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authorPaolo Abeni <pabeni@redhat.com>2021-08-24 16:26:13 -0700
committerDavid S. Miller <davem@davemloft.net>2021-08-25 11:02:34 +0100
commit1bff1e43a30e2f7500a49d47fd26a425643a6a37 (patch)
tree709380b8d0f05236e65cff9552b847647b150bee /include/net/mptcp.h
parentd484dc2b21a71642665159d2f7c33828e637ab91 (diff)
downloadlwn-1bff1e43a30e2f7500a49d47fd26a425643a6a37.tar.gz
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mptcp: optimize out option generation
Currently we have several protocol constraints on MPTCP options generation (e.g. MPC and MPJ subopt are mutually exclusive) and some additional ones required by our implementation (e.g. almost all ADD_ADDR variant are mutually exclusive with everything else). We can leverage the above to optimize the out option generation: we check DSS/MPC/MPJ presence in a mutually exclusive way, avoiding many unneeded conditionals in the common cases. Additionally extend the existing constraints on ADD_ADDR opt on all subvariants, so that it becomes fully mutually exclusive with the above and we can skip another conditional statement for the common case. This change is also needed by the next patch. 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>
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