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[PATCH] KEYS: Permit key_serial() to be called with a const key pointer



Permit key_serial() to be called with a const key pointer.

Signed-off-by: David Howells <dhowells@xxxxxxxxxx>
---

 include/linux/key.h |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/include/linux/key.h b/include/linux/key.h
index bfc014c..5253471 100644
--- a/include/linux/key.h
+++ b/include/linux/key.h
@@ -271,7 +271,7 @@ extern int keyring_add_key(struct key *keyring,
 
 extern struct key *key_lookup(key_serial_t id);
 
-static inline key_serial_t key_serial(struct key *key)
+static inline key_serial_t key_serial(const struct key *key)
 {
 	return key ? key->serial : 0;
 }

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