[PATCH] keys/trusted_keys: mark 'migratable' as __ro_after_init

[Len Bao]

The 'migratable' variable is initialized only during the init phase
in the 'init_trusted' function and never changed. So, mark it as
__ro_after_init.

Signed-off-by: Len Bao <len.bao at gmx.us>
---
 security/keys/trusted-keys/trusted_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/security/keys/trusted-keys/trusted_core.c b/security/keys/trusted-keys/trusted_core.c
index 0b142d941..433579365 100644
--- a/security/keys/trusted-keys/trusted_core.c
+++ b/security/keys/trusted-keys/trusted_core.c
@@ -59,7 +59,7 @@ DEFINE_STATIC_CALL_NULL(trusted_key_unseal,
 DEFINE_STATIC_CALL_NULL(trusted_key_get_random,
 			*trusted_key_sources[0].ops->get_random);
 static void (*trusted_key_exit)(void);
-static unsigned char migratable;
+static unsigned char migratable __ro_after_init;
 
 enum {
 	Opt_err,
-- 
2.43.0