Mon, Jul 08, 2019 at 06:06:12PM CEST, pablo@xxxxxxxxxxxxx wrote: >This patch adds a function to check if flow block callback is already in >use. Call this new function from flow_block_cb_setup_simple() and from >drivers. > >Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx> >--- >v3: formerly known as "net: flow_offload: don't allow subsystem to reuse blocks" > add flow_block_cb_is_busy() helper. Call it per driver to make it easier > to remove this whenever the first driver client support for multiple > subsystem offloads. > > drivers/net/ethernet/mellanox/mlx5/core/en_rep.c | 4 ++++ > drivers/net/ethernet/mellanox/mlxsw/spectrum.c | 4 ++++ > drivers/net/ethernet/mscc/ocelot_tc.c | 3 +++ > drivers/net/ethernet/netronome/nfp/flower/offload.c | 4 ++++ > include/net/flow_offload.h | 3 +++ > net/core/flow_offload.c | 18 ++++++++++++++++++ > net/dsa/slave.c | 3 +++ > 7 files changed, 39 insertions(+) > >diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c >index 19133b9e121a..e303149053e4 100644 >--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c >+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c >@@ -721,6 +721,10 @@ mlx5e_rep_indr_setup_tc_block(struct net_device *netdev, > if (indr_priv) > return -EEXIST; > >+ if (flow_block_cb_is_busy(mlx5e_rep_indr_setup_block_cb, >+ indr_priv, &mlx5e_block_cb_list)) As I already asked for in another patch in this set, it would be really much much better to have some wrapping struct instead of plain list head here. [...]
