diff options
| author | Pavel Emelyanov | 2007-12-11 11:12:04 +0100 |
|---|---|---|
| committer | David S. Miller | 2008-01-28 23:57:07 +0100 |
| commit | 1f9e636ea21bd648a5cbd2f744a1d39a5e183b20 (patch) | |
| tree | 33d4c23d9c2a64ed042151f51962754af3359692 /net/ipv4/tcp.c | |
| parent | [NETLINK]: kzalloc() conversion (diff) | |
| download | kernel-qcow2-linux-1f9e636ea21bd648a5cbd2f744a1d39a5e183b20.tar.gz kernel-qcow2-linux-1f9e636ea21bd648a5cbd2f744a1d39a5e183b20.tar.xz kernel-qcow2-linux-1f9e636ea21bd648a5cbd2f744a1d39a5e183b20.zip | |
[TCP]: Use BUILD_BUG_ON for tcp_skb_cb size checking
The sizeof(struct tcp_skb_cb) should not be less than the
sizeof(skb->cb). This is checked in net/ipv4/tcp.c, but
this check can be made more gracefully.
Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp.c')
| -rw-r--r-- | net/ipv4/tcp.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index eb77088f3054..fdaf965a6794 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -2563,7 +2563,6 @@ void tcp_done(struct sock *sk) } EXPORT_SYMBOL_GPL(tcp_done); -extern void __skb_cb_too_small_for_tcp(int, int); extern struct tcp_congestion_ops tcp_reno; static __initdata unsigned long thash_entries; @@ -2582,9 +2581,7 @@ void __init tcp_init(void) unsigned long limit; int order, i, max_share; - if (sizeof(struct tcp_skb_cb) > sizeof(skb->cb)) - __skb_cb_too_small_for_tcp(sizeof(struct tcp_skb_cb), - sizeof(skb->cb)); + BUILD_BUG_ON(sizeof(struct tcp_skb_cb) > sizeof(skb->cb)); tcp_hashinfo.bind_bucket_cachep = kmem_cache_create("tcp_bind_bucket", |