sctp: define the member stream as an object instead of pointer in asoc

As Marcelo's suggestion, stream is a fixed size member of asoc and would
not grow with more streams. To avoid an allocation for it, this patch is
to define it as an object instead of pointer and update the places using
it, also create sctp_stream_update() called in sctp_assoc_update() to
migrate the stream info from one stream to another.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 2 deletions

diff --git a/net/sctp/proc.c b/net/sctp/proc.c
index a0b29d43627f..5a27d0f03df5 100644
--- a/net/sctp/proc.c
+++ b/net/sctp/proc.c
@@ -361,8 +361,8 @@ static int sctp_assocs_seq_show(struct seq_file *seq, void *v)
         sctp_seq_dump_remote_addrs(seq, assoc);
         seq_printf(seq, "\t%8lu %5d %5d %4d %4d %4d %8d "
                    "%8d %8d %8d %8d",
-                assoc->hbinterval, assoc->stream->incnt,
-                assoc->stream->outcnt, assoc->max_retrans,
+                assoc->hbinterval, assoc->stream.incnt,
+                assoc->stream.outcnt, assoc->max_retrans,
                 assoc->init_retries, assoc->shutdown_retries,
                 assoc->rtx_data_chunks,
                 atomic_read(&sk->sk_wmem_alloc),