diff options
Diffstat (limited to 'kernel/trace/trace_kprobe.c')
| -rw-r--r-- | kernel/trace/trace_kprobe.c | 54 |
1 files changed, 19 insertions, 35 deletions
diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c index 16383247bdbf..8c5816c04bd2 100644 --- a/kernel/trace/trace_kprobe.c +++ b/kernel/trace/trace_kprobe.c @@ -2023,19 +2023,16 @@ static __init int kprobe_trace_self_tests_init(void) pr_info("Testing kprobe tracing: "); ret = create_or_delete_trace_kprobe("p:testprobe kprobe_trace_selftest_target $stack $stack0 +0($stack)"); - if (WARN_ON_ONCE(ret)) { - pr_warn("error on probing function entry.\n"); + if (WARN_ONCE(ret, "error on probing function entry.")) { warn++; } else { /* Enable trace point */ tk = find_trace_kprobe("testprobe", KPROBE_EVENT_SYSTEM); - if (WARN_ON_ONCE(tk == NULL)) { - pr_warn("error on getting new probe.\n"); + if (WARN_ONCE(tk == NULL, "error on probing function entry.")) { warn++; } else { file = find_trace_probe_file(tk, top_trace_array()); - if (WARN_ON_ONCE(file == NULL)) { - pr_warn("error on getting probe file.\n"); + if (WARN_ONCE(file == NULL, "error on getting probe file.")) { warn++; } else enable_trace_kprobe( @@ -2044,19 +2041,16 @@ static __init int kprobe_trace_self_tests_init(void) } ret = create_or_delete_trace_kprobe("r:testprobe2 kprobe_trace_selftest_target $retval"); - if (WARN_ON_ONCE(ret)) { - pr_warn("error on probing function return.\n"); + if (WARN_ONCE(ret, "error on probing function return.")) { warn++; } else { /* Enable trace point */ tk = find_trace_kprobe("testprobe2", KPROBE_EVENT_SYSTEM); - if (WARN_ON_ONCE(tk == NULL)) { - pr_warn("error on getting 2nd new probe.\n"); + if (WARN_ONCE(tk == NULL, "error on getting 2nd new probe.")) { warn++; } else { file = find_trace_probe_file(tk, top_trace_array()); - if (WARN_ON_ONCE(file == NULL)) { - pr_warn("error on getting probe file.\n"); + if (WARN_ONCE(file == NULL, "error on getting probe file.")) { warn++; } else enable_trace_kprobe( @@ -2079,18 +2073,15 @@ static __init int kprobe_trace_self_tests_init(void) /* Disable trace points before removing it */ tk = find_trace_kprobe("testprobe", KPROBE_EVENT_SYSTEM); - if (WARN_ON_ONCE(tk == NULL)) { - pr_warn("error on getting test probe.\n"); + if (WARN_ONCE(tk == NULL, "error on getting test probe.")) { warn++; } else { - if (trace_kprobe_nhit(tk) != 1) { - pr_warn("incorrect number of testprobe hits\n"); + if (WARN_ONCE(trace_kprobe_nhit(tk) != 1, + "incorrect number of testprobe hits.")) warn++; - } file = find_trace_probe_file(tk, top_trace_array()); - if (WARN_ON_ONCE(file == NULL)) { - pr_warn("error on getting probe file.\n"); + if (WARN_ONCE(file == NULL, "error on getting probe file.")) { warn++; } else disable_trace_kprobe( @@ -2098,18 +2089,15 @@ static __init int kprobe_trace_self_tests_init(void) } tk = find_trace_kprobe("testprobe2", KPROBE_EVENT_SYSTEM); - if (WARN_ON_ONCE(tk == NULL)) { - pr_warn("error on getting 2nd test probe.\n"); + if (WARN_ONCE(tk == NULL, "error on getting 2nd test probe.")) { warn++; } else { - if (trace_kprobe_nhit(tk) != 1) { - pr_warn("incorrect number of testprobe2 hits\n"); + if (WARN_ONCE(trace_kprobe_nhit(tk) != 1, + "incorrect number of testprobe2 hits.")) warn++; - } file = find_trace_probe_file(tk, top_trace_array()); - if (WARN_ON_ONCE(file == NULL)) { - pr_warn("error on getting probe file.\n"); + if (WARN_ONCE(file == NULL, "error on getting probe file.")) { warn++; } else disable_trace_kprobe( @@ -2117,23 +2105,19 @@ static __init int kprobe_trace_self_tests_init(void) } ret = create_or_delete_trace_kprobe("-:testprobe"); - if (WARN_ON_ONCE(ret)) { - pr_warn("error on deleting a probe.\n"); + if (WARN_ONCE(ret, "error on deleting a probe.")) warn++; - } ret = create_or_delete_trace_kprobe("-:testprobe2"); - if (WARN_ON_ONCE(ret)) { - pr_warn("error on deleting a probe.\n"); + if (WARN_ONCE(ret, "error on deleting a probe.")) warn++; - } + end: ret = dyn_events_release_all(&trace_kprobe_ops); - if (WARN_ON_ONCE(ret)) { - pr_warn("error on cleaning up probes.\n"); + if (WARN_ONCE(ret, "error on cleaning up probes.")) warn++; - } + /* * Wait for the optimizer work to finish. Otherwise it might fiddle * with probes in already freed __init text. |