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authorLinus Torvalds <torvalds@linux-foundation.org>2025-01-22 08:28:57 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2025-01-22 08:28:57 -0800
commit0ad9617c78acbc71373fb341a6f75d4012b01d69 (patch)
tree602d7c9ec86d9a4891a96a2996af6e4368a647eb /include/linux/netdevice.h
parent5f537664e705b0bf8b7e329861f20128534f6a83 (diff)
parentcf33d96f50903214226b379b3f10d1f262dae018 (diff)
Merge tag 'net-next-6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Paolo Abeni: "This is slightly smaller than usual, with the most interesting work being still around RTNL scope reduction. Core: - More core refactoring to reduce the RTNL lock contention, including preparatory work for the per-network namespace RTNL lock, replacing RTNL lock with a per device-one to protect NAPI-related net device data and moving synchronize_net() calls outside such lock. - Extend drop reasons usage, adding net scheduler, AF_UNIX, bridge and more specific TCP coverage. - Reduce network namespace tear-down time by removing per-subsystems synchronize_net() in tipc and sched. - Add flow label selector support for fib rules, allowing traffic redirection based on such header field. Netfilter: - Do not remove netdev basechain when last device is gone, allowing netdev basechains without devices. - Revisit the flowtable teardown strategy, dealing better with fin, reset and re-open events. - Scale-up IP-vs connection dumping by avoiding linear search on each restart. Protocols: - A significant XDP socket refactor, consolidating and optimizing several helpers into the core - Better scaling of ICMP rate-limiting, by removing false-sharing in inet peers handling. - Introduces netlink notifications for multicast IPv4 and IPv6 address changes. - Add ipsec support for IP-TFS/AggFrag encapsulation, allowing aggregation and fragmentation of the inner IP. - Add sysctl to configure TIME-WAIT reuse delay for TCP sockets, to avoid local port exhaustion issues when the average connection lifetime is very short. - Support updating keys (re-keying) for connections using kernel TLS (for TLS 1.3 only). - Support ipv4-mapped ipv6 address clients in smc-r v2. - Add support for jumbo data packet transmission in RxRPC sockets, gluing multiple data packets in a single UDP packet. - Support RxRPC RACK-TLP to manage packet loss and retransmission in conjunction with the congestion control algorithm. Driver API: - Introduce a unified and structured interface for reporting PHY statistics, exposing consistent data across different H/W via ethtool. - Make timestamping selectable, allow the user to select the desired hwtstamp provider (PHY or MAC) administratively. - Add support for configuring a header-data-split threshold (HDS) value via ethtool, to deal with partial or buggy H/W implementation. - Consolidate DSA drivers Energy Efficiency Ethernet support. - Add EEE management to phylink, making use of the phylib implementation. - Add phylib support for in-band capabilities negotiation. - Simplify how phylib-enabled mac drivers expose the supported interfaces. Tests and tooling: - Make the YNL tool package-friendly to make it easier to deploy it separately from the kernel. - Increase TCP selftest coverage importing several packetdrill test-cases. - Regenerate the ethtool uapi header from the YNL spec, to ease maintenance and future development. - Add YNL support for decoding the link types used in net self-tests, allowing a single build to run both net and drivers/net. Drivers: - Ethernet high-speed NICs: - nVidia/Mellanox (mlx5): - add cross E-Switch QoS support - add SW Steering support for ConnectX-8 - implement support for HW-Managed Flow Steering, improving the rule deletion/insertion rate - support for multi-host LAG - Intel (ixgbe, ice, igb): - ice: add support for devlink health events - ixgbe: add initial support for E610 chipset variant - igb: add support for AF_XDP zero-copy - Meta: - add support for basic RSS config - allow changing the number of channels - add hardware