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| author | Eyal Birger <eyal.birger@gmail.com> | 2015-03-01 14:58:29 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-03-02 00:19:30 -0500 |
| commit | b4772ef879a8f7d8c56118c2ae5a296fcf6f81d2 (patch) | |
| tree | b4498c776c28e5c87cdeebf17577d002bcd21d47 /include | |
| parent | 2472d7613bd3bae40a7dc75539c0858d5b9e795a (diff) | |
| download | lwn-b4772ef879a8f7d8c56118c2ae5a296fcf6f81d2.tar.gz lwn-b4772ef879a8f7d8c56118c2ae5a296fcf6f81d2.zip | |
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 'include')
| -rw-r--r-- | include/net/sock.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/net/sock.h b/include/net/sock.h index ab186b1d31ff..a2502d248641 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -2078,6 +2078,9 @@ static inline int sock_intr_errno(long timeo) return timeo == MAX_SCHEDULE_TIMEOUT ? -ERESTARTSYS : -EINTR; } +#define sock_skb_cb_check_size(size) \ + BUILD_BUG_ON((size) > FIELD_SIZEOF(struct sk_buff, cb)) + void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk, struct sk_buff *skb); void __sock_recv_wifi_status(struct msghdr *msg, struct sock *sk, |