+
+static void __init
+trace_boot_init_histograms(struct trace_event_file *file,
+ struct xbc_node *hnode, char *buf, size_t size)
+{
+ struct xbc_node *node;
+ const char *p;
+
+ xbc_node_for_each_subkey(hnode, node) {
+ p = xbc_node_get_data(node);
+ if (!isdigit(p[0]))
+ continue;
+ /* All digit started node should be instances. */
+ if (trace_boot_compose_hist_cmd(node, buf, size) == 0) {
+ if (trigger_process_regex(file, buf) < 0)
+ pr_err("Failed to apply hist trigger: %s\n", buf);
+ }
+ }
+
+ if (xbc_node_find_child(hnode, "keys")) {
+ if (trace_boot_compose_hist_cmd(hnode, buf, size) == 0)
+ if (trigger_process_regex(file, buf) < 0)
+ pr_err("Failed to apply hist trigger: %s\n", buf);
+ }
+}