ptrace: mark __ptrace_may_access() static

__ptrace_may_access() is used within only kernel/ptrace.c.

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <james.l.morris@oracle.com>

2 files changed, 2 insertions, 3 deletions

diff --git a/include/linux/ptrace.h b/include/linux/ptrace.h
index 597e4fdb97fe..3db698aee34c 100644
--- a/include/linux/ptrace.h
+++ b/include/linux/ptrace.h
@@ -130,8 +130,6 @@ extern void exit_ptrace(struct task_struct *tracer);
 #define PTRACE_MODE_READ        0x01
 #define PTRACE_MODE_ATTACH      0x02
 #define PTRACE_MODE_NOAUDIT     0x04
-/* Returns 0 on success, -errno on denial. */
-extern int __ptrace_may_access(struct task_struct *task, unsigned int mode);
 /* Returns true on success, false on denial. */
 extern bool ptrace_may_access(struct task_struct *task, unsigned int mode);
 
diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index a232bb59d93f..1f5e55dda955 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -180,7 +180,8 @@ static int ptrace_has_cap(struct user_namespace *ns, unsigned int mode)
                 return has_ns_capability(current, ns, CAP_SYS_PTRACE);
 }
 
-int __ptrace_may_access(struct task_struct *task, unsigned int mode)
+/* Returns 0 on success, -errno on denial. */
+static int __ptrace_may_access(struct task_struct *task, unsigned int mode)
 {
         const struct cred *cred = current_cred(), *tcred;