X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=include%2Flinux%2Fskbuff.h;h=755e9cddac47eebe516751a55929f4339b576c5f;hb=55669bfa141b488be865341ed12e188967d11308;hp=b22d4a6083bdf884e73ee5ed57c0e63e68f38ec3;hpb=76f10ad0e67cbc6ded2ee143e5188e0b7ff9fb15;p=linux-2.6-omap-h63xx.git

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index b22d4a6083b..755e9cddac4 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -604,8 +604,6 @@ static inline __u32 skb_queue_len(const struct sk_buff_head *list_)
 	return list_->qlen;
 }
 
-extern struct lock_class_key skb_queue_lock_key;
-
 /*
  * This function creates a split out lock class for each invocation;
  * this is needed for now since a whole lot of users of the skb-queue
@@ -1041,6 +1039,21 @@ static inline int pskb_trim(struct sk_buff *skb, unsigned int len)
 	return (len < skb->len) ? __pskb_trim(skb, len) : 0;
 }
 
+/**
+ *	pskb_trim_unique - remove end from a paged unique (not cloned) buffer
+ *	@skb: buffer to alter
+ *	@len: new length
+ *
+ *	This is identical to pskb_trim except that the caller knows that
+ *	the skb is not cloned so we should never get an error due to out-
+ *	of-memory.
+ */
+static inline void pskb_trim_unique(struct sk_buff *skb, unsigned int len)
+{
+	int err = pskb_trim(skb, len);
+	BUG_ON(err);
+}
+
 /**
  *	skb_orphan - orphan a buffer
  *	@skb: buffer to orphan
@@ -1083,7 +1096,7 @@ static inline void __skb_queue_purge(struct sk_buff_head *list)
  *	the headroom they think they need without accounting for the
  *	built in space. The built in space is used for optimisations.
  *
- *	%NULL is returned in there is no free memory.
+ *	%NULL is returned if there is no free memory.
  */
 static inline struct sk_buff *__dev_alloc_skb(unsigned int length,
 					      gfp_t gfp_mask)
@@ -1103,7 +1116,7 @@ static inline struct sk_buff *__dev_alloc_skb(unsigned int length,
  *	the headroom they think they need without accounting for the
  *	built in space. The built in space is used for optimisations.
  *
- *	%NULL is returned in there is no free memory. Although this function
+ *	%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 *dev_alloc_skb(unsigned int length)