diff options
Diffstat (limited to 'net/ipv4/tcp_input.c')
| -rw-r--r-- | net/ipv4/tcp_input.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index d9b83d198c3d..68d4057cba00 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -61,6 +61,8 @@ * Pasi Sarolahti: F-RTO for dealing with spurious RTOs */ +#define pr_fmt(fmt) "TCP: " fmt + #include <linux/mm.h> #include <linux/slab.h> #include <linux/module.h> @@ -1585,6 +1587,10 @@ static struct sk_buff *tcp_shift_skb_data(struct sock *sk, struct sk_buff *skb, } } + /* tcp_sacktag_one() won't SACK-tag ranges below snd_una */ + if (!after(TCP_SKB_CB(skb)->seq + len, tp->snd_una)) + goto fallback; + if (!skb_shift(prev, skb, len)) goto fallback; if (!tcp_shifted_skb(sk, skb, state, pcount, len, mss, dup_sack)) @@ -3863,9 +3869,9 @@ void tcp_parse_options(const struct sk_buff *skb, struct tcp_options_received *o opt_rx->wscale_ok = 1; if (snd_wscale > 14) { if (net_ratelimit()) - printk(KERN_INFO "tcp_parse_options: Illegal window " - "scaling value %d >14 received.\n", - snd_wscale); + pr_info("%s: Illegal window scaling value %d >14 received\n", + __func__, + snd_wscale); snd_wscale = 14; } opt_rx->snd_wscale = snd_wscale; @@ -4187,7 +4193,7 @@ static void tcp_fin(struct sock *sk) /* Only TCP_LISTEN and TCP_CLOSE are left, in these * cases we should never reach this piece of code. */ - printk(KERN_ERR "%s: Impossible, sk->sk_state=%d\n", + pr_err("%s: Impossible, sk->sk_state=%d\n", __func__, sk->sk_state); break; } |