Re: [PATCH v4] net: kernel-doc compliant documentation for net_device

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Hello,

2014-07-30 6:57 GMT-07:00 Karoly Kemeny <karoly.kemeny@xxxxxxxxx>:
> Net_device is a vast and important structure, but it has no kernel-doc
> compliant documentation. This patch extracts the comments from the structure
> to clean it up, and let the scripts extract documentation from it. I know that
> the patch is big, but it's just reordering of comments into the appropriate
> form, and adding a few more, for the missing members.

The various changes you made the patch should be after the '---' line
such that it gets discarded while being applied.

The iterations of the patch are relevant when posted on the
mailing-list for review, but as soon as it gets applied, this history
is not relevant anymore since this is the first time this patch
appears in the tree.

>
> v2:
> Additional documentation added for some members (gflags,neigh_priv_len,
> queues_kset, uc_promisc, promiscuity, allmulti, _rx, _tx, watchdog_timer,
> rtnl_link_state, tstats, gso_max_size, gso_max_segs, num_tc, pm_qos_req).
> Cleaned up trailing whitespaces and blank lines.
> Fixed the beginning to indicate kernel-doc notation.
>
> v3:
> Fixed typos.
> Added documentation for npinfo and stats
>
> v4:
> Fixed further typos pointed out by Nikolay
>
> Signed-off-by: Karoly Kemeny <karoly.kemeny@xxxxxxxxx>
> ---
>  include/linux/netdevice.h | 381 ++++++++++++++++++++++++++++++----------------
>  1 file changed, 250 insertions(+), 131 deletions(-)
>
> diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
> index 66f9a04..4c35ade 100644
> --- a/include/linux/netdevice.h
> +++ b/include/linux/netdevice.h
> @@ -1229,42 +1229,228 @@ enum netdev_priv_flags {
>  #define IFF_LIVE_ADDR_CHANGE           IFF_LIVE_ADDR_CHANGE
>  #define IFF_MACVLAN                    IFF_MACVLAN
>
> -/*
> - *     The DEVICE structure.
> - *     Actually, this whole structure is a big mistake.  It mixes I/O
> - *     data with strictly "high-level" data, and it has to know about
> - *     almost every data structure used in the INET module.
> +/**
> + *     struct net_device - The DEVICE structure.
> + *             Actually, this whole structure is a big mistake.  It mixes I/O
> + *             data with strictly "high-level" data, and it has to know about
> + *             almost every data structure used in the INET module.
> + *
> + *     @name:  This is the first field of the "visible" part of this structure
> + *             (i.e. as seen by users in the "Space.c" file).  It is the name
> + *             of the interface.
> + *
> + *     @name_hlist:    Device name hash chain, please keep it close to name[]
> + *     @ifalias:       SNMP alias
> + *     @mem_end:       Shared memory end
> + *     @mem_start:     Shared memory start
> + *     @base_addr:     Device I/O address
> + *     @irq:           Device IRQ number
> + *
> + *     @state:         Generic network queuing layer state, see netdev_state_t
> + *     @dev_list:      The global list of network devices
> + *     @napi_list:     List entry, that is used for polling napi devices
> + *     @unreg_list:    List entry, that is used, when we are unregistering the
> + *                     device, see the function unregister_netdev
> + *     @close_list:    List entry, that is used, when we are closing the device
> + *
> + *     @adj_list:      Directly linked devices, like slaves for bonding
> + *     @all_adj_list:  All linked devices, *including* neighbours
> + *     @features:      Currently active device features
> + *     @hw_features:   User-changeable features
> + *
> + *     @wanted_features:       User-requested features
> + *     @vlan_features:         Mask of features inheritable by VLAN devices
> + *
> + *     @hw_enc_features:       Mask of features inherited by encapsulating devices
> + *                             This field indicates what encapsulation
> + *                             offloads the hardware is capable of doing,
> + *                             and drivers will need to set them appropriately.
> + *
> + *     @mpls_features: Mask of features inheritable by MPLS
> + *
> + *     @ifindex:       interface index
> + *     @iflink:        unique device identifier
> + *
> + *     @stats:         Statistics struct, which was left as a legacy, use
> + *                     rtnl_link_stats64 instead
> + *
> + *     @rx_dropped:    Dropped packets by core network,
> + *                     do not use this in drivers
> + *     @tx_dropped:    Dropped packets by core network,
> + *                     do not use this in drivers
> + *
> + *     @carrier_changes:       Stats to monitor carrier on<->off transitions
> + *
> + *     @wireless_handlers:     List of functions to handle Wireless Extensions,
> + *                             instead of ioctl,
> + *                             see <net/iw_handler.h> for details.
