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authorDavid Howells <dhowells@redhat.com>2008-04-29 01:01:34 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-04-29 08:06:17 -0700
commit7249db2c281ac688977ecc6862cdee9969d310e2 (patch)
tree7d0c42af5c2cb3724fd18aa3aff8de3c827bfe77
parentfdb89bce6c9ccb17dae13ec43a25d2fdd405233f (diff)
keys: make key_serial() a function if CONFIG_KEYS=y
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@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--include/linux/key.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/include/linux/key.h b/include/linux/key.h
index ad02d9cfe17..c45c962d1cc 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[];