tetragon: Adjust TestMissedProgStatsKprobeMulti test for session

Signed-off-by: Jiri Olsa <[email protected]>

pkg/sensors/tracing/kprobe_test.go

@@ -7013,14 +7013,22 @@ spec:
 		fmt.Printf("Failed to execute test binary: %s\n", err)
 	}
 
-	expected := strings.NewReader(` # HELP tetragon_missed_prog_probes_total The total number of Tetragon probe missed by program.
+	s := `  # HELP tetragon_missed_prog_probes_total The total number of Tetragon probe missed by program.
 # TYPE tetragon_missed_prog_probes_total counter
 tetragon_missed_prog_probes_total{attach="acct_process",policy="__base__"} 0
-tetragon_missed_prog_probes_total{attach="kprobe_multi (2 functions)",policy="syswritefollowfdpsswd"} 1
+tetragon_missed_prog_probes_total{attach="kprobe_session (2 functions)",policy="syswritefollowfdpsswd"} %d
 tetragon_missed_prog_probes_total{attach="sched/sched_process_exec",policy="__base__"} 0
 tetragon_missed_prog_probes_total{attach="security_bprm_committing_creds",policy="__base__"} 0
 tetragon_missed_prog_probes_total{attach="wake_up_new_task",policy="__base__"} 0
-`)
+`
+
+	// Session programs get accounted missed counts also for return
+	// probe even if it's not executed.
+	missed := 1
+	if bpf.HasKprobeSession() {
+		missed = 2
+	}
+	expected := strings.NewReader(fmt.Sprintf(s, missed))
 
 	assert.NoError(t, testutil.GatherAndCompare(metricsconfig.GetRegistry(), expected,
 		prometheus.BuildFQName(consts.MetricsNamespace, "", "missed_prog_probes_total")))