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-rw-r--r--ipc/msg.c9
-rw-r--r--ipc/sem.c10
-rw-r--r--ipc/shm.c10
-rw-r--r--ipc/util.c8
-rw-r--r--ipc/util.h2
5 files changed, 19 insertions, 20 deletions
diff --git a/ipc/msg.c b/ipc/msg.c
index 6498531..35e4018 100644
--- a/ipc/msg.c
+++ b/ipc/msg.c
@@ -306,15 +306,14 @@ static inline int msg_security(struct kern_ipc_perm *ipcp, int msgflg)
SYSCALL_DEFINE2(msgget, key_t, key, int, msgflg)
{
struct ipc_namespace *ns;
- struct ipc_ops msg_ops;
+ static const struct ipc_ops msg_ops = {
+ .getnew = newque,
+ .associate = msg_security,
+ };
struct ipc_params msg_params;
ns = current->nsproxy->ipc_ns;
- msg_ops.getnew = newque;
- msg_ops.associate = msg_security;
- msg_ops.more_checks = NULL;
-
msg_params.key = key;
msg_params.flg = msgflg;
diff --git a/ipc/sem.c b/ipc/sem.c
index bee5554..3fcbc96 100644
--- a/ipc/sem.c
+++ b/ipc/sem.c
@@ -564,7 +564,11 @@ static inline int sem_more_checks(struct kern_ipc_perm *ipcp,
SYSCALL_DEFINE3(semget, key_t, key, int, nsems, int, semflg)
{
struct ipc_namespace *ns;
- struct ipc_ops sem_ops;
+ static const struct ipc_ops sem_ops = {
+ .getnew = newary,
+ .associate = sem_security,
+ .more_checks = sem_more_checks,
+ };
struct ipc_params sem_params;
ns = current->nsproxy->ipc_ns;
@@ -572,10 +576,6 @@ SYSCALL_DEFINE3(semget, key_t, key, int, nsems, int, semflg)
if (nsems < 0 || nsems > ns->sc_semmsl)
return -EINVAL;
- sem_ops.getnew = newary;
- sem_ops.associate = sem_security;
- sem_ops.more_checks = sem_more_checks;
-
sem_params.key = key;
sem_params.flg = semflg;
sem_params.u.nsems = nsems;
diff --git a/ipc/shm.c b/ipc/shm.c
index 7645961..b54c93f 100644
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -609,15 +609,15 @@ static inline int shm_more_checks(struct kern_ipc_perm *ipcp,
SYSCALL_DEFINE3(shmget, key_t, key, size_t, size, int, shmflg)
{
struct ipc_namespace *ns;
- struct ipc_ops shm_ops;
+ static const struct ipc_ops shm_ops = {
+ .getnew = newseg,
+ .associate = shm_security,
+ .more_checks = shm_more_checks,
+ };
struct ipc_params shm_params;
ns = current->nsproxy->ipc_ns;
- shm_ops.getnew = newseg;
- shm_ops.associate = shm_security;
- shm_ops.more_checks = shm_more_checks;
-
shm_params.key = key;
shm_params.flg = shmflg;
shm_params.u.size = size;
diff --git a/ipc/util.c b/ipc/util.c
index 2eb0d1e..9b3fa38 100644
--- a/ipc/util.c
+++ b/ipc/util.c
@@ -317,7 +317,7 @@ int ipc_addid(struct ipc_ids *ids, struct kern_ipc_perm *new, int size)
* when the key is IPC_PRIVATE.
*/
static int ipcget_new(struct ipc_namespace *ns, struct ipc_ids *ids,
- struct ipc_ops *ops, struct ipc_params *params)
+ const struct ipc_ops *ops, struct ipc_params *params)
{
int err;
@@ -344,7 +344,7 @@ static int ipcget_new(struct ipc_namespace *ns, struct ipc_ids *ids,
*/
static int ipc_check_perms(struct ipc_namespace *ns,
struct kern_ipc_perm *ipcp,
- struct ipc_ops *ops,
+ const struct ipc_ops *ops,
struct ipc_params *params)
{
int err;
@@ -375,7 +375,7 @@ static int ipc_check_perms(struct ipc_namespace *ns,
* On success, the ipc id is returned.
*/
static int ipcget_public(struct ipc_namespace *ns, struct ipc_ids *ids,
- struct ipc_ops *ops, struct ipc_params *params)
+ const struct ipc_ops *ops, struct ipc_params *params)
{
struct kern_ipc_perm *ipcp;
int flg = params->flg;
@@ -678,7 +678,7 @@ out:
* Common routine called by sys_msgget(), sys_semget() and sys_shmget().
*/
int ipcget(struct ipc_namespace *ns, struct ipc_ids *ids,
- struct ipc_ops *ops, struct ipc_params *params)
+ const struct ipc_ops *ops, struct ipc_params *params)
{
if (params->key == IPC_PRIVATE)
return ipcget_new(ns, ids, ops, params);
diff --git a/ipc/util.h b/ipc/util.h
index 9c47d6f..e1153ad 100644
--- a/ipc/util.h
+++ b/ipc/util.h
@@ -201,7 +201,7 @@ static inline bool ipc_valid_object(struct kern_ipc_perm *perm)
struct kern_ipc_perm *ipc_obtain_object_check(struct ipc_ids *ids, int id);
int ipcget(struct ipc_namespace *ns, struct ipc_ids *ids,
- struct ipc_ops *ops, struct ipc_params *params);
+ const struct ipc_ops *ops, struct ipc_params *params);
void free_ipcs(struct ipc_namespace *ns, struct ipc_ids *ids,
void (*free)(struct ipc_namespace *, struct kern_ipc_perm *));
#endif
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