#include <asm/hwrpb.h>#include <linux/device.h>  #ifdef CONFIG_SYSFS static int cpu_is_ev6_or_later(void){	struct percpu_struct *cpu;        unsigned long cputype;         cpu = (struct percpu_struct *)((char *)hwrpb + hwrpb->processor_offset);        cputype = cpu->type & 0xffffffff;        /* Include all of EV6, EV67, EV68, EV7, EV79 and EV69. */        return (cputype == EV6_CPU) || ((cputype >= EV67_CPU) && (cputype <= EV69_CPU));} ssize_t cpu_show_meltdown(struct device *dev,			  struct device_attribute *attr, char *buf){	if (cpu_is_ev6_or_later())		return sprintf(buf, "Vulnerable\n");	else		return sprintf(buf, "Not affected\n");} ssize_t cpu_show_spectre_v1(struct device *dev,                            struct device_attribute *attr, char *buf){	if (cpu_is_ev6_or_later())		return sprintf(buf, "Vulnerable\n");	else		return sprintf(buf, "Not affected\n");} ssize_t cpu_show_spectre_v2(struct device *dev,			    struct device_attribute *attr, char *buf){	if (cpu_is_ev6_or_later())		return sprintf(buf, "Vulnerable\n");	else		return sprintf(buf, "Not affected\n");}#endif