validate_group    711 arch/mips/kernel/perf_event_mipsxx.c static int validate_group(struct perf_event *event)
validate_group    771 arch/nds32/kernel/perf_event_cpu.c static int validate_group(struct perf_event *event)
validate_group   2044 arch/x86/events/core.c static int validate_group(struct perf_event *event)
validate_group   1253 drivers/perf/arm-cci.c static int validate_group(struct perf_event *event)
validate_group    311 drivers/perf/arm_pmu.c validate_group(struct perf_event *event)