[PATCH] IMA: add INTEGRITY_ASYMMETRIC_KEYS dependency

[Arnd Bergmann <arnd@arndb.de>]

The newly added CONFIG_IMA_KEYRINGS_PERMIT_SIGNED_BY_BUILTIN_OR_SECONDARY
option only makes sense in combination with INTEGRITY_ASYMMETRIC_KEYS,
otherwise we get a build error:

warning: (IMA_KEYRINGS_PERMIT_SIGNED_BY_BUILTIN_OR_SECONDARY) selects INTEGRITY_TRUSTED_KEYRING which has unmet direct dependencies (INTEGRITY && SYSTEM_TRUSTED_KEYRING && INTEGRITY_ASYMMETRIC_KEYS)
security/integrity/evm/evm_main.c: In function 'evm_load_x509':
security/integrity/evm/evm_main.c:494:7: error: implicit declaration of function 'integrity_load_x509'
  rc = integrity_load_x509(INTEGRITY_KEYRING_EVM, CONFIG_EVM_X509_PATH);

This adds a Kconfig dependency.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 9e1bbe8b8992 ("IMA: Use the the system trusted keyrings instead of .ima_mok")
---
 security/integrity/ima/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/security/integrity/ima/Kconfig b/security/integrity/ima/Kconfig
index aab9b0a53edf..5487827fa86c 100644
--- a/security/integrity/ima/Kconfig
+++ b/security/integrity/ima/Kconfig
@@ -159,6 +159,7 @@ config IMA_KEYRINGS_PERMIT_SIGNED_BY_BUILTIN_OR_SECONDARY
 	bool "Permit keys validly signed by a built-in or secondary CA cert (EXPERIMENTAL)"
 	depends on SYSTEM_TRUSTED_KEYRING
 	depends on SECONDARY_TRUSTED_KEYRING
+	depends on INTEGRITY_ASYMMETRIC_KEYS
 	select INTEGRITY_TRUSTED_KEYRING
 	default n
 	help
-- 
2.7.0