apparmor: remove parent task info from audit logging

The reporting of the parent task info is a vestage from old versions of
apparmor. The need for this information was removed by unique null-
profiles before apparmor was upstreamed so remove this info from logging.

Signed-off-by: John Johansen <john.johansen@canonical.com>

2 files changed, 0 insertions, 7 deletions

diff --git a/security/apparmor/audit.c b/security/apparmor/audit.c
index e32c4483fba1..89c78658031f 100644
--- a/security/apparmor/audit.c
+++ b/security/apparmor/audit.c
@@ -111,7 +111,6 @@ static const char *const aa_audit_type[] = {
 static void audit_pre(struct audit_buffer *ab, void *ca)
 {
         struct common_audit_data *sa = ca;
-        struct task_struct *tsk = sa->u.tsk ? sa->u.tsk : current;
 
         if (aa_g_audit_header) {
                 audit_log_format(ab, "apparmor=");
@@ -132,11 +131,6 @@ static void audit_pre(struct audit_buffer *ab, void *ca)
 
         if (sa->aad->profile) {
                 struct aa_profile *profile = sa->aad->profile;
-                pid_t pid;
-                rcu_read_lock();
-                pid = rcu_dereference(tsk->real_parent)->pid;
-                rcu_read_unlock();
-                audit_log_format(ab, " parent=%d", pid);
                 if (profile->ns != root_ns) {
                         audit_log_format(ab, " namespace=");
                         audit_log_untrustedstring(ab, profile->ns->base.hname);
diff --git a/security/apparmor/include/audit.h b/security/apparmor/include/audit.h
index 30e8d7687259..ba3dfd17f23f 100644
--- a/security/apparmor/include/audit.h
+++ b/security/apparmor/include/audit.h
@@ -109,7 +109,6 @@ struct apparmor_audit_data {
         void *profile;
         const char *name;
         const char *info;
-        struct task_struct *tsk;
         union {
                 void *target;
                 struct {