WANT_ALG_HMAC
