Checking if at least one valid trust source is selected does not scale
and becomes hard to read. This improves this in preparation for the DCP
trust source.
Signed-off-by: David Gstir <da...@sigma-star.at>
---
security/keys/trusted-keys/Kconfig | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/security/keys/trusted-keys/Kconfig
b/security/keys/trusted-keys/Kconfig
index dbfdd8536468..553dc117f385 100644
--- a/security/keys/trusted-keys/Kconfig
+++ b/security/keys/trusted-keys/Kconfig
@@ -1,3 +1,6 @@
+config HAVE_TRUSTED_KEYS
+ bool
+
config TRUSTED_KEYS_TPM
bool "TPM-based trusted keys"
depends on TCG_TPM >= TRUSTED_KEYS
@@ -9,6 +12,7 @@ config TRUSTED_KEYS_TPM
select ASN1_ENCODER
select OID_REGISTRY
select ASN1
+ select HAVE_TRUSTED_KEYS
help
Enable use of the Trusted Platform Module (TPM) as trusted key
backend. Trusted keys are random number symmetric keys,
@@ -20,6 +24,7 @@ config TRUSTED_KEYS_TEE
bool "TEE-based trusted keys"
depends on TEE >= TRUSTED_KEYS
default y
+ select HAVE_TRUSTED_KEYS
help
Enable use of the Trusted Execution Environment (TEE) as trusted
key backend.
@@ -29,10 +34,11 @@ config TRUSTED_KEYS_CAAM
depends on CRYPTO_DEV_FSL_CAAM_JR >= TRUSTED_KEYS
select CRYPTO_DEV_FSL_CAAM_BLOB_GEN
default y
+ select HAVE_TRUSTED_KEYS
help
Enable use of NXP's Cryptographic Accelerator and Assurance Module
(CAAM) as trusted key backend.
-if !TRUSTED_KEYS_TPM && !TRUSTED_KEYS_TEE && !TRUSTED_KEYS_CAAM
-comment "No trust source selected!"
+if !HAVE_TRUSTED_KEYS
+ comment "No trust source selected!"
endif
--
2.35.3
