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mac80211: make ieee80211_get_hdrlen_from_skb return unsigned
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Many callers already expect it to.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Harvey Harrison authored and John W. Linville committed Jun 14, 2008
1 parent 8b7b1e0 commit c9c6950
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Showing 2 changed files with 5 additions and 5 deletions.
2 changes: 1 addition & 1 deletion include/net/mac80211.h
Original file line number Diff line number Diff line change
Expand Up @@ -1535,7 +1535,7 @@ ieee80211_get_buffered_bc(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
*
* @skb: the frame
*/
int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb);
unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb);

/**
* ieee80211_get_hdrlen - get header length from frame control
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8 changes: 4 additions & 4 deletions net/mac80211/util.c
Original file line number Diff line number Diff line change
Expand Up @@ -133,14 +133,14 @@ int ieee80211_get_hdrlen(u16 fc)
}
EXPORT_SYMBOL(ieee80211_get_hdrlen);

int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb)
unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb)
{
const struct ieee80211_hdr *hdr = (const struct ieee80211_hdr *) skb->data;
int hdrlen;
const struct ieee80211_hdr *hdr = (const struct ieee80211_hdr *)skb->data;
unsigned int hdrlen;

if (unlikely(skb->len < 10))
return 0;
hdrlen = ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_control));
hdrlen = ieee80211_hdrlen(hdr->frame_control);
if (unlikely(hdrlen > skb->len))
return 0;
return hdrlen;
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