diff options
| author | Eric Dumazet <edumazet@google.com> | 2021-10-27 23:19:23 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-10-28 14:44:39 +0300 |
| commit | 8b7d8c2bdb7653605aaa1770b882e79b25ba4002 (patch) | |
| tree | 07320be5053af4596e9e59a9099f4b6aa36c1385 /net | |
| parent | 4f2266748eabc42f107ecb6a3cc5b34614b29a12 (diff) | |
| download | linux-8b7d8c2bdb7653605aaa1770b882e79b25ba4002.tar.xz | |
tcp: do not clear TCP_SKB_CB(skb)->sacked if already zero
Freshly allocated skbs have zero in skb->cb[] already.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/ipv4/tcp.c | 1 | ||||
| -rw-r--r-- | net/ipv4/tcp_output.c | 5 |
2 files changed, 0 insertions, 6 deletions
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 88475b640344..7a7b9aa8f19a 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -660,7 +660,6 @@ void tcp_skb_entail(struct sock *sk, struct sk_buff *skb) tcb->seq = tcb->end_seq = tp->write_seq; tcb->tcp_flags = TCPHDR_ACK; - tcb->sacked = 0; __skb_header_release(skb); tcp_add_write_queue_tail(sk, skb); sk_wmem_queued_add(sk, skb->truesize); diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index 5664355b0d09..6867e5db3e35 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -394,7 +394,6 @@ static void tcp_init_nondata_skb(struct sk_buff *skb, u32 seq, u8 flags) skb->ip_summed = CHECKSUM_PARTIAL; TCP_SKB_CB(skb)->tcp_flags = flags; - TCP_SKB_CB(skb)->sacked = 0; tcp_skb_pcount_set(skb, 1); @@ -2139,9 +2138,6 @@ static int tso_fragment(struct sock *sk, struct sk_buff *skb, unsigned int len, TCP_SKB_CB(skb)->tcp_flags = flags & ~(TCPHDR_FIN | TCPHDR_PSH); TCP_SKB_CB(buff)->tcp_flags = flags; - /* This packet was never sent out yet, so no SACK bits. */ - TCP_SKB_CB(buff)->sacked = 0; - tcp_skb_fragment_eor(skb, buff); skb_split(skb, buff, len); @@ -2397,7 +2393,6 @@ static int tcp_mtu_probe(struct sock *sk) TCP_SKB_CB(nskb)->seq = TCP_SKB_CB(skb)->seq; TCP_SKB_CB(nskb)->end_seq = TCP_SKB_CB(skb)->seq + probe_size; TCP_SKB_CB(nskb)->tcp_flags = TCPHDR_ACK; - TCP_SKB_CB(nskb)->sacked = 0; tcp_insert_write_queue_before(nskb, skb, sk); tcp_highest_sack_replace(sk, skb, nskb); |