Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
[linux-2.6.git] / drivers / net / can / dev.c
index 39b99f5..c1bb29f 100644 (file)
@@ -366,17 +366,12 @@ void can_restart(unsigned long data)
        can_flush_echo_skb(dev);
 
        /* send restart message upstream */
-       skb = dev_alloc_skb(sizeof(struct can_frame));
+       skb = alloc_can_err_skb(dev, &cf);
        if (skb == NULL) {
                err = -ENOMEM;
                goto restart;
        }
-       skb->dev = dev;
-       skb->protocol = htons(ETH_P_CAN);
-       cf = (struct can_frame *)skb_put(skb, sizeof(struct can_frame));
-       memset(cf, 0, sizeof(struct can_frame));
-       cf->can_id = CAN_ERR_FLAG | CAN_ERR_RESTARTED;
-       cf->can_dlc = CAN_ERR_DLC;
+       cf->can_id |= CAN_ERR_RESTARTED;
 
        netif_rx(skb);
 
@@ -449,6 +444,39 @@ static void can_setup(struct net_device *dev)
        dev->features = NETIF_F_NO_CSUM;
 }
 
+struct sk_buff *alloc_can_skb(struct net_device *dev, struct can_frame **cf)
+{
+       struct sk_buff *skb;
+
+       skb = netdev_alloc_skb(dev, sizeof(struct can_frame));
+       if (unlikely(!skb))
+               return NULL;
+
+       skb->protocol = htons(ETH_P_CAN);
+       skb->pkt_type = PACKET_BROADCAST;
+       skb->ip_summed = CHECKSUM_UNNECESSARY;
+       *cf = (struct can_frame *)skb_put(skb, sizeof(struct can_frame));
+       memset(*cf, 0, sizeof(struct can_frame));
+
+       return skb;
+}
+EXPORT_SYMBOL_GPL(alloc_can_skb);
+
+struct sk_buff *alloc_can_err_skb(struct net_device *dev, struct can_frame **cf)
+{
+       struct sk_buff *skb;
+
+       skb = alloc_can_skb(dev, cf);
+       if (unlikely(!skb))
+               return NULL;
+
+       (*cf)->can_id = CAN_ERR_FLAG;
+       (*cf)->can_dlc = CAN_ERR_DLC;
+
+       return skb;
+}
+EXPORT_SYMBOL_GPL(alloc_can_err_skb);
+
 /*
  * Allocate and setup space for the CAN network device
  */
@@ -609,6 +637,22 @@ static int can_changelink(struct net_device *dev,
        return 0;
 }
 
+static size_t can_get_size(const struct net_device *dev)
+{
+       struct can_priv *priv = netdev_priv(dev);
+       size_t size;
+
+       size = nla_total_size(sizeof(u32));   /* IFLA_CAN_STATE */
+       size += sizeof(struct can_ctrlmode);  /* IFLA_CAN_CTRLMODE */
+       size += nla_total_size(sizeof(u32));  /* IFLA_CAN_RESTART_MS */
+       size += sizeof(struct can_bittiming); /* IFLA_CAN_BITTIMING */
+       size += sizeof(struct can_clock);     /* IFLA_CAN_CLOCK */
+       if (priv->bittiming_const)            /* IFLA_CAN_BITTIMING_CONST */
+               size += sizeof(struct can_bittiming_const);
+
+       return size;
+}
+
 static int can_fill_info(struct sk_buff *skb, const struct net_device *dev)
 {
        struct can_priv *priv = netdev_priv(dev);
@@ -633,6 +677,11 @@ nla_put_failure:
        return -EMSGSIZE;
 }
 
+static size_t can_get_xstats_size(const struct net_device *dev)
+{
+       return sizeof(struct can_device_stats);
+}
+
 static int can_fill_xstats(struct sk_buff *skb, const struct net_device *dev)
 {
        struct can_priv *priv = netdev_priv(dev);
@@ -646,7 +695,7 @@ nla_put_failure:
        return -EMSGSIZE;
 }
 
-static int can_newlink(struct net_device *dev,
+static int can_newlink(struct net *src_net, struct net_device *dev,
                       struct nlattr *tb[], struct nlattr *data[])
 {
        return -EOPNOTSUPP;
@@ -659,7 +708,9 @@ static struct rtnl_link_ops can_link_ops __read_mostly = {
        .setup          = can_setup,
        .newlink        = can_newlink,
        .changelink     = can_changelink,
+       .get_size       = can_get_size,
        .fill_info      = can_fill_info,
+       .get_xstats_size = can_get_xstats_size,
        .fill_xstats    = can_fill_xstats,
 };