The 05/27/2020 11:59, Nikolay Aleksandrov wrote: > EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe > > On 26/05/2020 17:22, Horatiu Vultur wrote: > > This patch rework the MRP netlink interface. Before, each attribute > > represented a binary structure which made it hard to be extended. > > Therefore update the MRP netlink interface such that each existing > > attribute to be a nested attribute which contains the fields of the > > binary structures. > > In this way the MRP netlink interface can be extended without breaking > > the backwards compatibility. It is also using strict checking for > > attributes under the MRP top attribute. > > > > Signed-off-by: Horatiu Vultur <horatiu.vultur@xxxxxxxxxxxxx> > > --- > > include/uapi/linux/if_bridge.h | 64 ++++++++- > > net/bridge/br_mrp.c | 8 +- > > net/bridge/br_mrp_netlink.c | 248 ++++++++++++++++++++++++++++----- > > net/bridge/br_private_mrp.h | 2 +- > > 4 files changed, 272 insertions(+), 50 deletions(-) > > > > Hi Horatiu, > I think the functions below should be static. Also you could do better with the error > reporting. It seems extack is passed down, so you could return something meaningful for > each missing value. Hi Nik, Yes, they should be static, they should not be used outside of this file. I will create a new patch, where I will fix this and add more meaningful messages in case of a missing value. > > net/bridge/br_mrp_netlink.c:27:5: warning: no previous prototype for ‘br_mrp_instance_parse’ [-Wmissing-prototypes] > 27 | int br_mrp_instance_parse(struct net_bridge *br, struct nlattr *attr, > | ^~~~~~~~~~~~~~~~~~~~~ > net/bridge/br_mrp_netlink.c:64:5: warning: no previous prototype for ‘br_mrp_port_state_parse’ [-Wmissing-prototypes] > 64 | int br_mrp_port_state_parse(struct net_bridge_port *p, struct nlattr *attr, > | ^~~~~~~~~~~~~~~~~~~~~~~ > net/bridge/br_mrp_netlink.c:90:5: warning: no previous prototype for ‘br_mrp_port_role_parse’ [-Wmissing-prototypes] > 90 | int br_mrp_port_role_parse(struct net_bridge_port *p, struct nlattr *attr, > | ^~~~~~~~~~~~~~~~~~~~~~ > net/bridge/br_mrp_netlink.c:117:5: warning: no previous prototype for ‘br_mrp_ring_state_parse’ [-Wmissing-prototypes] > 117 | int br_mrp_ring_state_parse(struct net_bridge *br, struct nlattr *attr, > | ^~~~~~~~~~~~~~~~~~~~~~~ > net/bridge/br_mrp_netlink.c:148:5: warning: no previous prototype for ‘br_mrp_ring_role_parse’ [-Wmissing-prototypes] > 148 | int br_mrp_ring_role_parse(struct net_bridge *br, struct nlattr *attr, > | ^~~~~~~~~~~~~~~~~~~~~~ > net/bridge/br_mrp_netlink.c:181:5: warning: no previous prototype for ‘br_mrp_start_test_parse’ [-Wmissing-prototypes] > 181 | int br_mrp_start_test_parse(struct net_bridge *br, struct nlattr *attr, > | ^~~~~~~~~~~~~~~~~~~~~~~ > > > Cheers, > Nik > > > diff --git a/include/uapi/linux/if_bridge.h b/include/uapi/linux/if_bridge.h > > index