kernel/trace/trace_events_hist.c

892  * @var_idx: The trigger variable identifier
902 			unsigned int var_idx)
906 	if (hist_field && hist_field->var.idx == var_idx &&
917  * @var_idx: The trigger variable identifier
927 				       unsigned int var_idx)
934 		if (check_field_for_var_ref(hist_field, var_data, var_idx))
944  * @var_idx: The trigger variable identifier
956 					   unsigned int var_idx)
965 		found = find_var_ref(var_data->hist_data, hist_data, var_idx);
1282 	unsigned int i, var_idx;
1288 		var_idx = hist_field->var.idx;
1306 		if (!tracing_map_var_set(var_elt, var_idx)) {
1312 			var_val = tracing_map_read_var(var_elt, var_idx);
1314 			var_val = tracing_map_read_var_once(var_elt, var_idx);
3126 	unsigned int i, j, var_idx;
3138 		var_idx = var->var.idx;
3162 		tracing_map_set_var(elt, var_idx, var_val);
5152 	unsigned int i, var_idx;
5162 			var_idx = hist_field->var.idx;
5194 			tracing_map_set_var(elt, var_idx, hist_val);
5204 			var_idx = hist_field->var.idx;
5205 			tracing_map_set_var(elt, var_idx, hist_val);