selftest/bpf: centralize libbpf logging management for test_progs

[linux.git] / tools / testing / selftests / bpf / prog_tests / reference_tracking.c

diff --git a/tools/testing/selftests/bpf/prog_tests/reference_tracking.c b/tools/testing/selftests/bpf/prog_tests/reference_tracking.c
index 5633be43828fc59d3ba35b97de711f0e1bb30bdd..4a4f428d1a78e1732c1e71384017b9b1379624df 100644 (file)
--- a/tools/testing/selftests/bpf/prog_tests/reference_tracking.c
+++ b/tools/testing/selftests/bpf/prog_tests/reference_tracking.c
@@ -1,15 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 #include <test_progs.h>
 
-static int libbpf_debug_print(enum libbpf_print_level level,
-                             const char *format, va_list args)
-{
-       if (level == LIBBPF_DEBUG)
-               return 0;
-
-       return vfprintf(stderr, format, args);
-}
-
 void test_reference_tracking(void)
 {
        const char *file = "./test_sk_lookup_kern.o";
@@ -36,9 +27,11 @@ void test_reference_tracking(void)
 
                /* Expect verifier failure if test name has 'fail' */
                if (strstr(title, "fail") != NULL) {
-                       libbpf_set_print(NULL);
+                       libbpf_print_fn_t old_print_fn;
+
+                       old_print_fn = libbpf_set_print(NULL);
                        err = !bpf_program__load(prog, "GPL", 0);
-                       libbpf_set_print(libbpf_debug_print);
+                       libbpf_set_print(old_print_fn);
                } else {
                        err = bpf_program__load(prog, "GPL", 0);
                }