diff options
Diffstat (limited to 'net/ipv4/tcp_output.c')
| -rw-r--r-- | net/ipv4/tcp_output.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index b1b2045ac3a9..b3a31b4df57c 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -1111,11 +1111,17 @@ static void tcp_adjust_pcount(struct sock *sk, const struct sk_buff *skb, int de tcp_verify_left_out(tp); } +static bool tcp_has_tx_tstamp(const struct sk_buff *skb) +{ + return TCP_SKB_CB(skb)->txstamp_ack || + (skb_shinfo(skb)->tx_flags & SKBTX_ANY_TSTAMP); +} + static void tcp_fragment_tstamp(struct sk_buff *skb, struct sk_buff *skb2) { struct skb_shared_info *shinfo = skb_shinfo(skb); - if (unlikely(shinfo->tx_flags & SKBTX_ANY_TSTAMP) && + if (unlikely(tcp_has_tx_tstamp(skb)) && !before(shinfo->tskey, TCP_SKB_CB(skb2)->seq)) { struct skb_shared_info *shinfo2 = skb_shinfo(skb2); u8 tsflags = shinfo->tx_flags & SKBTX_ANY_TSTAMP; @@ -2446,13 +2452,12 @@ u32 __tcp_select_window(struct sock *sk) void tcp_skb_collapse_tstamp(struct sk_buff *skb, const struct sk_buff *next_skb) { - const struct skb_shared_info *next_shinfo = skb_shinfo(next_skb); - u8 tsflags = next_shinfo->tx_flags & SKBTX_ANY_TSTAMP; - - if (unlikely(tsflags)) { + if (unlikely(tcp_has_tx_tstamp(next_skb))) { + const struct skb_shared_info *next_shinfo = + skb_shinfo(next_skb); struct skb_shared_info *shinfo = skb_shinfo(skb); - shinfo->tx_flags |= tsflags; + shinfo->tx_flags |= next_shinfo->tx_flags & SKBTX_ANY_TSTAMP; shinfo->tskey = next_shinfo->tskey; TCP_SKB_CB(skb)->txstamp_ack |= TCP_SKB_CB(next_skb)->txstamp_ack; |