bd8c95488f161..5a43eb86c93bf 100644 > > --- a/include/uapi/linux/if_bridge.h > > +++ b/include/uapi/linux/if_bridge.h > > @@ -169,17 +169,69 @@ enum { > > __IFLA_BRIDGE_MRP_MAX, > > }; > > > > +#define IFLA_BRIDGE_MRP_MAX (__IFLA_BRIDGE_MRP_MAX - 1) > > + > > +enum { > > + IFLA_BRIDGE_MRP_INSTANCE_UNSPEC, > > + IFLA_BRIDGE_MRP_INSTANCE_RING_ID, > > + IFLA_BRIDGE_MRP_INSTANCE_P_IFINDEX, > > + IFLA_BRIDGE_MRP_INSTANCE_S_IFINDEX, > > + __IFLA_BRIDGE_MRP_INSTANCE_MAX, > > +}; > > + > > +#define IFLA_BRIDGE_MRP_INSTANCE_MAX (__IFLA_BRIDGE_MRP_INSTANCE_MAX - 1) > > + > > +enum { > > + IFLA_BRIDGE_MRP_PORT_STATE_UNSPEC, > > + IFLA_BRIDGE_MRP_PORT_STATE_STATE, > > + __IFLA_BRIDGE_MRP_PORT_STATE_MAX, > > +}; > > + > > +#define IFLA_BRIDGE_MRP_PORT_STATE_MAX (__IFLA_BRIDGE_MRP_PORT_STATE_MAX - 1) > > + > > +enum { > > + IFLA_BRIDGE_MRP_PORT_ROLE_UNSPEC, > > + IFLA_BRIDGE_MRP_PORT_ROLE_ROLE, > > + __IFLA_BRIDGE_MRP_PORT_ROLE_MAX, > > +}; > > + > > +#define IFLA_BRIDGE_MRP_PORT_ROLE_MAX (__IFLA_BRIDGE_MRP_PORT_ROLE_MAX - 1) > > + > > +enum { > > + IFLA_BRIDGE_MRP_RING_STATE_UNSPEC, > > + IFLA_BRIDGE_MRP_RING_STATE_RING_ID, > > + IFLA_BRIDGE_MRP_RING_STATE_STATE, > > + __IFLA_BRIDGE_MRP_RING_STATE_MAX, > > +}; > > + > > +#define IFLA_BRIDGE_MRP_RING_STATE_MAX (__IFLA_BRIDGE_MRP_RING_STATE_MAX - 1) > > + > > +enum { > > + IFLA_BRIDGE_MRP_RING_ROLE_UNSPEC, > > + IFLA_BRIDGE_MRP_RING_ROLE_RING_ID, > > + IFLA_BRIDGE_MRP_RING_ROLE_ROLE, > > + __IFLA_BRIDGE_MRP_RING_ROLE_MAX, > > +}; > > + > > +#define IFLA_BRIDGE_MRP_RING_ROLE_MAX (__IFLA_BRIDGE_MRP_RING_ROLE_MAX - 1) > > + > > +enum { > > + IFLA_BRIDGE_MRP_START_TEST_UNSPEC, > > + IFLA_BRIDGE_MRP_START_TEST_RING_ID, > > + IFLA_BRIDGE_MRP_START_TEST_INTERVAL, > > + IFLA_BRIDGE_MRP_START_TEST_MAX_MISS, > > + IFLA_BRIDGE_MRP_START_TEST_PERIOD, > > + __IFLA_BRIDGE_MRP_START_TEST_MAX, > > +}; > > + > > +#define IFLA_BRIDGE_MRP_START_TEST_MAX (__IFLA_BRIDGE_MRP_START_TEST_MAX - 1) > > + > > struct br_mrp_instance { > > __u32 ring_id; > > __u32 p_ifindex; > > __u32 s_ifindex; > > }; > > > > -struct br_mrp_port_role { > > - __u32 ring_id; > > - __u32 role; > > -}; > > - > > struct br_mrp_ring_state { > > __u32 ring_id; > > __u32 ring_state; > > @@ -197,8 +249,6 @@ struct br_mrp_start_test { > > __u32 period; > > }; > > > > -#define IFLA_BRIDGE_MRP_MAX (__IFLA_BRIDGE_MRP_MAX - 1) > > - > > struct bridge_stp_xstats { > > __u64 transition_blk; > > __u64 transition_fwd; > > diff --git a/net/bridge/br_mrp.c b/net/bridge/br_mrp.c > > index 528d767eb026f..8ea59504ef47a 100644 > > --- a/net/bridge/br_mrp.c > > +++ b/net/bridge/br_mrp.c > > @@ -376,24 +376,24 @@ int br_mrp_set_port_state(struct net_bridge_port *p, > > * note: already called with rtnl_lock > > */ > > int br_mrp_set_port_role(struct net_bridge_port *p, > > - struct br_mrp_port_role *role) > > + enum br_mrp_port_role_type role) > > { > > struct br_mrp *mrp; > > > > if (!p || !