KEYS: Use bool in make_key_ref() and is_key_possessed()

Make make_key_ref() take a bool possession parameter and make
is_key_possessed() return a bool.

Signed-off-by: David Howells <dhowells@redhat.com>

3 files changed, 8 insertions, 8 deletions

diff --git a/Documentation/security/keys.txt b/Documentation/security/keys.txt
index 7b4145d00452..9ede67084f0b 100644
--- a/Documentation/security/keys.txt
+++ b/Documentation/security/keys.txt
@@ -865,15 +865,14 @@ encountered:
      calling processes has a searchable link to the key from one of its
      keyrings. There are three functions for dealing with these:
 
-        key_ref_t make_key_ref(const struct key *key,
-                               unsigned long possession);
+        key_ref_t make_key_ref(const struct key *key, bool possession);
 
         struct key *key_ref_to_ptr(const key_ref_t key_ref);
 
-        unsigned long is_key_possessed(const key_ref_t key_ref);
+        bool is_key_possessed(const key_ref_t key_ref);
 
      The first function constructs a key reference from a key pointer and
-     possession information (which must be 0 or 1 and not any other value).
+     possession information (which must be true or false).
 
      The second function retrieves the key pointer from a reference and the
      third retrieves the possession flag.
diff --git a/include/linux/key.h b/include/linux/key.h
index 4dfde1161c5e..51bce2950de4 100644
--- a/include/linux/key.h
+++ b/include/linux/key.h
@@ -99,7 +99,7 @@ struct keyring_name;
 typedef struct __key_reference_with_attributes *key_ref_t;
 
 static inline key_ref_t make_key_ref(const struct key *key,
-                                     unsigned long possession)
+                                     bool possession)
 {
         return (key_ref_t) ((unsigned long) key | possession);
 }
@@ -109,7 +109,7 @@ static inline struct key *key_ref_to_ptr(const key_ref_t key_ref)
         return (struct key *) ((unsigned long) key_ref & ~1UL);
 }
 
-static inline unsigned long is_key_possessed(const key_ref_t key_ref)
+static inline bool is_key_possessed(const key_ref_t key_ref)
 {
         return (unsigned long) key_ref & 1UL;
 }
diff --git a/security/keys/keyring.c b/security/keys/keyring.c
index 6ece7f2e5707..f78406372ebe 100644
--- a/security/keys/keyring.c
+++ b/security/keys/keyring.c
@@ -329,9 +329,10 @@ key_ref_t keyring_search_aux(key_ref_t keyring_ref,
 
         struct keyring_list *keylist;
         struct timespec now;
-        unsigned long possessed, kflags;
+        unsigned long kflags;
         struct key *keyring, *key;
         key_ref_t key_ref;
+        bool possessed;
         long err;
         int sp, nkeys, kix;
 
@@ -542,8 +543,8 @@ key_ref_t __keyring_search_one(key_ref_t keyring_ref,
                                key_perm_t perm)
 {
         struct keyring_list *klist;
-        unsigned long possessed;
         struct key *keyring, *key;
+        bool possessed;
         int nkeys, loop;
 
         keyring = key_ref_to_ptr(keyring_ref);