Make key_serial() an inline function rather than a macro if CONFIG_KEYS=y.
This prevents double evaluation of the key pointer and also provides better
type checking.
Signed-off-by: David Howells <dhowells@xxxxxxxxxx>
---
include/linux/key.h | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/include/linux/key.h b/include/linux/key.h
index ad02d9c..c45c962 100644
--- a/include/linux/key.h
+++ b/include/linux/key.h
@@ -264,7 +264,10 @@ extern int keyring_add_key(struct key *keyring,
extern struct key *key_lookup(key_serial_t id);
-#define key_serial(key) ((key) ? (key)->serial : 0)
+static inline key_serial_t key_serial(struct key *key)
+{
+ return key ? key->serial : 0;
+}
#ifdef CONFIG_SYSCTL
extern ctl_table key_sysctls[];
--
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