tracing: Remove ftrace_trace_stack_regs()

ftrace_trace_stack_regs() is used in only one place, and because that is
such a simple function, just move its code into the location that it was
used in (trace_buffer_unlock_commit_regs()).

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

1 files changed, 14 insertions, 10 deletions

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 6e79408674aa..50820887dce9 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -468,6 +468,18 @@ static inline void trace_access_lock_init(void)
 
 #endif
 
+#ifdef CONFIG_STACKTRACE
+static void __ftrace_trace_stack(struct ring_buffer *buffer,
+                                 unsigned long flags,
+                                 int skip, int pc, struct pt_regs *regs);
+#else
+static inline void __ftrace_trace_stack(struct ring_buffer *buffer,
+                                        unsigned long flags,
+                                        int skip, int pc, struct pt_regs *regs)
+{
+}
+#endif
+
 /* trace_flags holds trace_options default values */
 unsigned long trace_flags = TRACE_ITER_PRINT_PARENT | TRACE_ITER_PRINTK |
         TRACE_ITER_ANNOTATE | TRACE_ITER_CONTEXT_INFO | TRACE_ITER_SLEEP_TIME |
@@ -1744,7 +1756,8 @@ void trace_buffer_unlock_commit_regs(struct ring_buffer *buffer,
 {
         __buffer_unlock_commit(buffer, event);
 
-        ftrace_trace_stack_regs(buffer, flags, 0, pc, regs);
+        if (trace_flags & TRACE_ITER_STACKTRACE)
+                __ftrace_trace_stack(buffer, flags, 0, pc, regs);
         ftrace_trace_userstack(buffer, flags, pc);
 }
 EXPORT_SYMBOL_GPL(trace_buffer_unlock_commit_regs);
@@ -1873,15 +1886,6 @@ static void __ftrace_trace_stack(struct ring_buffer *buffer,
 
 }
 
-void ftrace_trace_stack_regs(struct ring_buffer *buffer, unsigned long flags,
-                             int skip, int pc, struct pt_regs *regs)
-{
-        if (!(trace_flags & TRACE_ITER_STACKTRACE))
-                return;
-
-        __ftrace_trace_stack(buffer, flags, skip, pc, regs);
-}
-
 void ftrace_trace_stack(struct ring_buffer *buffer, unsigned long flags,
                         int skip, int pc)
 {