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authorXin Long <lucien.xin@gmail.com>2020-10-29 15:05:05 +0800
committerJakub Kicinski <kuba@kernel.org>2020-10-30 15:24:25 -0700
commitbcd623d8e9fa5f82bbd8cd464dc418d24139157b (patch)
treeca32b6424a9444acfb2ef27e4b78b3bf6b8f7647 /net/sctp/output.c
parentf1bfe8b5415171b5e70c2a47d399c91bd7c2752e (diff)
sctp: call sk_setup_caps in sctp_packet_transmit instead
sk_setup_caps() was originally called in Commit 90017accff61 ("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>
Diffstat (limited to 'net/sctp/output.c')
-rw-r--r--net/sctp/output.c13
1 files changed, 7 insertions, 6 deletions
diff --git a/net/sctp/output.c b/net/sctp/output.c
index 1441eaf460bb..fb1650095326 100644
--- a/net/sctp/output.c
+++ b/net/sctp/output.c
@@ -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) {