perf_reg_validate   20 include/linux/perf_regs.h int perf_reg_validate(u64 mask);
perf_reg_validate 10712 kernel/events/core.c 		ret = perf_reg_validate(attr->sample_regs_user);
perf_reg_validate 10736 kernel/events/core.c 		ret = perf_reg_validate(attr->sample_regs_intr);