summaryrefslogtreecommitdiff
path: root/net/sctp
diff options
context:
space:
mode:
authorEric Dumazet <edumazet@google.com>2021-11-19 18:43:31 +0300
committerDavid S. Miller <davem@davemloft.net>2021-11-22 15:49:42 +0300
commit4b66d2161b8125b6caa6971815e85631cf3cf36f (patch)
tree10eeca9981b607abc9fe4801577a1434826ddfa6 /net/sctp
parent8e2a2f90511aec3e076ecfac6de3bd96737f2282 (diff)
downloadlinux-4b66d2161b8125b6caa6971815e85631cf3cf36f.tar.xz
net: annotate accesses to dev->gso_max_size
dev->gso_max_size is written under RTNL protection, or when the device is not yet visible, but is read locklessly. Add the READ_ONCE()/WRITE_ONCE() pairs, and use netif_set_gso_max_size() where we can to better document what is going on. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sctp')
-rw-r--r--net/sctp/output.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/sctp/output.c b/net/sctp/output.c
index cdfdbd353c67..72fe6669c50d 100644
--- a/net/sctp/output.c
+++ b/net/sctp/output.c
@@ -134,7 +134,7 @@ void sctp_packet_config(struct sctp_packet *packet, __u32 vtag,
dst_hold(tp->dst);
sk_setup_caps(sk, tp->dst);
}
- packet->max_size = sk_can_gso(sk) ? tp->dst->dev->gso_max_size
+ packet->max_size = sk_can_gso(sk) ? READ_ONCE(tp->dst->dev->gso_max_size)
: asoc->pathmtu;
rcu_read_unlock();
}