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sctp: call sk_setup_caps in sctp_packet_transmit instead

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sk_setup_caps() was originally called in Commit 90017accff ("sctp:
Add GSO support"), as:

  "We have to refresh this in case we are xmiting to more than one
   transport at a time"

This actually happens in the loop of sctp_outq_flush_transports(),
and it shouldn't be tied to gso, so move it out of gso part and
before sctp_packet_pack().

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Xin Long 2020-10-29 15:05:05 +08:00 committed by Jakub Kicinski
parent f1bfe8b541
commit bcd623d8e9
1 changed files with 7 additions and 6 deletions
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13
net/sctp/output.c
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@ -508,12 +508,6 @@ merge:
sizeof(struct inet6_skb_parm)));
skb_shinfo(head)->gso_segs = pkt_count;
skb_shinfo(head)->gso_size = GSO_BY_FRAGS;
rcu_read_lock();
if (skb_dst(head) != tp->dst) {
dst_hold(tp->dst);
sk_setup_caps(sk, tp->dst);
}
rcu_read_unlock();
goto chksum;
}
@ -593,6 +587,13 @@ int sctp_packet_transmit(struct sctp_packet *packet, gfp_t gfp)
}
skb_dst_set(head, dst);
rcu_read_lock();
if (__sk_dst_get(sk) != tp->dst) {
dst_hold(tp->dst);
sk_setup_caps(sk, tp->dst);
}
rcu_read_unlock();
/* pack up chunks */
pkt_count = sctp_packet_pack(packet, head, gso, gfp);
if (!pkt_count) {