snmp_get_cpu_field64
u64 snmp_get_cpu_field64(void __percpu *mib, int cpu, int offct,
buff64[i] += snmp_get_cpu_field64( \
EXPORT_SYMBOL_GPL(snmp_get_cpu_field64);
res += snmp_get_cpu_field64(mib, cpu, offt, syncp_offset);
buff[i] += snmp_get_cpu_field64(mib, c, i, syncpoff);