[PATCH] selinux: eliminate selinux_task_ctxid

Eliminate selinux_task_ctxid since it duplicates selinux_task_get_sid.

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>

include/linux/selinux.h

@@ -69,16 +69,6 @@ int selinux_audit_rule_match(u32 ctxid, u32 field, u32 op,
  */
 void selinux_audit_set_callback(int (*callback)(void));
 
-/**
- *	selinux_task_ctxid - determine a context ID for a process.
- *	@tsk: the task object
- *	@ctxid: ID value returned via this
- *
- *	On return, ctxid will contain an ID for the context.  This value
- *	should only be used opaquely.
- */
-void selinux_task_ctxid(struct task_struct *tsk, u32 *ctxid);
-
 /**
  *     selinux_ctxid_to_string - map a security context ID to a string
  *     @ctxid: security context ID to be converted.
@@ -166,11 +156,6 @@ static inline void selinux_audit_set_callback(int (*callback)(void))
 	return;
 }
 
-static inline void selinux_task_ctxid(struct task_struct *tsk, u32 *ctxid)
-{
-	*ctxid = 0;
-}
-
 static inline int selinux_ctxid_to_string(u32 ctxid, char **ctx, u32 *ctxlen)
 {
        *ctx = NULL;

kernel/auditsc.c

@@ -385,7 +385,7 @@ static int audit_filter_rules(struct task_struct *tsk,
 			   logged upon error */
 			if (f->se_rule) {
 				if (need_sid) {
-					selinux_task_ctxid(tsk, &sid);
+					selinux_get_task_sid(tsk, &sid);
 					need_sid = 0;
 				}
 				result = selinux_audit_rule_match(sid, f->type,

security/selinux/exports.c

@@ -21,15 +21,6 @@
 #include "security.h"
 #include "objsec.h"
 
-void selinux_task_ctxid(struct task_struct *tsk, u32 *ctxid)
-{
-	struct task_security_struct *tsec = tsk->security;
-	if (selinux_enabled)
-		*ctxid = tsec->sid;
-	else
-		*ctxid = 0;
-}
-
 int selinux_ctxid_to_string(u32 ctxid, char **ctx, u32 *ctxlen)
 {
 	if (selinux_enabled)