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authorMimi Zohar <zohar@linux.vnet.ibm.com>2012-01-17 20:39:51 +0000
committerJames Morris <jmorris@namei.org>2012-01-18 10:41:29 +1100
commitee0b31a25a010116f44fca6c96f4516d417793dd (patch)
treed7670d202d0f4888b5213ed73d88c9a80bd05b74 /security
parentefde8b6e16f11e7d1681c68d86c7fd51053cada7 (diff)
downloadlinaro-lsk-ee0b31a25a010116f44fca6c96f4516d417793dd.tar.gz
keys: fix trusted/encrypted keys sparse rcu_assign_pointer messages
Define rcu_assign_keypointer(), which uses the key payload.rcudata instead of payload.data, to resolve the CONFIG_SPARSE_RCU_POINTER message: "incompatible types in comparison expression (different address spaces)" Replace the rcu_assign_pointer() calls in encrypted/trusted keys with rcu_assign_keypointer(). Signed-off-by: Mimi Zohar <zohar@us.ibm.com> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'security')
-rw-r--r--security/keys/encrypted-keys/encrypted.c4
-rw-r--r--security/keys/encrypted-keys/masterkey_trusted.c2
-rw-r--r--security/keys/trusted.c4
3 files changed, 6 insertions, 4 deletions
diff --git a/security/keys/encrypted-keys/encrypted.c b/security/keys/encrypted-keys/encrypted.c
index 41144f71d61..d91efb6901e 100644
--- a/security/keys/encrypted-keys/encrypted.c
+++ b/security/keys/encrypted-keys/encrypted.c
@@ -810,7 +810,7 @@ static int encrypted_instantiate(struct key *key, const void *data,
goto out;
}
- rcu_assign_pointer(key->payload.data, epayload);
+ rcu_assign_keypointer(key, epayload);
out:
kfree(datablob);
return ret;
@@ -874,7 +874,7 @@ static int encrypted_update(struct key *key, const void *data, size_t datalen)
memcpy(new_epayload->payload_data, epayload->payload_data,
epayload->payload_datalen);
- rcu_assign_pointer(key->payload.data, new_epayload);
+ rcu_assign_keypointer(key, new_epayload);
call_rcu(&epayload->rcu, encrypted_rcu_free);
out:
kfree(buf);
diff --git a/security/keys/encrypted-keys/masterkey_trusted.c b/security/keys/encrypted-keys/masterkey_trusted.c
index df87272e3f5..8c16c3e472e 100644
--- a/security/keys/encrypted-keys/masterkey_trusted.c
+++ b/security/keys/encrypted-keys/masterkey_trusted.c
@@ -18,6 +18,8 @@
#include <linux/module.h>
#include <linux/err.h>
#include <keys/trusted-type.h>
+#include <keys/encrypted-type.h>
+#include "encrypted.h"
/*
* request_trusted_key - request the trusted key
diff --git a/security/keys/trusted.c b/security/keys/trusted.c
index 0ed5fdf238a..2d5d041f204 100644
--- a/security/keys/trusted.c
+++ b/security/keys/trusted.c
@@ -993,7 +993,7 @@ out:
kfree(datablob);
kfree(options);
if (!ret)
- rcu_assign_pointer(key->payload.data, payload);
+ rcu_assign_keypointer(key, payload);
else
kfree(payload);
return ret;
@@ -1067,7 +1067,7 @@ static int trusted_update(struct key *key, const void *data, size_t datalen)
goto out;
}
}
- rcu_assign_pointer(key->payload.data, new_p);
+ rcu_assign_keypointer(key, new_p);
call_rcu(&p->rcu, trusted_rcu_free);
out:
kfree(datablob);