monitoring support - Broadcom (bnxt): - implement TCP data split and HDS threshold ethtool support, enabling Device Memory TCP. - Marvell Octeon: - implement egress ipsec offload support for the cn10k family - Hisilicon (HIBMC): - implement unicast MAC filtering - Ethernet NICs embedded and virtual: - Convert UDP tunnel drivers to NETDEV_PCPU_STAT_DSTATS, avoiding contented atomic operations for drop counters - Freescale: - quicc: phylink conversion - enetc: support Tx and Rx checksum offload and improve TSO performances - MediaTek: - airoha: introduce support for ETS and HTB Qdisc offload - Microchip: - lan78XX USB: preparation work for phylink conversion - Synopsys (stmmac): - support DWMAC IP on NXP Automotive SoCs S32G2xx/S32G3xx/S32R45 - refactor EEE support to leverage the new driver API - optimize DMA and cache access to increase raw RX performances by 40% - TI: - icssg-prueth: add multicast filtering support for VLAN interface - netkit: - add ability to configure head/tailroom - VXLAN: - accepts packets with user-defined reserved bit - Ethernet switches: - Microchip: - lan969x: add RGMII support - lan969x: improve TX and RX performance using the FDMA engine - nVidia/Mellanox: - move Tx header handling to PCI driver, to ease XDP support - Ethernet PHYs: - Texas Instruments DP83822: - add support for GPIO2 clock output - Realtek: - 8169: add support for RTL8125D rev.b - rtl822x: add hwmon support for the temperature sensor - Microchip: - add support for RDS PTP hardware - consolidate periodic output signal generation - CAN: - several DT-bindings to DT schema conversions - tcan4x5x: - add HW standby support - support nWKRQ voltage selection - kvaser: - allowing Bus Error Reporting runtime configuration - WiFi: - the on-going Multi-Link Operation (MLO) effort continues, affecting both the stack and in drivers - mac80211/cfg80211: - Emergency Preparedness Communication Services (EPCS) station mode support - support for adding and removing station links for MLO - add support for WiFi 7/EHT mesh over 320 MHz channels - report Tx power info for each link - RealTek (rtw88): - enable USB Rx aggregation and USB 3 to improve performance - LED support - RealTek (rtw89): - refactor power save to support Multi-Link Operations - add support for RTL8922AE-VS variant - MediaTek (mt76): - single wiphy multiband support (preparation for MLO) - p2p device support - add TP-Link TXE50UH USB adapter support - Qualcomm (ath10k): - support for the QCA6698AQ IP core - Qualcomm (ath12k): - enable MLO for QCN9274 - Bluetooth: - Allow sysfs to trigger hdev reset, to allow recovering devices not responsive from user-space - MediaTek: add support for MT7922, MT7925, MT7921e devices - Realtek: add support for RTL8851BE devices - Qualcomm: add support for WCN785x devices - ISO: allow BIG re-sync" * tag 'net-next-6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1386 commits) net/rose: prevent integer overflows in rose_setsockopt() net: phylink: fix regression when binding a PHY net: ethernet: ti: am65-cpsw: streamline TX queue creation and cleanup net: ethernet: ti: am65-cpsw: streamline RX queue creation and cleanup net: ethernet: ti: am65-cpsw: ensure proper channel cleanup in error path ipv6: Convert inet6_rtm_deladdr() to per-netns RTNL. ipv6: Convert inet6_rtm_newaddr() to per-netns RTNL. ipv6: Move lifetime validation to inet6_rtm_newaddr(). ipv6: Set cfg.ifa_flags before device lookup in inet6_rtm_newaddr(). ipv6: Pass dev to inet6_addr_add(). ipv6: Convert inet6_ioctl() to per-netns RTNL. ipv6: Hold rtnl_net_lock() in addrconf_init() and addrconf_cleanup(). ipv6: Hold rtnl_net_lock() in addrconf_dad_work(). ipv6: Hold rtnl_net_lock() in addrconf_verify_work(). ipv6: Convert net.ipv6.conf.${DEV}.XXX sysctl to per-netns RTNL. ipv6: Add __in6_dev_get_rtnl_net(). net: stmmac: Drop redundant skb_mark_for_recycle() for SKB frags net: mii: Fix the Speed display when the network cable is not connected sysctl net: Remove macro checks for CONFIG_SYSCTL eth: bnxt: update header sizing defaults ...
