3 files changed, 8 insertions, 13 deletions

diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index 19378715f415..b7cc21bc6ae0 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -1455,6 +1455,6 @@ asmregparm void syscall_trace_leave(struct pt_regs *regs)
          * system call instruction.
          */
         if (test_thread_flag(TIF_SINGLESTEP) &&
-            tracehook_consider_fatal_signal(current, SIGTRAP, SIG_DFL))
+            tracehook_consider_fatal_signal(current, SIGTRAP))
                 send_sigtrap(current, regs, 0, TRAP_BRKPT);
 }
diff --git a/include/linux/tracehook.h b/include/linux/tracehook.h
index 6186a789d6c7..eb4c6545b384 100644
--- a/include/linux/tracehook.h
+++ b/include/linux/tracehook.h
@@ -388,17 +388,14 @@ static inline void tracehook_signal_handler(int sig, siginfo_t *info,
  * tracehook_consider_ignored_signal - suppress short-circuit of ignored signal
  * @task:               task receiving the signal
  * @sig:                signal number being sent
- * @handler:            %SIG_IGN or %SIG_DFL
  *
  * Return zero iff tracing doesn't care to examine this ignored signal,
  * so it can short-circuit normal delivery and never even get queued.
- * Either @handler is %SIG_DFL and @sig's default is ignore, or it's %SIG_IGN.
  *
  * Called with @task->sighand->siglock held.
  */
 static inline int tracehook_consider_ignored_signal(struct task_struct *task,
-                                                    int sig,
-                                                    void __user *handler)
+                                                    int sig)
 {
         return (task_ptrace(task) & PT_PTRACED) != 0;
 }
@@ -407,19 +404,17 @@ static inline int tracehook_consider_ignored_signal(struct task_struct *task,
  * tracehook_consider_fatal_signal - suppress special handling of fatal signal
  * @task:               task receiving the signal
  * @sig:                signal number being sent
- * @handler:            %SIG_DFL or %SIG_IGN
  *
  * Return nonzero to prevent special handling of this termination signal.
- * Normally @handler is %SIG_DFL.  It can be %SIG_IGN if @sig is ignored,
- * in which case force_sig() is about to reset it to %SIG_DFL.
+ * Normally handler for signal is %SIG_DFL.  It can be %SIG_IGN if @sig is
+ * ignored, in which case force_sig() is about to reset it to %SIG_DFL.
  * When this returns zero, this signal might cause a quick termination
  * that does not give the debugger a chance to intercept the signal.
  *
  * Called with or without @task->sighand->siglock held.
  */
 static inline int tracehook_consider_fatal_signal(struct task_struct *task,
-                                                  int sig,
-                                                  void __user *handler)
+                                                  int sig)
 {
         return (task_ptrace(task) & PT_PTRACED) != 0;
 }
diff --git a/kernel/signal.c b/kernel/signal.c
index 1c8814481a11..92a1ab004498 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -74,7 +74,7 @@ static int sig_ignored(struct task_struct *t, int sig)
         /*
          * Tracers may want to know about even ignored signals.
          */
-        return !tracehook_consider_ignored_signal(t, sig, handler);
+        return !tracehook_consider_ignored_signal(t, sig);
 }
 
 /*
@@ -318,7 +318,7 @@ int unhandled_signal(struct task_struct *tsk, int sig)
                 return 1;
         if (handler != SIG_IGN && handler != SIG_DFL)
                 return 0;
-        return !tracehook_consider_fatal_signal(tsk, sig, handler);
+        return !tracehook_consider_fatal_signal(tsk, sig);
 }
 
 
@@ -777,7 +777,7 @@ static void complete_signal(int sig, struct task_struct *p, int group)
             !(signal->flags & (SIGNAL_UNKILLABLE | SIGNAL_GROUP_EXIT)) &&
             !sigismember(&t->real_blocked, sig) &&
             (sig == SIGKILL ||
-             !tracehook_consider_fatal_signal(t, sig, SIG_DFL))) {
+             !tracehook_consider_fatal_signal(t, sig))) {
                 /*
                  * This signal will be fatal to the whole group.
                  */