[nf,v5,0/4] flow_offload fixes

Hi,

The following patchset contains fixes for the flow_offload infrastructure:

1) Fix possible build breakage before patch 3/4. Both the flow_offload
   infrastructure and OVS define the flow_stats structure. Patch 3/4 in
   this batch indirectly pulls in the flow_stats definition from
   include/net/flow_offload.h into OVS, leading to structure redefinition
   compile-time errors.

2) Remove netns parameter from flow_block_cb_alloc(), this is not
   required as Jiri suggests. The flow_block_cb_is_busy() function uses
   the per-driver block list to check for used blocks which was the
   original intention for this parameter.

3) Rename tc_setup_cb_t to flow_setup_cb_t. This callback is not
   exclusive of tc anymore, this might confuse the reader as Jiri
   suggests, fix this semantic inconsistency.

   Add #include <linux/list.h> to include/net/netfilter/nf_tables_offload.h
   to avoid a compile break with CONFIG_HEADER_TEST=y.

4) Fix block sharing feature: Add flow_block structure and use it,
   update flow_block_cb_lookup() to use this flow_block object.

Please, apply, thank you.

Pablo Neira Ayuso (4):
  net: openvswitch: rename flow_stats to sw_flow_stats
  net: flow_offload: remove netns parameter from flow_block_cb_alloc()
  net: flow_offload: rename tc_setup_cb_t to flow_setup_cb_t
  net: flow_offload: add flow_block structure and use it

 drivers/net/ethernet/mellanox/mlx5/core/en_rep.c   |  5 ++--
 drivers/net/ethernet/mellanox/mlxsw/spectrum.c     | 15 ++++++-----
 drivers/net/ethernet/mscc/ocelot_flower.c          | 11 ++++----
 drivers/net/ethernet/mscc/ocelot_tc.c              |  6 ++---
 .../net/ethernet/netronome/nfp/flower/offload.c    | 11 ++++----
 include/net/flow_offload.h                         | 30 ++++++++++++++++------
 include/net/netfilter/nf_tables.h                  |  5 ++--
 include/net/pkt_cls.h                              |  5 ++--
 include/net/sch_generic.h                          |  8 +++---
 net/core/flow_offload.c                            | 22 ++++++++--------
 net/dsa/slave.c                                    |  6 ++---
 net/netfilter/nf_tables_api.c                      |  2 +-
 net/netfilter/nf_tables_offload.c                  |  5 ++--
 net/openvswitch/flow.c                             |  8 +++---
 net/openvswitch/flow.h                             |  4 +--
 net/openvswitch/flow_table.c                       |  8 +++---
 net/sched/cls_api.c                                | 12 ++++++---
 net/sched/cls_bpf.c                                |  2 +-
 net/sched/cls_flower.c                             |  2 +-
 net/sched/cls_matchall.c                           |  2 +-
 net/sched/cls_u32.c                                |  6 ++---
 21 files changed, 94 insertions(+), 81 deletions(-)

From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Fri, 19 Jul 2019 18:20:12 +0200

> The following patchset contains fixes for the flow_offload infrastructure:

Series applied, please fix the build failure reported by Jakub.