Diffstat (limited to 'include/linux/netdevice.h')
-rw-r--r--include/linux/netdevice.h202
1 files changed, 172 insertions, 30 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index ecc686409161..8da4c61f97b9 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -63,6 +63,7 @@ struct dsa_port;
struct ip_tunnel_parm_kern;
struct macsec_context;
struct macsec_ops;
+struct netdev_config;
struct netdev_name_node;
struct sd_flow_limit;
struct sfp_bus;
@@ -82,6 +83,7 @@ struct xdp_metadata_ops;
struct xdp_md;
struct ethtool_netdev_state;
struct phy_link_topology;
+struct hwtstamp_provider;
typedef u32 xdp_features_t;
@@ -381,8 +383,9 @@ struct napi_struct {
struct sk_buff *skb;
struct list_head rx_list; /* Pending GRO_NORMAL skbs */
int rx_count; /* length of rx_list */
- unsigned int napi_id;
+ unsigned int napi_id; /* protected by netdev_lock */
struct hrtimer timer;
+ /* all fields past this point are write-protected by netdev_lock */
struct task_struct *thread;
unsigned long gro_flush_timeout;
unsigned long irq_suspend_timeout;
@@ -509,7 +512,7 @@ static inline bool napi_prefer_busy_poll(struct napi_struct *n)
* is scheduled for example in the context of delayed timer
* that can be skipped if a NAPI is already scheduled.
*
- * Return True if NAPI is scheduled, False otherwise.
+ * Return: True if NAPI is scheduled, False otherwise.
*/
static inline bool napi_is_scheduled(struct napi_struct *n)
{
@@ -524,7 +527,7 @@ bool napi_schedule_prep(struct napi_struct *n);
*
* Schedule NAPI poll routine to be called if it is not already
* running.
- * Return true if we schedule a NAPI or false if not.
+ * Return: true if we schedule a NAPI or false if not.
* Refer to napi_schedule_prep() for additional reason on why
* a NAPI might not be scheduled.
*/
@@ -558,7 +561,7 @@ static inline void napi_schedule_irqoff(struct napi_struct *n)
* Mark NAPI processing as complete. Should only be called if poll budget
* has not been completely consumed.
* Prefer over napi_complete().
- * Return false if device should avoid rearming interrupts.
+ * Return: false if device should avoid rearming interrupts.
*/
bool napi_complete_done(struct napi_struct *n, int work_done);
@@ -569,16 +572,11 @@ static inline bool napi_complete(struct napi_struct *n)
int dev_set_threaded(struct net_device *dev, bool threaded);
-/**
- * napi_disable - prevent NAPI from scheduling
- * @n: NAPI context
- *
- * Stop NAPI from being scheduled on this context.
- * Waits till any outstanding processing completes.
- */
void napi_disable(struct napi_struct *n);
+void napi_disable_locked(struct napi_struct *n);
void napi_enable(struct napi_struct *n);
+void napi_enable_locked(struct napi_struct *n);
/**
* napi_synchronize - wait until NAPI is not running
@@ -2045,6 +2043,7 @@ enum netdev_reg_state {
*
* @neighbours: List heads pointing to this device's neighbours'
* dev_list, one per address-family.
+ * @hwprov: Tracks which PTP performs hardware packet time stamping.
*
* FIXME: cleanup struct net_device such that network protocol info
* moves out.
@@ -2259,7 +2258,7 @@ struct net_device {
void *atalk_ptr;
#endif
#if IS_ENABLED(CONFIG_AX25)
- void *ax25_ptr;
+ struct ax25_dev __rcu *ax25_ptr;
#endif
#if IS_ENABLED(CONFIG_CFG80211)
struct wireless_dev *ieee80211_ptr;
@@ -2412,6 +2411,14 @@ struct net_device {
const struct udp_tunnel_nic_info *udp_tunnel_nic_info;
struct udp_tunnel_nic *udp_tunnel_nic;
+ /** @cfg: net_device queue-related configuration */
+ struct netdev_config *cfg;
+ /**
+ * @cfg_pending: same as @cfg but when device is being actively
+ * reconfigured includes any changes to the configuration
+ * requested by the user, but which may or may not be rejected.
+ */
+ struct netdev_config *cfg_pending;
struct ethtool_netdev_state *ethtool;
/* protected by rtnl_lock */
@@ -2442,8 +2449,27 @@ struct net_device {
u32 napi_defer_hard_irqs;
/**
- * @lock: protects @net_shaper_hierarchy, feel free to use for other
- * netdev-scope protection. Ordering: take after rtnl_lock.
+ * @up: copy of @state's IFF_UP, but safe to read with just @lock.
+ * May report false negatives while the device is being opened
+ * or closed (@lock does not protect .ndo_open, or .ndo_close).
+ */
+ bool up;
+
+ /**
+ * @lock: netdev-scope lock, protects a small selection of fields.
