我正在构建一个非常简单的内核模块,用于从网卡收集一些统计信息,这是代码,我不断收到错误消息implicit declaration of function 'ndo_get_stats'
。我不确定为什么...
#include <linux/module.h> /* Needed by all modules */
#include <linux/kernel.h> /* Needed for KERN_INFO */
#include <linux/netdevice.h> /* Needed for netdevice*/
static int __init hello_start(void)
{
struct net_device *dev;
printk(KERN_INFO "Loading Stats module...\n");
printk(KERN_ALERT "Hello world\n");
dev = first_net_device(&init_net);
while (dev)
{
printk(KERN_INFO "found [%s] and it's [%d]\n", dev->name, dev->flags & IFF_UP);
printk(KERN_INFO "End of dev struct ... now starts the get_stats struct\n");
dev->stats = ndo_get_stats(dev);
printk(KERN_INFO "recive errors: [%li]\n transmission errors: [%li]\n number of collisions: [%li]", dev->stats.rx_errors , dev->stats.tx_errors, dev->stats.collisions);
dev = next_net_device(dev);
}
return 0;
}
static void __exit hello_end(void)
{
printk(KERN_ALERT "Goodbye.\n");
}
module_init(hello_start);
module_exit(hello_end);
谢谢