diff options
| -rw-r--r-- | net/core/devlink.c | 64 |
1 files changed, 33 insertions, 31 deletions
diff --git a/net/core/devlink.c b/net/core/devlink.c index ee828e4b1007..c39496311b71 100644 --- a/net/core/devlink.c +++ b/net/core/devlink.c @@ -713,42 +713,48 @@ static int devlink_nl_port_attrs_put(struct sk_buff *msg, } static int +devlink_port_fn_hw_addr_fill(struct devlink *devlink, const struct devlink_ops *ops, + struct devlink_port *port, struct sk_buff *msg, + struct netlink_ext_ack *extack, bool *msg_updated) +{ + u8 hw_addr[MAX_ADDR_LEN]; + int hw_addr_len; + int err; + + if (!ops->port_function_hw_addr_get) + return 0; + + err = ops->port_function_hw_addr_get(devlink, port, hw_addr, &hw_addr_len, extack); + if (err) { + if (err == -EOPNOTSUPP) + return 0; + return err; + } + err = nla_put(msg, DEVLINK_PORT_FUNCTION_ATTR_HW_ADDR, hw_addr_len, hw_addr); + if (err) + return err; + *msg_updated = true; + return 0; +} + +static int devlink_nl_port_function_attrs_put(struct sk_buff *msg, struct devlink_port *port, struct netlink_ext_ack *extack) { struct devlink *devlink = port->devlink; const struct devlink_ops *ops; struct nlattr *function_attr; - bool empty_nest = true; - int err = 0; + bool msg_updated = false; + int err; function_attr = nla_nest_start_noflag(msg, DEVLINK_ATTR_PORT_FUNCTION); if (!function_attr) return -EMSGSIZE; ops = devlink->ops; - if (ops->port_function_hw_addr_get) { - int hw_addr_len; - u8 hw_addr[MAX_ADDR_LEN]; - - err = ops->port_function_hw_addr_get(devlink, port, hw_addr, &hw_addr_len, extack); - if (err == -EOPNOTSUPP) { - /* Port function attributes are optional for a port. If port doesn't - * support function attribute, returning -EOPNOTSUPP is not an error. - */ - err = 0; - goto out; - } else if (err) { - goto out; - } - err = nla_put(msg, DEVLINK_PORT_FUNCTION_ATTR_HW_ADDR, hw_addr_len, hw_addr); - if (err) - goto out; - empty_nest = false; - } - -out: - if (err || empty_nest) + err = devlink_port_fn_hw_addr_fill(devlink, ops, port, msg, + extack, &msg_updated); + if (err || !msg_updated) nla_nest_cancel(msg, function_attr); else nla_nest_end(msg, function_attr); @@ -986,7 +992,6 @@ devlink_port_function_hw_addr_set(struct devlink *devlink, struct devlink_port * const struct devlink_ops *ops; const u8 *hw_addr; int hw_addr_len; - int err; hw_addr = nla_data(attr); hw_addr_len = nla_len(attr); @@ -1011,12 +1016,7 @@ devlink_port_function_hw_addr_set(struct devlink *devlink, struct devlink_port * return -EOPNOTSUPP; } - err = ops->port_function_hw_addr_set(devlink, port, hw_addr, hw_addr_len, extack); - if (err) - return err; - - devlink_port_notify(port, DEVLINK_CMD_PORT_NEW); - return 0; + return ops->port_function_hw_addr_set(devlink, port, hw_addr, hw_addr_len, extack); } static int @@ -1037,6 +1037,8 @@ devlink_port_function_set(struct devlink *devlink, struct devlink_port *port, if (attr) err = devlink_port_function_hw_addr_set(devlink, port, attr, extack); + if (!err) + devlink_port_notify(port, DEVLINK_CMD_PORT_NEW); return err; } |