diff options
| author | Willem de Bruijn <willemb@google.com> | 2018-07-06 10:12:58 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-07-07 10:58:49 +0900 |
| commit | 678ca42d688534adfc780b150abefaaac7c86687 (patch) | |
| tree | 134eafff1968ff2e3787b96c1b897501e3d2041d /net/ipv4 | |
| parent | 5fdaa88dfefa87ee1ea92750e99950dca182ea41 (diff) | |
| download | linux-678ca42d688534adfc780b150abefaaac7c86687.tar.bz2 | |
ip: remove tx_flags from ipcm_cookie and use same logic for v4 and v6
skb_shinfo(skb)->tx_flags is derived from sk->sk_tsflags, possibly
after modification by __sock_cmsg_send, by calling sock_tx_timestamp.
The IPv4 and IPv6 paths do this conversion differently. In IPv4, the
individual protocols that support tx timestamps call this function
and store the result in ipc.tx_flags. In IPv6, sock_tx_timestamp is
called in __ip6_append_data.
There is no need to store both tx_flags and ts_flags in the cookie
as one is derived from the other. Convert when setting up the cork
and remove the redundant field. This is similar to IPv6, only have
the conversion happen only once per datagram, in ip(6)_setup_cork.
Also change __ip6_append_data to match __ip_append_data. Only update
tskey if timestamping is enabled with OPT_ID. The SOCK_.. test is
redundant: only valid protocols can have non-zero cork->tx_flags.
After this change the IPv4 and IPv6 logic is the same.
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/ip_output.c | 3 | ||||
| -rw-r--r-- | net/ipv4/ping.c | 2 | ||||
| -rw-r--r-- | net/ipv4/raw.c | 2 | ||||
| -rw-r--r-- | net/ipv4/udp.c | 2 |
4 files changed, 2 insertions, 7 deletions
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c index 81d0e4a77ec5..e14c774cc092 100644 --- a/net/ipv4/ip_output.c +++ b/net/ipv4/ip_output.c @@ -1153,8 +1153,9 @@ static int ip_setup_cork(struct sock *sk, struct inet_cork *cork, cork->ttl = ipc->ttl; cork->tos = ipc->tos; cork->priority = ipc->priority; - cork->tx_flags = ipc->tx_flags; cork->transmit_time = ipc->sockc.transmit_time; + cork->tx_flags = 0; + sock_tx_timestamp(sk, ipc->sockc.tsflags, &cork->tx_flags); return 0; } diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c index 6f17fc8ebbdb..b54c964ad925 100644 --- a/net/ipv4/ping.c +++ b/net/ipv4/ping.c @@ -763,8 +763,6 @@ static int ping_v4_sendmsg(struct sock *sk, struct msghdr *msg, size_t len) rcu_read_unlock(); } - sock_tx_timestamp(sk, ipc.sockc.tsflags, &ipc.tx_flags); - saddr = ipc.addr; ipc.addr = faddr = daddr; diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c index cf142909389c..33df4d76db2d 100644 --- a/net/ipv4/raw.c +++ b/net/ipv4/raw.c @@ -665,8 +665,6 @@ back_from_confirm: &rt, msg->msg_flags, &ipc.sockc); else { - sock_tx_timestamp(sk, ipc.sockc.tsflags, &ipc.tx_flags); - if (!ipc.addr) ipc.addr = fl4.daddr; lock_sock(sk); diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index 87f3a0b77864..060e841dde40 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -1020,8 +1020,6 @@ int udp_sendmsg(struct sock *sk, struct msghdr *msg, size_t len) saddr = ipc.addr; ipc.addr = faddr = daddr; - sock_tx_timestamp(sk, ipc.sockc.tsflags, &ipc.tx_flags); - if (ipc.opt && ipc.opt->opt.srr) { if (!daddr) { err = -EINVAL; |