(p->flags & BR_MRP_AWARE)) > > return -EINVAL; > > > > - mrp = br_mrp_find_id(p->br, role->ring_id); > > + mrp = br_mrp_find_port(p->br, p); > > > > if (!mrp) > > return -EINVAL; > > > > - if (role->role == BR_MRP_PORT_ROLE_PRIMARY) > > + if (role == BR_MRP_PORT_ROLE_PRIMARY) > > rcu_assign_pointer(mrp->p_port, p); > > else > > rcu_assign_pointer(mrp->s_port, p); > > > > - br_mrp_port_switchdev_set_role(p, role->role); > > + br_mrp_port_switchdev_set_role(p, role); > > > > return 0; > > } > > diff --git a/net/bridge/br_mrp_netlink.c b/net/bridge/br_mrp_netlink.c > > index 4a08a99519b04..cfad5d1cff050 100644 > > --- a/net/bridge/br_mrp_netlink.c > > +++ b/net/bridge/br_mrp_netlink.c > > @@ -8,19 +8,204 @@ > > > > static const struct nla_policy br_mrp_policy[IFLA_BRIDGE_MRP_MAX + 1] = { > > [IFLA_BRIDGE_MRP_UNSPEC] = { .type = NLA_REJECT }, > > - [IFLA_BRIDGE_MRP_INSTANCE] = { .type = NLA_EXACT_LEN, > > - .len = sizeof(struct br_mrp_instance)}, > > - [IFLA_BRIDGE_MRP_PORT_STATE] = { .type = NLA_U32 }, > > - [IFLA_BRIDGE_MRP_PORT_ROLE] = { .type = NLA_EXACT_LEN, > > - .len = sizeof(struct br_mrp_port_role)}, > > - [IFLA_BRIDGE_MRP_RING_STATE] = { .type = NLA_EXACT_LEN, > > - .len = sizeof(struct br_mrp_ring_state)}, > > - [IFLA_BRIDGE_MRP_RING_ROLE] = { .type = NLA_EXACT_LEN, > > - .len = sizeof(struct br_mrp_ring_role)}, > > - [IFLA_BRIDGE_MRP_START_TEST] = { .type = NLA_EXACT_LEN, > > - .len = sizeof(struct br_mrp_start_test)}, > > + [IFLA_BRIDGE_MRP_INSTANCE] = { .type = NLA_NESTED }, > > + [IFLA_BRIDGE_MRP_PORT_STATE] = { .type = NLA_NESTED }, > > + [IFLA_BRIDGE_MRP_PORT_ROLE] = { .type = NLA_NESTED }, > > + [IFLA_BRIDGE_MRP_RING_STATE] = { .type = NLA_NESTED }, > > + [IFLA_BRIDGE_MRP_RING_ROLE] = { .type = NLA_NESTED }, > > + [IFLA_BRIDGE_MRP_START_TEST] = { .type = NLA_NESTED }, > > }; > > > > +static const struct nla_policy > > +br_mrp_instance_policy[IFLA_BRIDGE_MRP_INSTANCE_MAX + 1] = { > > + [IFLA_BRIDGE_MRP_INSTANCE_UNSPEC] = { .type = NLA_REJECT }, > > + [IFLA_BRIDGE_MRP_INSTANCE_RING_ID] = { .type = NLA_U32 }, > > + [IFLA_BRIDGE_MRP_INSTANCE_P_IFINDEX] = { .type = NLA_U32 }, > > + [IFLA_BRIDGE_MRP_INSTANCE_S_IFINDEX] = { .type = NLA_U32 }, > > +}; > > + > > +int br_mrp_instance_parse(struct net_bridge *br, struct nlattr *attr, > > + int cmd, struct netlink_ext_ack *extack) > > +{ > > + struct nlattr *tb[IFLA_BRIDGE_MRP_INSTANCE_MAX + 1]; > > + struct br_mrp_instance inst; > > + int err; > > + > > + err = nla_parse_nested(tb, IFLA_BRIDGE_MRP_INSTANCE_MAX, attr, > > + br_mrp_instance_policy, extack); > > + if (err) > > + return err; > > + > > + if (!tb[IFLA_BRIDGE_MRP_INSTANCE_RING_ID] || > > + !tb[IFLA_BRIDGE_MRP_INSTANCE_P_IFINDEX] || > > + !tb[IFLA_BRIDGE_MRP_INSTANCE_S_IFINDEX]) > > + return -EINVAL; > > + > > + memset(&inst, 0, sizeof(inst)); > > + > > + inst.ring_id = nla_get_u32(tb[IFLA_BRIDGE_MRP_INSTANCE_RING_ID]); > > + inst.p_ifindex = nla_get_u32(tb[IFLA_BRIDGE_MRP_INSTANCE_P_IFINDEX]); > > + inst.s_ifindex = nla_get_u32(tb[IFLA_BRIDGE_MRP_INSTANCE_S_IFINDEX]); > > + > > + if (cmd == RTM_SETLINK) > > + return br_mrp_add(br, &inst); > > + else > > + return br_mrp_del(br, &inst); > > + > > + return 0; > > +} > > + > > +static const struct nla_policy > > +br_mrp_port_state_policy[IFLA_BRIDGE_MRP_PORT_STATE_MAX + 1] = { > > + [IFLA_BRIDGE_MRP_PORT_STATE_UNSPEC] = { .type = NLA_REJECT }, > > + [IFLA_BRIDGE_MRP_PORT_STATE_STATE] = { .type = NLA_U32 }, > > +}; > > + > > +int br_mrp_port_state_parse(struct net_bridge_port *p, struct nlattr *attr, > > + struct netlink_ext_ack *extack) > > +{ > > + struct nlattr *tb[IFLA_BRIDGE_MRP_PORT_STATE_MAX + 1]; > > + enum br_mrp_port_state_type state; > > + int err; > > + > > + err = nla_parse_nested(tb, IFLA_BRIDGE_MRP_PORT_STATE_MAX, attr, > > + br_mrp_port_state_policy, extack); > > + if (err) > > + return err; > > + > > + if (!tb[IFLA_BRIDGE_MRP_PORT_STATE_STATE]) > > + return -EINVAL; > > + > > + state = nla_get_u32(tb[IFLA_BRIDGE_MRP_PORT_STATE_STATE]); > > + > > + return br_mrp_set_port_state(p, state); > > +} > > + > > +static const struct nla_policy > > +br_mrp_port_role_policy[IFLA_BRIDGE_MRP_PORT_ROLE_MAX + 1] = { > > + [IFLA_BRIDGE_MRP_PORT_ROLE_UNSPEC] = { .type = NLA_REJECT }, > > + [IFLA_BRIDGE_MRP_PORT_ROLE_ROLE] = { .type = NLA_U32 }, > > +}; > > + > > +int br_mrp_port_role_parse(struct net_bridge_port *p, struct nlattr *attr, > > + struct netlink_ext_ack *extack) > > +{ > > + struct nlattr *tb[IFLA_BRIDGE_MRP_PORT_ROLE_MAX + 1]; > > + enum br_mrp_port_role_type role; > > + int err; > > + > > + err = nla_parse_nested(tb, IFLA_BRIDGE_MRP_PORT_ROLE_MAX, attr, > > + br_mrp_port_role_policy, extack); > > + if (err) > > + return err; > > + > > + if (!tb[IFLA_BRIDGE_MRP_PORT_ROLE_ROLE]) > > + return -EINVAL; > > + > > + role = nla_get_u32(tb[IFLA_BRIDGE_MRP_PORT_ROLE_ROLE]); > > + > > + return br_mrp_set_port_role(p, role); > > +} > > + > > +static const struct nla_policy > > +br_mrp_ring_state_policy[IFLA_BRIDGE_MRP_RING_STATE_MAX + 1] = { > > + [IFLA_BRIDGE_MRP_RING_STATE_UNSPEC] = { .type = NLA_REJECT }, > > + [IFLA_BRIDGE_MRP_RING_STATE_RING_ID] = { .type = NLA_U32 }, > > + [IFLA_BRIDGE_MRP_RING_STATE_STATE] = { .type = NLA_U32 }, > > +}; > > + > > +int br_mrp_ring_state_parse(struct net_bridge *br, struct nlattr *attr, > > + struct netlink_ext_ack *extack) > > +{ > > + struct nlattr *tb[IFLA_BRIDGE_MRP_RING_STATE_MAX + 1]; > > + struct br_mrp_ring_state state; > > + int err; > > + > > + err = nla_parse_nested(tb, IFLA_BRIDGE_MRP_RING_STATE_MAX, attr, > > + br_mrp_ring_state_policy, extack); > > + if (err) > > + return err; > > + > > + if (!tb[IFLA_BRIDGE_MRP_RING_STATE_RING_ID] || > > + !tb[IFLA_BRIDGE_MRP_RING_STATE_STATE]) > > + return -EINVAL; > > + > > + memset(&state, 0x0, sizeof(state)); > > + > > + state.ring_id = nla_get_u32(tb[IFLA_BRIDGE_MRP_RING_STATE_RING_ID]); > > + state.ring_state = nla_get_u32(tb[IFLA_BRIDGE_MRP_RING_STATE_STATE]); > > + > > + return br_mrp_set_ring_state(br, &state); > > +} > > + > > +static const struct nla_policy > > +br_mrp_ring_role_policy[IFLA_BRIDGE_MRP_RING_ROLE_MAX + 1] = { > > + [IFLA_BRIDGE_MRP_RING_ROLE_UNSPEC] = { .type = NLA_REJECT }, > > + [IFLA_BRIDGE_MRP_RING_ROLE_RING_ID] = { .type = NLA_U32 }, > > + [IFLA_BRIDGE_MRP_RING_ROLE_ROLE] = { .type = NLA_U32 }, > > +}; > > + > > +int br_mrp_ring_role_parse(struct net_bridge *br, struct nlattr *attr, > > + struct netlink_ext_ack *extack) > > +{ > > + struct nlattr *tb[IFLA_BRIDGE_MRP_RING_ROLE_MAX + 1]; > > + struct br_mrp_ring_role role; > > + int err; > > + > > + err = nla_parse_nested(tb, IFLA_BRIDGE_MRP_RING_ROLE_MAX, attr, > > + br_mrp_ring_role_policy, extack); > > + if (err) > > + return err; > > + > > + if (!tb[IFLA_BRIDGE_MRP_RING_ROLE_RING_ID] || > > + !tb[IFLA_BRIDGE_MRP_RING_ROLE_ROLE]) > > + return -EINVAL; > > + > > + memset(&role, 0x0, sizeof(role)); > > + > > + role.ring_id = nla_get_u32(tb[IFLA_BRIDGE_MRP_RING_ROLE_RING_ID]); > > + role.ring_role = nla_get_u32(tb[IFLA_BRIDGE_MRP_RING_ROLE_ROLE]); > > + > > + return br_mrp_set_ring_role(br, &role); > > +} > > + > > +static const struct nla_policy > > +br_mrp_start_test_policy[IFLA_BRIDGE_MRP_START_TEST_MAX + 1] = { > > + [IFLA_BRIDGE_MRP_START_TEST_UNSPEC] = { .type = NLA_REJECT }, > > + [IFLA_BRIDGE_MRP_START_TEST_RING_ID] = { .type = NLA_U32 }, > > + [IFLA_BRIDGE_MRP_START_TEST_INTERVAL] = { .type = NLA_U32 }, > > + [IFLA_BRIDGE_MRP_START_TEST_MAX_MISS] = { .type = NLA_U32 }, > > + [IFLA_BRIDGE_MRP_START_TEST_PERIOD] = { .type = NLA_U32 }, > > +}; > > + > > +int br_mrp_start_test_parse(struct net_bridge *br, struct nlattr *attr, > > + struct netlink_ext_ack *extack) > > +{ > > + struct nlattr *tb[IFLA_BRIDGE_MRP_START_TEST_MAX + 1]; > > + struct br_mrp_start_test test; > > + int err; > > + > > + err = nla_parse_nested(tb, IFLA_BRIDGE_MRP_START_TEST_MAX, attr, > > + br_mrp_start_test_policy, extack); > > + if (err) > > + return err; > > + > > + if (!tb[IFLA_BRIDGE_MRP_START_TEST_RING_ID] || > > + !tb[IFLA_BRIDGE_MRP_START_TEST_INTERVAL] || > > + !tb[IFLA_BRIDGE_MRP_START_TEST_MAX_MISS] || > > + !tb[IFLA_BRIDGE_MRP_START_TEST_PERIOD]) > > + return -EINVAL; > > + > > + memset(&test, 0x0, sizeof(test)); > > + > > + test.ring_id = nla_get_u32(tb[IFLA_BRIDGE_MRP_START_TEST_RING_ID]); > > + test.interval = nla_get_u32(tb[IFLA_BRIDGE_MRP_START_TEST_INTERVAL]); > > + test.max_miss = nla_get_u32(tb[IFLA_BRIDGE_MRP_START_TEST_MAX_MISS]); > > + test.period = nla_get_u32(tb[IFLA_BRIDGE_MRP_START_TEST_PERIOD]); > > + > > + return