signals: join send_sigqueue() with send_group_sigqueue()

We export send_sigqueue() and send_group_sigqueue() for the only user,
posix_timer_event().  This is a bit silly, because both are just trivial
helpers on top of do_send_sigqueue() and because the we pass the unused
.si_signo parameter.

Kill them both, rename do_send_sigqueue() to send_sigqueue(), and export it.

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Roland McGrath <roland@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2 files changed, 3 insertions, 18 deletions

diff --git a/kernel/posix-timers.c b/kernel/posix-timers.c
index 8476956ffd92..dbd8398ddb0b 100644
--- a/kernel/posix-timers.c
+++ b/kernel/posix-timers.c
@@ -310,8 +310,7 @@ int posix_timer_event(struct k_itimer *timr,int si_private)
 
         if (timr->it_sigev_notify & SIGEV_THREAD_ID) {
                 struct task_struct *leader;
-                int ret = send_sigqueue(timr->it_sigev_signo, timr->sigq,
-                                        timr->it_process);
+                int ret = send_sigqueue(timr->sigq, timr->it_process, 0);
 
                 if (likely(ret >= 0))
                         return ret;
@@ -322,8 +321,7 @@ int posix_timer_event(struct k_itimer *timr,int si_private)
                 timr->it_process = leader;
         }
 
-        return send_group_sigqueue(timr->it_sigev_signo, timr->sigq,
-                                   timr->it_process);
+        return send_sigqueue(timr->sigq, timr->it_process, 1);
 }
 EXPORT_SYMBOL_GPL(posix_timer_event);
 
diff --git a/kernel/signal.c b/kernel/signal.c
index 367c6662b12f..d52a1fe921fa 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -1240,8 +1240,7 @@ void sigqueue_free(struct sigqueue *q)
         __sigqueue_free(q);
 }
 
-static int do_send_sigqueue(struct sigqueue *q, struct task_struct *t,
-                                int group)
+int send_sigqueue(struct sigqueue *q, struct task_struct *t, int group)
 {
         int sig = q->info.si_signo;
         struct sigpending *pending;
@@ -1266,7 +1265,6 @@ static int do_send_sigqueue(struct sigqueue *q, struct task_struct *t,
                  * If an SI_TIMER entry is already queue just increment
                  * the overrun count.
                  */
-
                 BUG_ON(q->info.si_code != SI_TIMER);
                 q->info.si_overrun++;
                 goto out;
@@ -1283,17 +1281,6 @@ ret:
         return ret;
 }
 
-int send_sigqueue(int sig, struct sigqueue *q, struct task_struct *p)
-{
-        return do_send_sigqueue(q, p, 0);
-}
-
-int
-send_group_sigqueue(int sig, struct sigqueue *q, struct task_struct *p)
-{
-        return do_send_sigqueue(q, p, 1);
-}
-
 /*
  * Wake up any threads in the parent blocked in wait* syscalls.
  */