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apparmor: Simplify obtain the newest label on a cred 

In aa_get_task_label(), aa_get_newest_cred_label(__task_cred(task))
can do the same things as aa_get_newest_label(__aa_task_raw_label(task)),
so we can replace it and remove __aa_task_raw_label() to simplify the code.

Signed-off-by: Gaosheng Cui <cuigaosheng1@huawei.com>
Signed-off-by: John Johansen <john.johansen@canonical.com>
This commit is contained in:
Gaosheng Cui 2022-09-23 17:21:18 +08:00 committed by John Johansen
parent 1f939c6bd1
commit adaa9a3f72
2 changed files with 1 additions and 14 deletions
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13
security/apparmor/include/cred.h
View File

@ -63,19 +63,6 @@ static inline struct aa_label *aa_get_newest_cred_label(const struct cred *cred)
return aa_get_newest_label(aa_cred_raw_label(cred));
}
/**
* __aa_task_raw_label - retrieve another task's label
* @task: task to query (NOT NULL)
*
* Returns: @task's label without incrementing its ref count
*
* If @task != current needs to be called in RCU safe critical section
*/
static inline struct aa_label *__aa_task_raw_label(struct task_struct *task)
{
return aa_cred_raw_label(__task_cred(task));
}
/**
* aa_current_raw_label - find the current tasks confining label
*

2
security/apparmor/task.c
View File

@ -31,7 +31,7 @@ struct aa_label *aa_get_task_label(struct task_struct *task)
struct aa_label *p;
rcu_read_lock();
p = aa_get_newest_label(__aa_task_raw_label(task));
p = aa_get_newest_cred_label(__task_cred(task));
rcu_read_unlock();
return p;