br_mrp_start_test(br, &test); > > +} > > + > > int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p, > > struct nlattr *attr, int cmd, struct netlink_ext_ack *extack) > > { > > @@ -44,58 +229,45 @@ int br_mrp_parse(struct net_bridge *br, struct net_bridge_port *p, > > return err; > > > > if (tb[IFLA_BRIDGE_MRP_INSTANCE]) { > > - struct br_mrp_instance *instance = > > - nla_data(tb[IFLA_BRIDGE_MRP_INSTANCE]); > > - > > - if (cmd == RTM_SETLINK) > > - err = br_mrp_add(br, instance); > > - else > > - err = br_mrp_del(br, instance); > > + err = br_mrp_instance_parse(br, tb[IFLA_BRIDGE_MRP_INSTANCE], > > + cmd, extack); > > if (err) > > return err; > > } > > > > if (tb[IFLA_BRIDGE_MRP_PORT_STATE]) { > > - enum br_mrp_port_state_type state = > > - nla_get_u32(tb[IFLA_BRIDGE_MRP_PORT_STATE]); > > - > > - err = br_mrp_set_port_state(p, state); > > + err = br_mrp_port_state_parse(p, tb[IFLA_BRIDGE_MRP_PORT_STATE], > > + extack); > > if (err) > > return err; > > } > > > > if (tb[IFLA_BRIDGE_MRP_PORT_ROLE]) { > > - struct br_mrp_port_role *role = > > - nla_data(tb[IFLA_BRIDGE_MRP_PORT_ROLE]); > > - > > - err = br_mrp_set_port_role(p, role); > > + err = br_mrp_port_role_parse(p, tb[IFLA_BRIDGE_MRP_PORT_ROLE], > > + extack); > > if (err) > > return err; > > } > > > > if (tb[IFLA_BRIDGE_MRP_RING_STATE]) { > > - struct br_mrp_ring_state *state = > > - nla_data(tb[IFLA_BRIDGE_MRP_RING_STATE]); > > - > > - err = br_mrp_set_ring_state(br, state); > > + err = br_mrp_ring_state_parse(br, > > + tb[IFLA_BRIDGE_MRP_RING_STATE], > > + extack); > > if (err) > > return err; > > } > > > > if (tb[IFLA_BRIDGE_MRP_RING_ROLE]) { > > - struct br_mrp_ring_role *role = > > - nla_data(tb[IFLA_BRIDGE_MRP_RING_ROLE]); > > - > > - err = br_mrp_set_ring_role(br, role); > > + err = br_mrp_ring_role_parse(br, tb[IFLA_BRIDGE_MRP_RING_ROLE], > > + extack); > > if (err) > > return err; > > } > > > > if (tb[IFLA_BRIDGE_MRP_START_TEST]) { > > - struct br_mrp_start_test *test = > > - nla_data(tb[IFLA_BRIDGE_MRP_START_TEST]); > > - > > - err = br_mrp_start_test(br, test); > > + err = br_mrp_start_test_parse(br, > > + tb[IFLA_BRIDGE_MRP_START_TEST], > > + extack); > > if (err) > > return err; > > } > > diff --git a/net/bridge/br_private_mrp.h b/net/bridge/br_private_mrp.h > > index 2921a4b59f8e7..a0f53cc3ab85c 100644 > > --- a/net/bridge/br_private_mrp.h > > +++ b/net/bridge/br_private_mrp.h > > @@ -37,7 +37,7 @@ int br_mrp_del(struct net_bridge *br, struct br_mrp_instance *instance); > > int br_mrp_set_port_state(struct net_bridge_port *p, > > enum br_mrp_port_state_type state); > > int br_mrp_set_port_role(struct net_bridge_port *p, > > - struct br_mrp_port_role *role); > > + enum br_mrp_port_role_type role); > > int br_mrp_set_ring_state(struct net_bridge *br, > > struct br_mrp_ring_state *state); > > int br_mrp_set_ring_role(struct net_bridge *br, struct br_mrp_ring_role *role); > > > -- /Horatiu