+ * Should always be taken using netdev_lock() / netdev_unlock() helpers.
+ * Drivers are free to use it for other protection.
+ *
+ * Protects:
+ * @gro_flush_timeout, @napi_defer_hard_irqs, @napi_list,
+ * @net_shaper_hierarchy, @reg_state, @threaded
+ *
+ * Partially protects (writers must hold both @lock and rtnl_lock):
+ * @up
+ *
+ * Also protects some fields in struct napi_struct.
+ *
+ * Ordering: take after rtnl_lock.
*/
struct mutex lock;
@@ -2457,6 +2483,8 @@ struct net_device {
struct hlist_head neighbours[NEIGH_NR_TABLES];
+ struct hwtstamp_provider __rcu *hwprov;
+
u8 priv[] ____cacheline_aligned
__counted_by(priv_len);
} ____cacheline_aligned;
@@ -2667,18 +2695,58 @@ void netif_queue_set_napi(struct net_device *dev, unsigned int queue_index,
enum netdev_queue_type type,
struct napi_struct *napi);
-static inline void netif_napi_set_irq(struct napi_struct *napi, int irq)
+static inline void netdev_lock(struct net_device *dev)
+{
+ mutex_lock(&dev->lock);
+}
+
+static inline void netdev_unlock(struct net_device *dev)
+{
+ mutex_unlock(&dev->lock);
+}
+
+static inline void netdev_assert_locked(struct net_device *dev)
+{
+ lockdep_assert_held(&dev->lock);
+}
+
+static inline void netdev_assert_locked_or_invisible(struct net_device *dev)
+{
+ if (dev->reg_state == NETREG_REGISTERED ||
+ dev->reg_state == NETREG_UNREGISTERING)
+ netdev_assert_locked(dev);
+}
+
+static inline void netif_napi_set_irq_locked(struct napi_struct *napi, int irq)
{
napi->irq = irq;
}
+static inline void netif_napi_set_irq(struct napi_struct *napi, int irq)
+{
+ netdev_lock(napi->dev);
+ netif_napi_set_irq_locked(napi, irq);
+ netdev_unlock(napi->dev);
+}
+
/* Default NAPI poll() weight
* Device drivers are strongly advised to not use bigger value
*/
#define NAPI_POLL_WEIGHT 64
-void netif_napi_add_weight(struct net_device *dev, struct napi_struct *napi,
- int (*poll)(struct napi_struct *, int), int weight);
+void netif_napi_add_weight_locked(struct net_device *dev,
+ struct napi_struct *napi,
+ int (*poll)(struct napi_struct *, int),
+ int weight);
+
+static inline void
+netif_napi_add_weight(struct net_device *dev, struct napi_struct *napi,
+ int (*poll)(struct napi_struct *, int), int weight)
+{
+ netdev_lock(dev);
+ netif_napi_add_weight_locked(dev, napi, poll, weight);
+ netdev_unlock(dev);
+}
/**
* netif_napi_add() - initialize a NAPI context
@@ -2697,6 +2765,13 @@ netif_napi_add(struct net_device *dev, struct napi_struct *napi,
}
static inline void
+netif_napi_add_locked(struct net_device *dev, struct napi_struct *napi,
+ int (*poll)(struct napi_struct *, int))
+{
+ netif_napi_add_weight_locked(dev, napi, poll, NAPI_POLL_WEIGHT);
+}
+
+static inline void
netif_napi_add_tx_weight(struct net_device *dev,
struct napi_struct *napi,
int (*poll)(struct napi_struct *, int),
@@ -2706,6 +2781,15 @@ netif_napi_add_tx_weight(struct net_device *dev,
netif_napi_add_weight(dev, napi, poll, weight);
}
+static inline void
+netif_napi_add_config_locked(struct net_device *dev, struct napi_struct *napi,
+ int (*poll)(struct napi_struct *, int), int index)
+{
+ napi->index = index;
+ napi->config = &dev->napi_config[index];
+ netif_napi_add_weight_locked(dev, napi, poll, NAPI_POLL_WEIGHT);
+}
+
/**
* netif_napi_add_config - initialize a NAPI context with persistent config
* @dev: network device
@@ -2717,9 +2801,9 @@ static inline void
netif_napi_add_config(struct net_device *dev, struct napi_struct *napi,
int (*poll)(struct napi_struct *, int), int index)
{
- napi->index = index;
- napi->config = &dev->napi_config[index];
- netif_napi_add_weight(dev, napi, poll, NAPI_POLL_WEIGHT);
+ netdev_lock(dev);
+ netif_napi_add_config_locked(dev, napi, poll, index);
+ netdev_unlock(dev);
}
/**
@@ -2739,6 +2823,8 @@ static inline void netif_napi_add_tx(struct net_device *dev,
netif_napi_add_tx_weight(dev, napi, poll, NAPI_POLL_WEIGHT);
}
+void __netif_napi_del_locked(struct napi_struct *napi);
+
/**
* __netif_napi_del - remove a NAPI context
* @napi: NAPI context
@@ -2747,7 +2833,18 @@ static inline void netif_napi_add_tx(struct net_device *dev,
* containing @napi. Drivers might want to call this helper to combine
* all the needed RCU grace periods into a single one.