> + *     @wireless_data: Instance data managed by the core of wireless extensions
> + *
> + *     @netdev_ops:    Includes several pointers to callbacks,
> + *                     if one wants to override the ndo_*() functions
> + *     @ethtool_ops:   Management operations
> + *     @fwd_ops:       Management operations
> + *     @header_ops:    Includes callbacks for creating,parsing,rebuilding,etc
> + *                     of Layer 2 headers.
> + *
> + *     @flags:         Interface flags (a la BSD)
> + *     @priv_flags:    Like 'flags' but invisible to userspace,
> + *                     see if.h for the definitions
> + *     @gflags:        Global flags ( kept as legacy )
> + *     @padded:        How much padding added by alloc_netdev()
> + *     @operstate:     RFC2863 operstate
> + *     @link_mode:     Mapping policy to operstate
> + *     @if_port:       Selectable AUI, TP, ...
> + *     @dma:           DMA channel
> + *     @mtu:           Interface MTU value
> + *     @type:          Interface hardware type
> + *     @hard_header_len: Hardware header length
> + *
> + *     @needed_headroom: Extra headroom the hardware may need, but not in all
> + *                       cases can this be guaranteed
> + *     @needed_tailroom: Extra tailroom the hardware may need, but not in all
> + *                       cases can this be guaranteed. Some cases also use
> + *                       LL_MAX_HEADER instead to allocate the skb
> + *
> + *     interface address info:
> + *
> + *     @perm_addr:             Permanent hw address
> + *     @addr_assign_type:      Hw address assignment type
> + *     @addr_len:              Hardware address length
> + *     @neigh_priv_len;        Used in neigh_alloc(),
> + *                             initialized only in atm/clip.c
> + *     @dev_id:                Used to differentiate devices that share
> + *                             the same link layer address
> + *     @dev_port:              Used to differentiate devices that share
> + *                             the same function
> + *     @addr_list_lock:        XXX: need comments on this one
> + *     @uc:                    unicast mac addresses
> + *     @mc:                    multicast mac addresses
> + *     @dev_addrs:             list of device hw addresses
> + *     @queues_kset:           Group of all Kobjects in the Tx and RX queues
> + *     @uc_promisc:            Counter, that indicates, that promiscuous mode
> + *                             has been enabled due to the need to listen to
> + *                             additional unicast addresses in a device that
> + *                             does not implement ndo_set_rx_mode()
> + *     @promiscuity:           Number of times, the NIC is told to work in
> + *                             Promiscuous mode, if it becomes 0 the NIC will
> + *                             exit from working in Promiscuous mode
> + *     @allmulti:              Counter, enables or disables allmulticast mode
> + *
> + *     @vlan_info:     VLAN info
> + *     @dsa_ptr:       dsa specific data
> + *     @tipc_ptr:      TIPC specific data
> + *     @atalk_ptr:     AppleTalk link
> + *     @ip_ptr:        IPv4 specific data
> + *     @dn_ptr:        DECnet specific data
> + *     @ip6_ptr:       IPv6 specific data
> + *     @ax25_ptr:      AX.25 specific data
> + *     @ieee80211_ptr: IEEE 802.11 specific data, assign before registering
> + *
> + *     @last_rx:       Time of last Rx
> + *     @dev_addr:      Hw address (before bcast,
> + *                     because most packets are unicast)
> + *
> + *     @_rx:                   Array of RX queues
> + *     @num_rx_queues:         Number of RX queues
> + *                             allocated at register_netdev() time
> + *     @real_num_rx_queues:    Number of RX queues currently active in device
> + *
> + *     @rx_handler:            handler for received packets
> + *     @rx_handler_data:       XXX: need comments on this one
> + *     @ingress_queue:         XXX: need comments on this one
> + *     @broadcast:             hw bcast address
> + *
> + *     @_tx:                   Array of TX queues
> + *     @num_tx_queues:         Number of TX queues allocated at alloc_netdev_mq() time
> + *     @real_num_tx_queues:    Number of TX queues currently active in device
> + *     @qdisc:                 Root qdisc from userspace point of view
> + *     @tx_queue_len:          Max frames per queue allowed
> + *     @tx_global_lock:        XXX: need comments on this one
> + *
> + *     @xps_maps:      XXX: need comments on this one
> + *
> + *     @rx_cpu_rmap:   CPU reverse-mapping for RX completion interrupts,
> + *                     indexed by RX queue number. Assigned by driver.
