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authorEric Dumazet <edumazet@google.com>2018-02-19 11:56:52 -0800
committerDavid S. Miller <davem@davemloft.net>2018-02-21 14:24:14 -0500
commit98be9b12096fb46773b4a509d3822fd17c82218e (patch)
treefdee55dc628e78ddae4acbb7f1e97821aae779ae /net/ipv4/tcp_ipv4.c
parenttcp: remove dead code from tcp_set_skb_tso_segs() (diff)
downloadlinux-dev-98be9b12096fb46773b4a509d3822fd17c82218e.tar.xz
linux-dev-98be9b12096fb46773b4a509d3822fd17c82218e.zip
tcp: remove dead code after CHECKSUM_PARTIAL adoption
Since all skbs in write/rtx queues have CHECKSUM_PARTIAL, we can remove dead code. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
-rw-r--r--net/ipv4/tcp_ipv4.c13
1 files changed, 3 insertions, 10 deletions
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index f3e52bc98980..2c6aec2643e8 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -561,16 +561,9 @@ void __tcp_v4_send_check(struct sk_buff *skb, __be32 saddr, __be32 daddr)
{
struct tcphdr *th = tcp_hdr(skb);
- if (skb->ip_summed == CHECKSUM_PARTIAL) {
- th->check = ~tcp_v4_check(skb->len, saddr, daddr, 0);
- skb->csum_start = skb_transport_header(skb) - skb->head;
- skb->csum_offset = offsetof(struct tcphdr, check);
- } else {
- th->check = tcp_v4_check(skb->len, saddr, daddr,
- csum_partial(th,
- th->doff << 2,
- skb->csum));
- }
+ th->check = ~tcp_v4_check(skb->len, saddr, daddr, 0);
+ skb->csum_start = skb_transport_header(skb) - skb->head;
+ skb->csum_offset = offsetof(struct tcphdr, check);
}
/* This routine computes an IPv4 TCP checksum. */