*/
-void __netif_napi_del(struct napi_struct *napi);
+static inline void __netif_napi_del(struct napi_struct *napi)
+{
+ netdev_lock(napi->dev);
+ __netif_napi_del_locked(napi);
+ netdev_unlock(napi->dev);
+}
+
+static inline void netif_napi_del_locked(struct napi_struct *napi)
+{
+ __netif_napi_del_locked(napi);
+ synchronize_net();
+}
/**
* netif_napi_del - remove a NAPI context
@@ -2854,6 +2951,46 @@ static inline void dev_lstats_add(struct net_device *dev, unsigned int len)
u64_stats_update_end(&lstats->syncp);
}
+static inline void dev_dstats_rx_add(struct net_device *dev,
+ unsigned int len)
+{
+ struct pcpu_dstats *dstats = this_cpu_ptr(dev->dstats);
+
+ u64_stats_update_begin(&dstats->syncp);
+ u64_stats_inc(&dstats->rx_packets);
+ u64_stats_add(&dstats->rx_bytes, len);
+ u64_stats_update_end(&dstats->syncp);
+}
+
+static inline void dev_dstats_rx_dropped(struct net_device *dev)
+{
+ struct pcpu_dstats *dstats = this_cpu_ptr(dev->dstats);
+
+ u64_stats_update_begin(&dstats->syncp);
+ u64_stats_inc(&dstats->rx_drops);
+ u64_stats_update_end(&dstats->syncp);
+}
+
+static inline void dev_dstats_tx_add(struct net_device *dev,
+ unsigned int len)
+{
+ struct pcpu_dstats *dstats = this_cpu_ptr(dev->dstats);
+
+ u64_stats_update_begin(&dstats->syncp);
+ u64_stats_inc(&dstats->tx_packets);
+ u64_stats_add(&dstats->tx_bytes, len);
+ u64_stats_update_end(&dstats->syncp);
+}
+
+static inline void dev_dstats_tx_dropped(struct net_device *dev)
+{
+ struct pcpu_dstats *dstats = this_cpu_ptr(dev->dstats);
+
+ u64_stats_update_begin(&dstats->syncp);
+ u64_stats_inc(&dstats->tx_drops);
+ u64_stats_update_end(&dstats->syncp);
+}
+
#define __netdev_alloc_pcpu_stats(type, gfp) \
({ \
typeof(type) __percpu *pcpu_stats = alloc_percpu_gfp(type, gfp);\
@@ -3194,7 +3331,6 @@ static inline void unregister_netdevice(struct net_device *dev)
int netdev_refcnt_read(const struct net_device *dev);
void free_netdev(struct net_device *dev);
-void init_dummy_netdev(struct net_device *dev);
struct net_device *netdev_get_xmit_slave(struct net_device *dev,
struct sk_buff *skb,
@@ -3208,7 +3344,6 @@ struct net_device *netdev_get_by_index(struct net *net, int ifindex,
struct net_device *netdev_get_by_name(struct net *net, const char *name,
netdevice_tracker *tracker, gfp_t gfp);
struct net_device *dev_get_by_index_rcu(struct net *net, int ifindex);
-struct net_device *dev_get_by_napi_id(unsigned int napi_id);
void netdev_copy_name(struct net_device *dev, char *name);
static inline int dev_hard_header(struct sk_buff *skb, struct net_device *dev,
@@ -3322,6 +3457,7 @@ struct softnet_data {
};
DECLARE_PER_CPU_ALIGNED(struct softnet_data, softnet_data);
+DECLARE_PER_CPU(struct page_pool *, system_page_pool);
#ifndef CONFIG_PREEMPT_RT
static inline int dev_recursion_level(void)
@@ -3810,7 +3946,7 @@ static inline bool netif_attr_test_mask(unsigned long j,
* @online_mask: bitmask for CPUs/Rx queues that are online
* @nr_bits: number of bits in the bitmask
*
- * Returns true if a CPU/Rx queue is online.
