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audit: move audit_get_tty to reduce scope and kabi changes

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The only users of audit_get_tty and audit_put_tty are internal to
audit, so move it out of include/linux/audit.h to kernel.h and create
a proper function rather than inlining it.  This also reduces kABI
changes.

Suggested-by: Paul Moore <pmoore@redhat.com>
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
[PM: line wrapped description]
Signed-off-by: Paul Moore <paul@paul-moore.com>
This commit is contained in:
Richard Guy Briggs
2016-06-28 12:07:50 -04:00
committed by Paul Moore
parent 76a658c20e
commit 3f5be2da85
4 changed files with 21 additions and 25 deletions
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24
include/linux/audit.h
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@@ -26,7 +26,6 @@
#include <linux/sched.h>
#include <linux/ptrace.h>
#include <uapi/linux/audit.h>
#include <linux/tty.h>
#define AUDIT_INO_UNSET ((unsigned long)-1)
#define AUDIT_DEV_UNSET ((dev_t)-1)
@@ -344,23 +343,6 @@ static inline unsigned int audit_get_sessionid(struct task_struct *tsk)
return tsk->sessionid;
}
static inline struct tty_struct *audit_get_tty(struct task_struct *tsk)
{
struct tty_struct *tty = NULL;
unsigned long flags;
spin_lock_irqsave(&tsk->sighand->siglock, flags);
if (tsk->signal)
tty = tty_kref_get(tsk->signal->tty);
spin_unlock_irqrestore(&tsk->sighand->siglock, flags);
return tty;
}
static inline void audit_put_tty(struct tty_struct *tty)
{
tty_kref_put(tty);
}
extern void __audit_ipc_obj(struct kern_ipc_perm *ipcp);
extern void __audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid, umode_t mode);
extern void __audit_bprm(struct linux_binprm *bprm);
@@ -518,12 +500,6 @@ static inline unsigned int audit_get_sessionid(struct task_struct *tsk)
{
return -1;
}
static inline struct tty_struct *audit_get_tty(struct task_struct *tsk)
{
return NULL;
}
static inline void audit_put_tty(struct tty_struct *tty)
{ }
static inline void audit_ipc_obj(struct kern_ipc_perm *ipcp)
{ }
static inline void audit_ipc_set_perm(unsigned long qbytes, uid_t uid,