> + *                     This must only be set if the ndo_rx_flow_steer
> + *                     operation is defined
> + *
> + *     @trans_start:           Time (in jiffies) of last Tx
> + *     @watchdog_timeo:        Represents the timeout that is used by
> + *                             the watchdog ( see dev_watchdog() )
> + *     @watchdog_timer:        List of timers
> + *
> + *     @pcpu_refcnt:           Number of references to this device
> + *     @todo_list:             Delayed register/unregister
> + *     @index_hlist:           Device index hash chain
> + *     @link_watch_list:       XXX: need comments on this one
> + *
> + *     @reg_state:             Register/unregister state machine
> + *     @dismantle:             Device is going to be freed
> + *     @rtnl_link_state:       This enum represents the phases of creating
> + *                             a new link
> + *
> + *     @destructor:            Called from unregister,
> + *                             can be used to call free_netdev
> + *     @npinfo:                XXX: need comments on this one
> + *     @nd_net:                Network namespace this network device is inside
> + *
> + *     @ml_priv:       Mid-layer private
> + *     @lstats:        Loopback statistics
> + *     @tstats:        Tunnel statistics
> + *     @dstats:        Dummy statistics
> + *     @vstats:        Virtual ethernet statistics
> + *
> + *     @garp_port:     GARP
> + *     @mrp_port:      MRP
> + *
> + *     @dev:           Class/net/name entry
> + *     @sysfs_groups:  Space for optional device, statistics and wireless
> + *                     sysfs groups
> + *
> + *     @sysfs_rx_queue_group:  Space for optional per-rx queue attributes
> + *     @rtnl_link_ops: Rtnl_link_ops
> + *
> + *     @gso_max_size:  Maximum size of generic segmentation offload
> + *     @gso_max_segs:  Maximum number of segments that can be passed to the
> + *                     NIC for GSO
> + *
> + *     @dcbnl_ops:     Data Center Bridging netlink ops
> + *     @num_tc:        Number of traffic classes in the net device
> + *     @tc_to_txq:     XXX: need comments on this one
> + *     @prio_tc_map    XXX: need comments on this one
> + *
> + *     @fcoe_ddp_xid:  Max exchange id for FCoE LRO by ddp
> + *
> + *     @priomap:       XXX: need comments on this one
> + *     @phydev:        Physical device may attach itself
> + *                     for hardware timestamping
> + *
> + *     @qdisc_tx_busylock:     XXX: need comments on this one
> + *
> + *     @group:         The group, that the device belongs to
> + *     @pm_qos_req:    Power Management QoS object
>   *
>   *     FIXME: cleanup struct net_device such that network protocol info
>   *     moves out.
>   */
>
>  struct net_device {
> -
> -       /*
> -        * This is the first field of the "visible" part of this structure
> -        * (i.e. as seen by users in the "Space.c" file).  It is the name
> -        * of the interface.
> -        */
>         char                    name[IFNAMSIZ];
> -
> -       /* device name hash chain, please keep it close to name[] */
>         struct hlist_node       name_hlist;
> -
> -       /* snmp alias */
>         char                    *ifalias;
> -
>         /*
>          *      I/O specific fields
>          *      FIXME: Merge these and struct ifmap into one
>          */
> -       unsigned long           mem_end;        /* shared mem end       */
> -       unsigned long           mem_start;      /* shared mem start     */
> -       unsigned long           base_addr;      /* device I/O address   */
> -       int                     irq;            /* device IRQ number    */
> +       unsigned long           mem_end;
> +       unsigned long           mem_start;
> +       unsigned long           base_addr;
> +       int                     irq;
>
>         /*
> -        *      Some hardware also needs these fields, but they are not
> +        *      Some hardware also needs these fields (state,dev_list,
> +        *      napi_list,unreg_list,close_list) but they are not
>          *      part of the usual set specified in Space.c.
