Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

[platform/kernel/linux-rpi.git] / samples / bpf / tracex6_user.c

diff --git a/samples/bpf/tracex6_user.c b/samples/bpf/tracex6_user.c
index a8c22dc..89ab8d4 100644 (file)
--- a/samples/bpf/tracex6_user.c
+++ b/samples/bpf/tracex6_user.c
@@ -23,6 +23,7 @@
 
 static void check_on_cpu(int cpu, struct perf_event_attr *attr)
 {
+       struct bpf_perf_event_value value2;
        int pmu_fd, error = 0;
        cpu_set_t set;
        __u64 value;
@@ -47,8 +48,18 @@ static void check_on_cpu(int cpu, struct perf_event_attr *attr)
                fprintf(stderr, "Value missing for CPU %d\n", cpu);
                error = 1;
                goto on_exit;
+       } else {
+               fprintf(stderr, "CPU %d: %llu\n", cpu, value);
+       }
+       /* The above bpf_map_lookup_elem should trigger the second kprobe */
+       if (bpf_map_lookup_elem(map_fd[2], &cpu, &value2)) {
+               fprintf(stderr, "Value2 missing for CPU %d\n", cpu);
+               error = 1;
+               goto on_exit;
+       } else {
+               fprintf(stderr, "CPU %d: counter: %llu, enabled: %llu, running: %llu\n", cpu,
+                       value2.counter, value2.enabled, value2.running);
        }
-       fprintf(stderr, "CPU %d: %llu\n", cpu, value);
 
 on_exit:
        assert(bpf_map_delete_elem(map_fd[0], &cpu) == 0 || error);