tree 7ea30ec79213588b734c1d1e5bcf338244f8f798
parent 1bff1e43a30e2f7500a49d47fd26a425643a6a37
author Paolo Abeni <pabeni@redhat.com> 1629847574 -0700
committer David S. Miller <davem@davemloft.net> 1629885754 +0100

mptcp: shrink mptcp_out_options struct

After the previous patch we can alias with a union several
fields in mptcp_out_options. Such struct is stack allocated and
memset() for each plain TCP out packet. Every saved byted counts.

Before:
pahole -EC mptcp_out_options
 # ...
/* size: 136, cachelines: 3, members: 17 */

After:
pahole -EC mptcp_out_options
 # ...
/* size: 56, cachelines: 1, members: 9 */

Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>