tracing/ftrace: provide the macro task_curr_ret_stack()

Impact: cleanup

As suggested by Steven Rostedt, this patch provide a new macro
task_curr_ret_stack() to move the cpp conditionnal CONFIG into
the linux/ftrace.h headers.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 1 insertions, 7 deletions

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 5dca6ef1fbeb..7a93c663e52a 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -3657,13 +3657,7 @@ int __ftrace_printk(unsigned long ip, const char *fmt, ...)
                 return 0;
 
         va_start(ap, fmt);
-
-#ifdef CONFIG_FUNCTION_GRAPH_TRACER
-        ret = trace_vprintk(ip, current->curr_ret_stack, fmt, ap);
-#else
-        ret = trace_vprintk(ip, -1, fmt, ap);
-#endif
-
+        ret = trace_vprintk(ip, task_curr_ret_stack(current), fmt, ap);
         va_end(ap);
         return ret;
 }