tree 42d039b2efbd26699c9e2033d54a47d8e831eede
parent 8306b688f1a6621b9efe3b0d827e26750528b12a
author Tom Herbert <tom@herbertland.com> 1441124671 -0700
committer David S. Miller <davem@davemloft.net> 1441145183 -0700

flow_dissector: Add flag to stop parsing when an IPv6 flow label is seen

Add an input flag to flow dissector on rather dissection should be
stopped when a flow label is encountered. Presumably, the flow label
is derived from a sufficient hash of an inner transport packet so
further dissection is not needed (that is ports are not included in
the flow hash). Using the flow label instead of ports has the additional
benefit that packet fragments should hash to same value as non-fragments
for a flow (assuming that the same flow label is used).

We set this flag by default in for skb_get_hash.

Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>