[NET]: Add netdev_alloc_skb().

[pandora-kernel.git] / include / linux / skbuff.h

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 4307e76..b91fbfb 100644 (file)
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -1104,6 +1104,28 @@ static inline struct sk_buff *dev_alloc_skb(unsigned int length)
        return __dev_alloc_skb(length, GFP_ATOMIC);
 }
 
+extern struct sk_buff *__netdev_alloc_skb(struct net_device *dev,
+               unsigned int length, gfp_t gfp_mask);
+
+/**
+ *     netdev_alloc_skb - allocate an skbuff for rx on a specific device
+ *     @dev: network device to receive on
+ *     @length: length to allocate
+ *
+ *     Allocate a new &sk_buff and assign it a usage count of one. The
+ *     buffer has unspecified headroom built in. Users should allocate
+ *     the headroom they think they need without accounting for the
+ *     built in space. The built in space is used for optimisations.
+ *
+ *     %NULL is returned if there is no free memory. Although this function
+ *     allocates memory it can be called from an interrupt.
+ */
+static inline struct sk_buff *netdev_alloc_skb(struct net_device *dev,
+               unsigned int length)
+{
+       return __netdev_alloc_skb(dev, length, GFP_ATOMIC);
+}
+
 /**
  *     skb_cow - copy header of skb when it is required
  *     @skb: buffer to cow