From: Andi Kleen <ak@linux.intel.com>
Date: Thu, 21 Dec 2017 23:37:32 +0000 (-0800)
Subject: ftrace: Mark function tracer test functions noinline/noclone
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=dd3dad0d716dbb9fccadcc8709900d9cac6ca252;p=linux.git

ftrace: Mark function tracer test functions noinline/noclone

The ftrace function tracer self tests calls some functions to verify
the get traced. This relies on them not being inlined. Previously
this was ensured by putting them into another file, but with LTO
the compiler can inline across files, which makes the tests fail.

Mark these functions as noinline and noclone.

Link: http://lkml.kernel.org/r/20171221233732.31896-1-andi@firstfloor.org

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
---

diff --git a/kernel/trace/trace_selftest_dynamic.c b/kernel/trace/trace_selftest_dynamic.c
index 8cda06a10d66e..c364cf777e1a5 100644
--- a/kernel/trace/trace_selftest_dynamic.c
+++ b/kernel/trace/trace_selftest_dynamic.c
@@ -1,13 +1,14 @@
 // SPDX-License-Identifier: GPL-2.0
+#include <linux/compiler.h>
 #include "trace.h"
 
-int DYN_FTRACE_TEST_NAME(void)
+noinline __noclone int DYN_FTRACE_TEST_NAME(void)
 {
 	/* used to call mcount */
 	return 0;
 }
 
-int DYN_FTRACE_TEST_NAME2(void)
+noinline __noclone int DYN_FTRACE_TEST_NAME2(void)
 {
 	/* used to call mcount */
 	return 0;