KEYS: Merge the type-specific data with the payload data

Merge the type-specific data with the payload data into one four-word chunk
as it seems pointless to keep them separate.

Use user_key_payload() for accessing the payloads of overloaded
user-defined keys.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: linux-cifs@vger.kernel.org
cc: ecryptfs@vger.kernel.org
cc: linux-ext4@vger.kernel.org
cc: linux-f2fs-devel@lists.sourceforge.net
cc: linux-nfs@vger.kernel.org
cc: ceph-devel@vger.kernel.org
cc: linux-ima-devel@lists.sourceforge.net

1 files changed, 14 insertions, 13 deletions

diff --git a/Documentation/crypto/asymmetric-keys.txt b/Documentation/crypto/asymmetric-keys.txt
index b7675904a747..8c07e0ea6bc0 100644
--- a/Documentation/crypto/asymmetric-keys.txt
+++ b/Documentation/crypto/asymmetric-keys.txt
@@ -186,7 +186,7 @@ and looks like the following:
                                         const struct public_key_signature *sig);
         };
 
-Asymmetric keys point to this with their type_data[0] member.
+Asymmetric keys point to this with their payload[asym_subtype] member.
 
 The owner and name fields should be set to the owning module and the name of
 the subtype.  Currently, the name is only used for print statements.
@@ -269,8 +269,7 @@ mandatory:
 
         struct key_preparsed_payload {
                 char            *description;
-                void            *type_data[2];
-                void            *payload;
+                void            *payload[4];
                 const void      *data;
                 size_t          datalen;
                 size_t          quotalen;
@@ -283,16 +282,18 @@ mandatory:
      not theirs.
 
      If the parser is happy with the blob, it should propose a description for
-     the key and attach it to ->description, ->type_data[0] should be set to
-     point to the subtype to be used, ->payload should be set to point to the
-     initialised data for that subtype, ->type_data[1] should point to a hex
-     fingerprint and quotalen should be updated to indicate how much quota this
-     key should account for.
-
-     When clearing up, the data attached to ->type_data[1] and ->description
-     will be kfree()'d and the data attached to ->payload will be passed to the
-     subtype's ->destroy() method to be disposed of.  A module reference for
-     the subtype pointed to by ->type_data[0] will be put.
+     the key and attach it to ->description, ->payload[asym_subtype] should be
+     set to point to the subtype to be used, ->payload[asym_crypto] should be
+     set to point to the initialised data for that subtype,
+     ->payload[asym_key_ids] should point to one or more hex fingerprints and
+     quotalen should be updated to indicate how much quota this key should
+     account for.
+
+     When clearing up, the data attached to ->payload[asym_key_ids] and
+     ->description will be kfree()'d and the data attached to
+     ->payload[asm_crypto] will be passed to the subtype's ->destroy() method
+     to be disposed of.  A module reference for the subtype pointed to by
+     ->payload[asym_subtype] will be put.
 
 
      If the data format is not recognised, -EBADMSG should be returned.  If it