>          */
>
> @@ -1275,106 +1461,74 @@ struct net_device {
>         struct list_head        unreg_list;
>         struct list_head        close_list;
>
> -       /* directly linked devices, like slaves for bonding */
>         struct {
>                 struct list_head upper;
>                 struct list_head lower;
>         } adj_list;
>
> -       /* all linked devices, *including* neighbours */
>         struct {
>                 struct list_head upper;
>                 struct list_head lower;
>         } all_adj_list;
>
> -
> -       /* currently active device features */
>         netdev_features_t       features;
> -       /* user-changeable features */
>         netdev_features_t       hw_features;
> -       /* user-requested features */
>         netdev_features_t       wanted_features;
> -       /* mask of features inheritable by VLAN devices */
>         netdev_features_t       vlan_features;
> -       /* mask of features inherited by encapsulating devices
> -        * This field indicates what encapsulation offloads
> -        * the hardware is capable of doing, and drivers will
> -        * need to set them appropriately.
> -        */
>         netdev_features_t       hw_enc_features;
> -       /* mask of fetures inheritable by MPLS */
>         netdev_features_t       mpls_features;
>
> -       /* Interface index. Unique device identifier    */
>         int                     ifindex;
>         int                     iflink;
>
>         struct net_device_stats stats;
>
> -       /* dropped packets by core network, Do not use this in drivers */
>         atomic_long_t           rx_dropped;
>         atomic_long_t           tx_dropped;
>
> -       /* Stats to monitor carrier on<->off transitions */
>         atomic_t                carrier_changes;
>
>  #ifdef CONFIG_WIRELESS_EXT
> -       /* List of functions to handle Wireless Extensions (instead of ioctl).
> -        * See <net/iw_handler.h> for details. Jean II */
>         const struct iw_handler_def *   wireless_handlers;
> -       /* Instance data managed by the core of Wireless Extensions. */
>         struct iw_public_data * wireless_data;
>  #endif
> -       /* Management operations */
>         const struct net_device_ops *netdev_ops;
>         const struct ethtool_ops *ethtool_ops;
>         const struct forwarding_accel_ops *fwd_ops;
>
> -       /* Hardware header description */
>         const struct header_ops *header_ops;
>
> -       unsigned int            flags;  /* interface flags (a la BSD)   */
> -       unsigned int            priv_flags; /* Like 'flags' but invisible to userspace.
> -                                            * See if.h for definitions. */
> +       unsigned int            flags;
> +       unsigned int            priv_flags;
> +
>         unsigned short          gflags;
> -       unsigned short          padded; /* How much padding added by alloc_netdev() */
> +       unsigned short          padded;
>
> -       unsigned char           operstate; /* RFC2863 operstate */
> -       unsigned char           link_mode; /* mapping policy to operstate */
> +       unsigned char           operstate;
> +       unsigned char           link_mode;
>
> -       unsigned char           if_port;        /* Selectable AUI, TP,..*/
> -       unsigned char           dma;            /* DMA channel          */
> +       unsigned char           if_port;
> +       unsigned char           dma;
>
> -       unsigned int            mtu;    /* interface MTU value          */
> -       unsigned short          type;   /* interface hardware type      */
> -       unsigned short          hard_header_len;        /* hardware hdr length  */
> +       unsigned int            mtu;
> +       unsigned short          type;
> +       unsigned short          hard_header_len;
>
> -       /* extra head- and tailroom the hardware may need, but not in all cases
> -        * can this be guaranteed, especially tailroom. Some cases also use
> -        * LL_MAX_HEADER instead to allocate the skb.
