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-rw-r--r--net/ipv4/tcp.c5
1 files changed, 1 insertions, 4 deletions
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index eb77088f305..fdaf965a679 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",