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[NET]: Treat the sign of the result of skb_headroom() consistently

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In some places, the result of skb_headroom() is compared to an unsigned
integer, and in others, the result is compared to a signed integer.  Make
the comparisons consistent and correct.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Chuck Lever
2007-10-23 21:07:32 -07:00
committed by David S. Miller
parent 0ffdd58149
commit c2636b4d9e
9 changed files with 10 additions and 10 deletions
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4
include/linux/skbuff.h
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@@ -994,7 +994,7 @@ static inline int pskb_may_pull(struct sk_buff *skb, unsigned int len)
*
* Return the number of bytes of free space at the head of an &sk_buff.
*/
static inline int skb_headroom(const struct sk_buff *skb)
static inline unsigned int skb_headroom(const struct sk_buff *skb)
{
return skb->data - skb->head;
}
@@ -1347,7 +1347,7 @@ static inline struct sk_buff *netdev_alloc_skb(struct net_device *dev,
* Returns true if modifying the header part of the cloned buffer
* does not requires the data to be copied.
*/
static inline int skb_clone_writable(struct sk_buff *skb, int len)
static inline int skb_clone_writable(struct sk_buff *skb, unsigned int len)
{
return !skb_header_cloned(skb) &&
skb_headroom(skb) + len <= skb->hdr_len;