[TCP] Allow len == skb->len in tcp_fragment
It is legitimate to call tcp_fragment with len == skb->len since
that is done for FIN packets and the FIN flag counts as one byte.
So we should only check for the len > skb->len case.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 7114031..b907456 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -435,17 +435,7 @@
int nsize, old_factor;
u16 flags;
- if (unlikely(len >= skb->len)) {
- if (net_ratelimit()) {
- printk(KERN_DEBUG "TCP: seg_size=%u, mss=%u, seq=%u, "
- "end_seq=%u, skb->len=%u.\n", len, mss_now,
- TCP_SKB_CB(skb)->seq, TCP_SKB_CB(skb)->end_seq,
- skb->len);
- WARN_ON(1);
- }
- return 0;
- }
-
+ BUG_ON(len > skb->len);
nsize = skb_headlen(skb) - len;
if (nsize < 0)
nsize = 0;