tree 4d113bf0c79a697420a1463d6fe1798ad6f4e0d9
parent c469012729bda6515779590d9588d3e36fdf449d
author Xin Long <lucien.xin@gmail.com> 1521025530 +0800
committer David S. Miller <davem@davemloft.net> 1521049707 -0400

sctp: add refcnt support for sh_key

With refcnt support for sh_key, chunks auth sh_keys can be decided
before enqueuing it. Changing the active key later will not affect
the chunks already enqueued.

Furthermore, this is necessary when adding the support for authinfo
for sendmsg in next patch.

Note that struct sctp_chunk can't be grown due to that performance
drop issue on slow cpu, so it just reuses head_skb memory for shkey
in sctp_chunk.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>