> -        */
>         unsigned short          needed_headroom;
>         unsigned short          needed_tailroom;
>
>         /* Interface address info. */
> -       unsigned char           perm_addr[MAX_ADDR_LEN]; /* permanent hw address */
> -       unsigned char           addr_assign_type; /* hw address assignment type */
> -       unsigned char           addr_len;       /* hardware address length      */
> +       unsigned char           perm_addr[MAX_ADDR_LEN];
> +       unsigned char           addr_assign_type;
> +       unsigned char           addr_len;
>         unsigned short          neigh_priv_len;
> -       unsigned short          dev_id;         /* Used to differentiate devices
> -                                                * that share the same link
> -                                                * layer address
> -                                                */
> -       unsigned short          dev_port;       /* Used to differentiate
> -                                                * devices that share the same
> -                                                * function
> -                                                */
> +       unsigned short          dev_id;
> +       unsigned short          dev_port;
>         spinlock_t              addr_list_lock;
> -       struct netdev_hw_addr_list      uc;     /* Unicast mac addresses */
> -       struct netdev_hw_addr_list      mc;     /* Multicast mac addresses */
> -       struct netdev_hw_addr_list      dev_addrs; /* list of device
> -                                                   * hw addresses
> -                                                   */
> +       struct netdev_hw_addr_list      uc;
> +       struct netdev_hw_addr_list      mc;
> +       struct netdev_hw_addr_list      dev_addrs;
> +
>  #ifdef CONFIG_SYSFS
>         struct kset             *queues_kset;
>  #endif
> @@ -1387,40 +1541,34 @@ struct net_device {
>         /* Protocol specific pointers */
>
>  #if IS_ENABLED(CONFIG_VLAN_8021Q)
> -       struct vlan_info __rcu  *vlan_info;     /* VLAN info */
> +       struct vlan_info __rcu  *vlan_info;
>  #endif
>  #if IS_ENABLED(CONFIG_NET_DSA)
> -       struct dsa_switch_tree  *dsa_ptr;       /* dsa specific data */
> +       struct dsa_switch_tree  *dsa_ptr;
>  #endif
>  #if IS_ENABLED(CONFIG_TIPC)
> -       struct tipc_bearer __rcu *tipc_ptr;     /* TIPC specific data */
> +       struct tipc_bearer __rcu *tipc_ptr;
>  #endif
> -       void                    *atalk_ptr;     /* AppleTalk link       */
> -       struct in_device __rcu  *ip_ptr;        /* IPv4 specific data   */
> -       struct dn_dev __rcu     *dn_ptr;        /* DECnet specific data */
> -       struct inet6_dev __rcu  *ip6_ptr;       /* IPv6 specific data */
> -       void                    *ax25_ptr;      /* AX.25 specific data */
> -       struct wireless_dev     *ieee80211_ptr; /* IEEE 802.11 specific data,
> -                                                  assign before registering */
> +       void                    *atalk_ptr;
> +       struct in_device __rcu  *ip_ptr;
> +       struct dn_dev __rcu     *dn_ptr;
> +       struct inet6_dev __rcu  *ip6_ptr;
> +       void                    *ax25_ptr;
> +       struct wireless_dev     *ieee80211_ptr;
>
>  /*
>   * Cache lines mostly used on receive path (including eth_type_trans())
>   */
> -       unsigned long           last_rx;        /* Time of last Rx */
> +       unsigned long           last_rx;
>
>         /* Interface address info used in eth_type_trans() */
> -       unsigned char           *dev_addr;      /* hw address, (before bcast
> -                                                  because most packets are
> -                                                  unicast) */
> +       unsigned char           *dev_addr;
>
>
>  #ifdef CONFIG_SYSFS
>         struct netdev_rx_queue  *_rx;
>
> -       /* Number of RX queues allocated at register_netdev() time */
>         unsigned int            num_rx_queues;
> -
> -       /* Number of RX queues currently active in device */
>         unsigned int            real_num_rx_queues;
>
>  #endif
> @@ -1429,33 +1577,23 @@ struct net_device {
>         void __rcu              *rx_handler_data;
>
>         struct netdev_queue __rcu *ingress_queue;
> -       unsigned char           broadcast[MAX_ADDR_LEN];        /* hw bcast add */
> +       unsigned char           broadcast[MAX_ADDR_LEN];
>
>
>  /*
>   * Cache lines mostly used on transmit path
>   */
>         struct netdev_queue     *_tx ____cacheline_aligned_in_smp;
> -
> -       /* Number of TX queues allocated at alloc_netdev_mq() time  */
>         unsigned int            num_tx_queues;
> -
> -       /* Number of TX queues currently active in device  */
>         unsigned int            real_num_tx_queues;
> -
> -       /* root qdisc from userspace point of view */
>         struct Qdisc            *qdisc;
> -
> -       unsigned long           tx_queue_len;   /* Max frames per queue allowed */
> +       unsigned long           tx_queue_len;
>         spinlock_t              tx_global_lock;
>
>  #ifdef CONFIG_XPS
>         struct xps_dev_maps __rcu *xps_maps;
>  #endif
>  #ifdef CONFIG_RFS_ACCEL
> -       /* CPU reverse-mapping for RX completion interrupts, indexed
> -        * by RX queue number.  Assigned by driver.  This must only be
> -        * set if the ndo_rx_flow_steer operation is defined. */
>         struct cpu_rmap         *rx_cpu_rmap;
>  #endif
>
> @@ -1465,22 +1603,17 @@ struct net_device {
>          * trans_start here is expensive for high speed devices on SMP,
>          * please use netdev_queue->trans_start instead.
