This patch cleanups the WARN_ON which occurs when the sk buffer has
insufficient buffer space by moving the WARN_ON into if condition.
Signed-off-by: Alexander Aring <aar@xxxxxxxxxxxxxx>
---
include/net/mac802154.h | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/include/net/mac802154.h b/include/net/mac802154.h
index bb7bfec..286824a 100644
--- a/include/net/mac802154.h
+++ b/include/net/mac802154.h
@@ -250,11 +250,10 @@ static inline __le16 ieee802154_get_fc_from_skb(const struct sk_buff *skb)
__le16 fc;
/* check if we can fc at skb_mac_header of sk buffer */
- if (unlikely(!skb_mac_header_was_set(skb) ||
- (skb_tail_pointer(skb) - skb_mac_header(skb)) < 2)) {
- WARN_ON(1);
+ if (WARN_ON(!skb_mac_header_was_set(skb) ||
+ (skb_tail_pointer(skb) -
+ skb_mac_header(skb)) < IEEE802154_FC_LEN))
return cpu_to_le16(0);
- }
memcpy(&fc, skb_mac_header(skb), IEEE802154_FC_LEN);
return fc;
--
2.9.0
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