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keys: fix trusted/encrypted keys sparse rcu_assign_pointer messages

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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>
This commit is contained in:
Mimi Zohar 2012-01-17 20:39:51 +00:00 • committed by James Morris
parent efde8b6e16
commit ee0b31a25a
4 changed files with 9 additions and 4 deletions
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3
include/linux/key.h
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@ -293,6 +293,9 @@ static inline bool key_is_instantiated(const struct key *key)
(rcu_dereference_protected((KEY)->payload.rcudata, \
rwsem_is_locked(&((struct key *)(KEY))->sem)))
#define rcu_assign_keypointer(KEY, PAYLOAD) \
(rcu_assign_pointer((KEY)->payload.rcudata, PAYLOAD))
#ifdef CONFIG_SYSCTL
extern ctl_table key_sysctls[];
#endif