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authorEyal Birger <eyal.birger@gmail.com>2015-03-01 15:58:29 +0300
committerDavid S. Miller <davem@davemloft.net>2015-03-02 08:19:30 +0300
commitb4772ef879a8f7d8c56118c2ae5a296fcf6f81d2 (patch)
treeb4498c776c28e5c87cdeebf17577d002bcd21d47 /net/packet
parent2472d7613bd3bae40a7dc75539c0858d5b9e795a (diff)
downloadlinux-b4772ef879a8f7d8c56118c2ae5a296fcf6f81d2.tar.xz
net: use common macro for assering skb->cb[] available size in protocol families
As part of an effort to move skb->dropcount to skb->cb[] use a common macro in protocol families using skb->cb[] for ancillary data to validate available room in skb->cb[]. Signed-off-by: Eyal Birger <eyal.birger@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/packet')
-rw-r--r--net/packet/af_packet.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index 7eea30b9c8e5..9cdb414cd231 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -1816,8 +1816,7 @@ static int packet_rcv(struct sk_buff *skb, struct net_device *dev,
skb = nskb;
}
- BUILD_BUG_ON(sizeof(*PACKET_SKB_CB(skb)) + MAX_ADDR_LEN - 8 >
- sizeof(skb->cb));
+ sock_skb_cb_check_size(sizeof(*PACKET_SKB_CB(skb)) + MAX_ADDR_LEN - 8);
sll = &PACKET_SKB_CB(skb)->sa.ll;
sll->sll_hatype = dev->type;