From: Arnd Bergmann <arnd@arndb.de>
The dm_crypt code fails to build without CONFIG_KEYS:
kernel/crash_dump_dm_crypt.c: In function 'restore_dm_crypt_keys_to_thread_keyring':
kernel/crash_dump_dm_crypt.c:105:9: error: unknown type name 'key_ref_t'; did you mean 'key_ref_put'?
There is a mix of 'select KEYS' and 'depends on KEYS' in Kconfig,
so there is no single obvious solution here, but generally using 'depends on'
makes more sense and is less likely to cause dependency loops.
Fixes: 62f17d9df692 ("crash_dump: retrieve dm crypt keys in kdump kernel")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
kernel/Kconfig.kexec | 1 +
1 file changed, 1 insertion(+)
diff --git a/kernel/Kconfig.kexec b/kernel/Kconfig.kexec
index e64ce21f9a80..2ee603a98813 100644
--- a/kernel/Kconfig.kexec
+++ b/kernel/Kconfig.kexec
@@ -134,6 +134,7 @@ config CRASH_DM_CRYPT
depends on KEXEC_FILE
depends on CRASH_DUMP
depends on DM_CRYPT
+ depends on KEYS
help
With this option enabled, user space can intereact with
/sys/kernel/config/crash_dm_crypt_keys to make the dm crypt keys
--
2.39.5