tree 198ff02e23f8606ff2a3bec51c7044ec408e19c4
parent c9f1d0389b962521af1e2b699c8ee5e299d77b85
author Patrick McHardy <kaber@trash.net> 1252046475 +0000
committer David S. Miller <davem@davemloft.net> 1252227972 -0700

net_sched: make cls_ops->tcf_chain() optional

Some qdiscs don't support attaching filters. Handle this centrally in
cls_api and return a proper errno code (EOPNOTSUPP) instead of EINVAL.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>