TRACING_MAP_FIELDS_MAX 89 kernel/trace/trace_events_hist.c #define HIST_FIELDS_MAX (TRACING_MAP_FIELDS_MAX + TRACING_MAP_VARS_MAX) TRACING_MAP_FIELDS_MAX 206 kernel/trace/tracing_map.c if (map->n_fields < TRACING_MAP_FIELDS_MAX) { TRACING_MAP_FIELDS_MAX 193 kernel/trace/tracing_map.h struct tracing_map_field fields[TRACING_MAP_FIELDS_MAX];