With -Wmissing-prototypes the compiler will warn about non-static
functions which don't have a prototype defined.
As they are not used from a different compilation unit they don't need to
be defined globally.

Avoid the issue by marking the functions static.

Signed-off-by: Thomas Weißschuh <thomas.weisssc...@linutronix.de>
---
 tools/testing/selftests/kselftest_harness.h | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/tools/testing/selftests/kselftest_harness.h 
b/tools/testing/selftests/kselftest_harness.h
index 
2b350ed60b2bf1cbede8e3a9b4ac5fe716900144..5822bc0b86a3c623fd34830fb8b541b27672a00b
 100644
--- a/tools/testing/selftests/kselftest_harness.h
+++ b/tools/testing/selftests/kselftest_harness.h
@@ -258,7 +258,7 @@
  * A bare "return;" statement may be used to return early.
  */
 #define FIXTURE_SETUP(fixture_name) \
-       void fixture_name##_setup( \
+       static void fixture_name##_setup( \
                struct __test_metadata __attribute__((unused)) *_metadata, \
                FIXTURE_DATA(fixture_name) __attribute__((unused)) *self, \
                const FIXTURE_VARIANT(fixture_name) \
@@ -307,7 +307,7 @@
        __FIXTURE_TEARDOWN(fixture_name)
 
 #define __FIXTURE_TEARDOWN(fixture_name) \
-       void fixture_name##_teardown( \
+       static void fixture_name##_teardown( \
                struct __test_metadata __attribute__((unused)) *_metadata, \
                FIXTURE_DATA(fixture_name) __attribute__((unused)) *self, \
                const FIXTURE_VARIANT(fixture_name) \
@@ -987,7 +987,7 @@ static void __timeout_handler(int sig, siginfo_t *info, 
void *ucontext)
        kill(-(t->pid), SIGKILL);
 }
 
-void __wait_for_test(struct __test_metadata *t)
+static void __wait_for_test(struct __test_metadata *t)
 {
        struct sigaction action = {
                .sa_sigaction = __timeout_handler,
@@ -1205,9 +1205,9 @@ static bool test_enabled(int argc, char **argv,
        return !has_positive;
 }
 
-void __run_test(struct __fixture_metadata *f,
-               struct __fixture_variant_metadata *variant,
-               struct __test_metadata *t)
+static void __run_test(struct __fixture_metadata *f,
+                      struct __fixture_variant_metadata *variant,
+                      struct __test_metadata *t)
 {
        struct __test_xfail *xfail;
        char test_name[1024];

-- 
2.48.1


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