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| author | Eric Dumazet <edumazet@google.com> | 2021-11-19 07:43:31 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-11-22 12:49:42 +0000 |
| commit | 4b66d2161b8125b6caa6971815e85631cf3cf36f (patch) | |
| tree | 10eeca9981b607abc9fe4801577a1434826ddfa6 /net/sctp | |
| parent | 8e2a2f90511aec3e076ecfac6de3bd96737f2282 (diff) | |
| download | linux-stable-4b66d2161b8125b6caa6971815e85631cf3cf36f.tar.gz linux-stable-4b66d2161b8125b6caa6971815e85631cf3cf36f.tar.bz2 linux-stable-4b66d2161b8125b6caa6971815e85631cf3cf36f.zip | |
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.c | 2 |
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(); } |