5e54b3c120
Move 'macaddr_count' from after 'netpoll' to after 'nest_level' to pack
and reduce a memory hole.
Fixes: 88ca59d1aa (macvlan: remove unused fields in struct macvlan_dev)
Signed-off-by: Girish Moodalbail <girish.moodalbail@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
89 lines
2.2 KiB
C
89 lines
2.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _LINUX_IF_MACVLAN_H
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#define _LINUX_IF_MACVLAN_H
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#include <linux/if_link.h>
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#include <linux/if_vlan.h>
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#include <linux/list.h>
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#include <linux/netdevice.h>
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#include <linux/netlink.h>
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#include <net/netlink.h>
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#include <linux/u64_stats_sync.h>
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struct macvlan_port;
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#define MACVLAN_MC_FILTER_BITS 8
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#define MACVLAN_MC_FILTER_SZ (1 << MACVLAN_MC_FILTER_BITS)
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struct macvlan_dev {
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struct net_device *dev;
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struct list_head list;
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struct hlist_node hlist;
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struct macvlan_port *port;
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struct net_device *lowerdev;
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void *fwd_priv;
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struct vlan_pcpu_stats __percpu *pcpu_stats;
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DECLARE_BITMAP(mc_filter, MACVLAN_MC_FILTER_SZ);
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netdev_features_t set_features;
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enum macvlan_mode mode;
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u16 flags;
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int nest_level;
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unsigned int macaddr_count;
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#ifdef CONFIG_NET_POLL_CONTROLLER
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struct netpoll *netpoll;
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#endif
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};
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static inline void macvlan_count_rx(const struct macvlan_dev *vlan,
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unsigned int len, bool success,
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bool multicast)
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{
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if (likely(success)) {
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struct vlan_pcpu_stats *pcpu_stats;
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pcpu_stats = this_cpu_ptr(vlan->pcpu_stats);
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u64_stats_update_begin(&pcpu_stats->syncp);
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pcpu_stats->rx_packets++;
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pcpu_stats->rx_bytes += len;
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if (multicast)
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pcpu_stats->rx_multicast++;
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u64_stats_update_end(&pcpu_stats->syncp);
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} else {
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this_cpu_inc(vlan->pcpu_stats->rx_errors);
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}
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}
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extern void macvlan_common_setup(struct net_device *dev);
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extern int macvlan_common_newlink(struct net *src_net, struct net_device *dev,
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struct nlattr *tb[], struct nlattr *data[],
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struct netlink_ext_ack *extack);
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extern void macvlan_count_rx(const struct macvlan_dev *vlan,
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unsigned int len, bool success,
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bool multicast);
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extern void macvlan_dellink(struct net_device *dev, struct list_head *head);
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extern int macvlan_link_register(struct rtnl_link_ops *ops);
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#if IS_ENABLED(CONFIG_MACVLAN)
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static inline struct net_device *
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macvlan_dev_real_dev(const struct net_device *dev)
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{
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struct macvlan_dev *macvlan = netdev_priv(dev);
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return macvlan->lowerdev;
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}
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#else
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static inline struct net_device *
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macvlan_dev_real_dev(const struct net_device *dev)
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{
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BUG();
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return NULL;
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}
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#endif
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#endif /* _LINUX_IF_MACVLAN_H */
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