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     ˆÅÄ284Ã¾Á     /* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_NS_COMMON_H
#define _LINUX_NS_COMMON_H

#include <linux/refcount.h>

struct proc_ns_operations;

struct ns_common {
	struct dentry *stashed;
	const struct proc_ns_operations *ops;
	unsigned int inum;
	refcount_t count;
};

#endif
     	ˆÅÄƒO½Ã¾Á Ú    	/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * sched_clock.h: support for extending counters to full 64-bit ns counter
 */
#ifndef LINUX_SCHED_CLOCK
#define LINUX_SCHED_CLOCK

#include <linux/types.h>

#ifdef CONFIG_GENERIC_SCHED_CLOCK
/**
 * struct clock_read_data - data required to read from sched_clock()
 *
 * @epoch_ns:		sched_clock() value at last update
 * @epoch_cyc:		Clock cycle value at last update.
 * @sched_clock_mask:   Bitmask for two's complement subtraction of non 64bit
 *			clocks.
 * @read_sched_clock:	Current clock source (or dummy source when suspended).
 * @mult:		Multiplier for scaled math conversion.
 * @shift:		Shift value for scaled math conversion.
 *
 * Care must be taken when updating this structure; it is read by
 * some very hot code paths. It occupies <=40 bytes and, when combined
 * with the seqcount used to synchronize access, comfortably fits into
 * a 64 byte cache line.
 */
struct clock_read_data {
	u64 epoch_ns;
	u64 epoch_cyc;
	u64 sched_clock_mask;
	u64 (*read_sched_clock)(void);
	u32 mult;
	u32 shift;
};

extern struct clock_read_data *sched_clock_read_begin(unsigned int *seq);
extern int sched_clock_read_retry(unsigned int seq);

extern void generic_sched_clock_init(void);

extern void sched_clock_register(u64 (*read)(void), int bits,
				 unsigned long rate);
#else
static inline void generic_sched_clock_init(void) { }

static inline void sched_clock_register(u64 (*read)(void), int bits,
					unsigned long rate)
{
}
#endif

#endif
     ˆÅÄƒÌ‡Ã¾Á     /* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_IF_MACVLAN_H
#define _LINUX_IF_MACVLAN_H

#include <linux/if_link.h>
#include <linux/if_vlan.h>
#include <linux/list.h>
#include <linux/netdevice.h>
#include <linux/netlink.h>
#include <net/netlink.h>
#include <linux/u64_stats_sync.h>

struct macvlan_port;

#define MACVLAN_MC_FILTER_BITS	8
#define MACVLAN_MC_FILTER_SZ	(1 << MACVLAN_MC_FILTER_BITS)

struct macvlan_dev {
	struct net_device	*dev;
	struct list_head	list;
	struct hlist_node	hlist;
	struct macvlan_port	*port;
	struct net_device	*lowerdev;
	netdevice_tracker	dev_tracker;
	void			*accel_priv;
	struct vlan_pcpu_stats __percpu *pcpu_stats;

	DECLARE_BITMAP(mc_filter, MACVLAN_MC_FILTER_SZ);

	netdev_features_t	set_features;
	enum macvlan_mode	mode;
	u16			flags;
	unsigned int		macaddr_count;
	u32			bc_queue_len_req;
#ifdef CONFIG_NET_POLL_CONTROLLER
	struct netpoll		*netpoll;
#endif
};

static inline void macvlan_count_rx(const struct macvlan_dev *vlan,
				    unsigned int len, bool success,
				    bool multicast)
{
	if (likely(success)) {
		struct vlan_pcpu_stats *pcpu_stats;

		pcpu_stats = get_cpu_ptr(vlan->pcpu_stats);
		u64_stats_update_begin(&pcpu_stats->syncp);
		u64_stats_inc(&pcpu_stats->rx_packets);
		u64_stats_add(&pcpu_stats->rx_bytes, len);
		if (multicast)
			u64_stats_inc(&pcpu_stats->rx_multicast);
		u64_stats_update_end(&pcpu_stats->syncp);
		put_cpu_ptr(vlan->pcpu_stats);
	} else {
		this_cpu_inc(vlan->pcpu_stats->rx_errors);
	}
}

extern void macvlan_common_setup(struct net_device *dev);

extern int macvlan_common_newlink(struct net *src_net, struct net_device *dev,
				  struct nlattr *tb[], struct nlattr *data[],
				  struct netlink_ext_ack *extack);

extern void macvlan_dellink(struct net_device *dev, struct list_head *head);

extern int macvlan_link_register(struct rtnl_link_ops *ops);

#if IS_ENABLED(CONFIG_MACVLAN)
static inline struct net_device *
macvlan_dev_real_dev(const struct net_device *dev)
{
	struct macvlan_dev *macvlan = netdev_priv(dev);

	return macvlan->lowerdev;
}
#else
static inline struct net_device *
macvlan_dev_real_dev(const struct net_device *dev)
{
	BUG();
	return NULL;
}
#endif

static inline void *macvlan_accel_priv(stru