+ * Returns: true if a CPU/Rx queue is online.
*/
static inline bool netif_attr_test_online(unsigned long j,
const unsigned long *online_mask,
@@ -3830,7 +3966,8 @@ static inline bool netif_attr_test_online(unsigned long j,
* @srcp: the cpumask/Rx queue mask pointer
* @nr_bits: number of bits in the bitmask
*
- * Returns >= nr_bits if no further CPUs/Rx queues set.
+ * Returns: next (after n) CPU/Rx queue index in the mask;
+ * >= nr_bits if no further CPUs/Rx queues set.
*/
static inline unsigned int netif_attrmask_next(int n, const unsigned long *srcp,
unsigned int nr_bits)
@@ -3852,7 +3989,8 @@ static inline unsigned int netif_attrmask_next(int n, const unsigned long *srcp,
* @src2p: the second CPUs/Rx queues mask pointer
* @nr_bits: number of bits in the bitmask
*
- * Returns >= nr_bits if no further CPUs/Rx queues set in both.
+ * Returns: next (after n) CPU/Rx queue index set in both masks;
+ * >= nr_bits if no further CPUs/Rx queues set in both.
*/
static inline int netif_attrmask_next_and(int n, const unsigned long *src1p,
const unsigned long *src2p,
@@ -3958,9 +4096,9 @@ static inline void dev_consume_skb_any(struct sk_buff *skb)
}
u32 bpf_prog_run_generic_xdp(struct sk_buff *skb, struct xdp_buff *xdp,
- struct bpf_prog *xdp_prog);
-void generic_xdp_tx(struct sk_buff *skb, struct bpf_prog *xdp_prog);
-int do_xdp_generic(struct bpf_prog *xdp_prog, struct sk_buff **pskb);
+ const struct bpf_prog *xdp_prog);
+void generic_xdp_tx(struct sk_buff *skb, const struct bpf_prog *xdp_prog);
+int do_xdp_generic(const struct bpf_prog *xdp_prog, struct sk_buff **pskb);
int netif_rx(struct sk_buff *skb);
int __netif_rx(struct sk_buff *skb);
@@ -4037,6 +4175,7 @@ struct sk_buff *dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev,
int bpf_xdp_link_attach(const union bpf_attr *attr, struct bpf_prog *prog);
u8 dev_xdp_prog_count(struct net_device *dev);
int dev_xdp_propagate(struct net_device *dev, struct netdev_bpf *bpf);
+u8 dev_xdp_sb_prog_count(struct net_device *dev);
u32 dev_xdp_prog_id(struct net_device *dev, enum bpf_xdp_mode mode);
u32 dev_get_min_mp_channel_count(const struct net_device *dev);
@@ -4248,7 +4387,7 @@ static inline bool netif_carrier_ok(const struct net_device *dev)
unsigned long dev_trans_start(struct net_device *dev);
-void __netdev_watchdog_up(struct net_device *dev);
+void netdev_watchdog_up(struct net_device *dev);
void netif_carrier_on(struct net_device *dev);
void netif_carrier_off(struct net_device *dev);
@@ -4642,6 +4781,9 @@ int devm_register_netdev(struct device *dev, struct net_device *ndev);
/* General hardware address lists handling functions */
int __hw_addr_sync(struct netdev_hw_addr_list *to_list,
struct netdev_hw_addr_list *from_list, int addr_len);
+int __hw_addr_sync_multiple(struct netdev_hw_addr_list *to_list,
+ struct netdev_hw_addr_list *from_list,
+ int addr_len);
void __hw_addr_unsync(struct netdev_hw_addr_list *to_list,
struct netdev_hw_addr_list *from_list, int addr_len);
int __hw_addr_sync_dev(struct netdev_hw_addr_list *list,