FILTER_PTR_STRING 1552 kernel/trace/trace.h field->filter_type == FILTER_PTR_STRING || FILTER_PTR_STRING 1090 kernel/trace/trace_events_filter.c return FILTER_PTR_STRING; FILTER_PTR_STRING 5323 kernel/trace/trace_events_hist.c else if (field->filter_type == FILTER_PTR_STRING)