[PATCH] selinux: remove security struct magic number fields and tests

Remove the SELinux security structure magic number fields and tests, along
with some unnecessary tests for NULL security pointers.  These fields and
tests are leftovers from the early attempts to support SELinux as a
loadable module during LSM development.

Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
Acked-by: James Morris <jmorris@namei.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 0 insertions, 8 deletions

diff --git a/security/selinux/include/objsec.h b/security/selinux/include/objsec.h
index 887937c8134a..54c030778882 100644
--- a/security/selinux/include/objsec.h
+++ b/security/selinux/include/objsec.h
@@ -27,7 +27,6 @@
 #include "avc.h"
 
 struct task_security_struct {
-        unsigned long magic;           /* magic number for this module */
         struct task_struct *task;      /* back pointer to task object */
         u32 osid;            /* SID prior to last execve */
         u32 sid;             /* current SID */
@@ -37,7 +36,6 @@ struct task_security_struct {
 };
 
 struct inode_security_struct {
-        unsigned long magic;           /* magic number for this module */
         struct inode *inode;           /* back pointer to inode object */
         struct list_head list;         /* list of inode_security_struct */
         u32 task_sid;        /* SID of creating task */
@@ -49,14 +47,12 @@ struct inode_security_struct {
 };
 
 struct file_security_struct {
-        unsigned long magic;            /* magic number for this module */
         struct file *file;              /* back pointer to file object */
         u32 sid;              /* SID of open file description */
         u32 fown_sid;         /* SID of file owner (for SIGIO) */
 };
 
 struct superblock_security_struct {
-        unsigned long magic;            /* magic number for this module */
         struct super_block *sb;         /* back pointer to sb object */
         struct list_head list;          /* list of superblock_security_struct */
         u32 sid;              /* SID of file system */
@@ -70,20 +66,17 @@ struct superblock_security_struct {
 };
 
 struct msg_security_struct {
-        unsigned long magic;            /* magic number for this module */
         struct msg_msg *msg;            /* back pointer */
         u32 sid;              /* SID of message */
 };
 
 struct ipc_security_struct {
-        unsigned long magic;            /* magic number for this module */
         struct kern_ipc_perm *ipc_perm; /* back pointer */
         u16 sclass;     /* security class of this object */
         u32 sid;              /* SID of IPC resource */
 };
 
 struct bprm_security_struct {
-        unsigned long magic;           /* magic number for this module */
         struct linux_binprm *bprm;     /* back pointer to bprm object */
         u32 sid;                       /* SID for transformed process */
         unsigned char set;
@@ -102,7 +95,6 @@ struct netif_security_struct {
 };
 
 struct sk_security_struct {
-        unsigned long magic;            /* magic number for this module */
         struct sock *sk;                /* back pointer to sk object */
         u32 peer_sid;                   /* SID of peer */
 };