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authorArnd Bergmann <arnd@arndb.de>2025-06-20 13:21:22 +0200
committerAndrew Morton <akpm@linux-foundation.org>2025-06-25 15:55:04 -0700
commitb6f5e748587063d4ad3294d07ca29886851d9cd7 (patch)
treed7daab99a5fe7b6129aa35d23bba7a793969c7ff
parentc9e8efa0b384c43670852f955567b31a5eb4ac2b (diff)
crashdump: add CONFIG_KEYS dependency
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. Link: https://lkml.kernel.org/r/20250620112140.3396316-1-arnd@kernel.org Fixes: 62f17d9df692 ("crash_dump: retrieve dm crypt keys in kdump kernel") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Alexander Graf <graf@amazon.com> Cc: Baoquan He <bhe@redhat.com> Cc: Coiby Xu <coxu@redhat.com> Cc: Dave Vasilevsky <dave@vasilevsky.ca> Cc: Eric Biggers <ebiggers@google.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
-rw-r--r--kernel/Kconfig.kexec1
1 files changed, 1 insertions, 0 deletions
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