[NET]: Make IFLA_STATS arch independent.

include/linux/rtnetlink.h

@@ -459,6 +459,40 @@ struct ifinfomsg
 	unsigned	ifi_change;		/* IFF_* change mask */
 };
 
+/* The struct should be in sync with struct net_device_stats */
+struct rtnl_link_stats
+{
+	__u32	rx_packets;		/* total packets received	*/
+	__u32	tx_packets;		/* total packets transmitted	*/
+	__u32	rx_bytes;		/* total bytes received 	*/
+	__u32	tx_bytes;		/* total bytes transmitted	*/
+	__u32	rx_errors;		/* bad packets received		*/
+	__u32	tx_errors;		/* packet transmit problems	*/
+	__u32	rx_dropped;		/* no space in linux buffers	*/
+	__u32	tx_dropped;		/* no space available in linux	*/
+	__u32	multicast;		/* multicast packets received	*/
+	__u32	collisions;
+
+	/* detailed rx_errors: */
+	__u32	rx_length_errors;
+	__u32	rx_over_errors;		/* receiver ring buff overflow	*/
+	__u32	rx_crc_errors;		/* recved pkt with crc error	*/
+	__u32	rx_frame_errors;	/* recv'd frame alignment error */
+	__u32	rx_fifo_errors;		/* recv'r fifo overrun		*/
+	__u32	rx_missed_errors;	/* receiver missed packet	*/
+
+	/* detailed tx_errors */
+	__u32	tx_aborted_errors;
+	__u32	tx_carrier_errors;
+	__u32	tx_fifo_errors;
+	__u32	tx_heartbeat_errors;
+	__u32	tx_window_errors;
+	
+	/* for cslip etc */
+	__u32	rx_compressed;
+	__u32	tx_compressed;
+};
+
 enum
 {
 	IFLA_UNSPEC,
@@ -600,6 +634,22 @@ extern void __rta_fill(struct sk_buff *skb, int attrtype, int attrlen, const voi
 ({ if (skb_tailroom(skb) < (int)RTA_SPACE(attrlen)) goto rtattr_failure; \
    __rta_fill(skb, attrtype, attrlen, data); })
 
+static inline struct rtattr *
+__rta_reserve(struct sk_buff *skb, int attrtype, int attrlen)
+{
+	struct rtattr *rta;
+	int size = RTA_LENGTH(attrlen);
+
+	rta = (struct rtattr*)skb_put(skb, RTA_ALIGN(size));
+	rta->rta_type = attrtype;
+	rta->rta_len = size;
+	return rta;
+}
+
+#define __RTA_PUT(skb, attrtype, attrlen) \
+({ if (skb_tailroom(skb) < (int)RTA_SPACE(attrlen)) goto rtattr_failure; \
+   __rta_reserve(skb, attrtype, attrlen); })
+
 extern void rtmsg_ifinfo(int type, struct net_device *dev, unsigned change);
 
 extern struct semaphore rtnl_sem;

net/core/rtnetlink.c

@@ -191,9 +191,18 @@ static int rtnetlink_fill_ifinfo(struct sk_buff *skb, struct net_device *dev,
 	if (dev->master)
 		RTA_PUT(skb, IFLA_MASTER, sizeof(int), &dev->master->ifindex);
 	if (dev->get_stats) {
-		struct net_device_stats *stats = dev->get_stats(dev);
-		if (stats)
-			RTA_PUT(skb, IFLA_STATS, sizeof(*stats), stats);
+		unsigned long *stats = (unsigned long*)dev->get_stats(dev);
+		if (stats) {
+			struct rtattr  *a;
+			__u32	       *s;
+			int		i;
+			int		n = sizeof(struct rtnl_link_stats)/4;
+
+			a = __RTA_PUT(skb, IFLA_STATS, n*4);
+			s = RTA_DATA(a);
+			for (i=0; i<n; i++)
+				s[i] = stats[i];
+		}
 	}
 	nlh->nlmsg_len = skb->tail - b;
 	return skb->len;