>          */
> -       unsigned long           trans_start;    /* Time (in jiffies) of last Tx */
> +       unsigned long           trans_start;
>
> -       int                     watchdog_timeo; /* used by dev_watchdog() */
> +       int                     watchdog_timeo;
>         struct timer_list       watchdog_timer;
>
> -       /* Number of references to this device */
>         int __percpu            *pcpu_refcnt;
> -
> -       /* delayed register/unregister */
>         struct list_head        todo_list;
> -       /* device index hash chain */
> -       struct hlist_node       index_hlist;
>
> +       struct hlist_node       index_hlist;
>         struct list_head        link_watch_list;
>
> -       /* register/unregister state machine */
>         enum { NETREG_UNINITIALIZED=0,
>                NETREG_REGISTERED,       /* completed register_netdevice */
>                NETREG_UNREGISTERING,    /* called unregister_netdevice */
> @@ -1489,14 +1622,13 @@ struct net_device {
>                NETREG_DUMMY,            /* dummy device for NAPI poll */
>         } reg_state:8;
>
> -       bool dismantle; /* device is going do be freed */
> +       bool dismantle;
>
>         enum {
>                 RTNL_LINK_INITIALIZED,
>                 RTNL_LINK_INITIALIZING,
>         } rtnl_link_state:16;
>
> -       /* Called from unregister, can be used to call free_netdev */
>         void (*destructor)(struct net_device *dev);
>
>  #ifdef CONFIG_NETPOLL
> @@ -1504,31 +1636,25 @@ struct net_device {
>  #endif
>
>  #ifdef CONFIG_NET_NS
> -       /* Network namespace this network device is inside */
>         struct net              *nd_net;
>  #endif
>
>         /* mid-layer private */
>         union {
> -               void                            *ml_priv;
> -               struct pcpu_lstats __percpu     *lstats; /* loopback stats */
> +               void                                    *ml_priv;
> +               struct pcpu_lstats __percpu             *lstats;
>                 struct pcpu_sw_netstats __percpu        *tstats;
> -               struct pcpu_dstats __percpu     *dstats; /* dummy stats */
> -               struct pcpu_vstats __percpu     *vstats; /* veth stats */
> +               struct pcpu_dstats __percpu             *dstats;
> +               struct pcpu_vstats __percpu             *vstats;
>         };
> -       /* GARP */
> +
>         struct garp_port __rcu  *garp_port;
> -       /* MRP */
>         struct mrp_port __rcu   *mrp_port;
>
> -       /* class/net/name entry */
> -       struct device           dev;
> -       /* space for optional device, statistics, and wireless sysfs groups */
> +       struct device   dev;
>         const struct attribute_group *sysfs_groups[4];
> -       /* space for optional per-rx queue attributes */
>         const struct attribute_group *sysfs_rx_queue_group;
>
> -       /* rtnetlink link ops */
>         const struct rtnl_link_ops *rtnl_link_ops;
>
>         /* for setting kernel sock attribute on TCP connection setup */
> @@ -1538,7 +1664,6 @@ struct net_device {
>         u16                     gso_max_segs;
>
>  #ifdef CONFIG_DCB
> -       /* Data Center Bridging netlink ops */
>         const struct dcbnl_rtnl_ops *dcbnl_ops;
>  #endif
>         u8 num_tc;
> @@ -1546,20 +1671,14 @@ struct net_device {
>         u8 prio_tc_map[TC_BITMASK + 1];
>
>  #if IS_ENABLED(CONFIG_FCOE)
> -       /* max exchange id for FCoE LRO by ddp */
>         unsigned int            fcoe_ddp_xid;
>  #endif
>  #if IS_ENABLED(CONFIG_CGROUP_NET_PRIO)
>         struct netprio_map __rcu *priomap;
>  #endif
> -       /* phy device may attach itself for hardware timestamping */
>         struct phy_device *phydev;
> -
>         struct lock_class_key *qdisc_tx_busylock;
> -
> -       /* group the device belongs to */
>         int group;
> -
>         struct pm_qos_request   pm_qos_req;
>  };
>  #define to_net_dev(d) container_of(d, struct net_device, dev)
> --
> 1.9.1
>
> --
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-- 
Florian
--
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