diff options
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/livepatch_trampoline.c | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/livepatch_trampoline.c b/tools/testing/selftests/bpf/prog_tests/livepatch_trampoline.c index 72aa5376c30e..0a12af924a99 100644 --- a/tools/testing/selftests/bpf/prog_tests/livepatch_trampoline.c +++ b/tools/testing/selftests/bpf/prog_tests/livepatch_trampoline.c @@ -5,6 +5,8 @@ #include "testing_helpers.h" #include "livepatch_trampoline.skel.h" +#define LIVEPATCH_ENABLED_PATH "/sys/kernel/livepatch/livepatch_sample/enabled" + static int load_livepatch(void) { char path[4096]; @@ -19,7 +21,8 @@ static int load_livepatch(void) static void unload_livepatch(void) { /* Disable the livepatch before unloading the module */ - system("echo 0 > /sys/kernel/livepatch/livepatch_sample/enabled"); + if (!access(LIVEPATCH_ENABLED_PATH, F_OK)) + system("echo 0 > " LIVEPATCH_ENABLED_PATH); unload_module("livepatch_sample", env_verbosity > VERBOSE_NONE); } @@ -81,9 +84,22 @@ out: void test_livepatch_trampoline(void) { int retry_cnt = 0; + int err; + + /* Skip if kernel was built without CONFIG_LIVEPATCH */ + if (access("/sys/kernel/livepatch", F_OK)) { + test__skip(); + return; + } retry: - if (load_livepatch()) { + err = load_livepatch(); + if (err) { + if (err == -ENOENT) { + test__skip(); + return; + } + if (retry_cnt) { ASSERT_OK(1, "load_livepatch"); goto out; |