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  *   ˆl–Ü4ý( ©³( 	Å€fàB¦-ÿÂƒ"s_†I|¥+ÂÁ .    /* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_TTY_BUFFER_H
#define _LINUX_TTY_BUFFER_H

#include <linux/atomic.h>
#include <linux/llist.h>
#include <linux/mutex.h>
#include <linux/workqueue.h>

struct tty_buffer {
	union {
		struct tty_buffer *next;
		struct llist_node free;
	};
	unsigned int used;
	unsigned int size;
	unsigned int commit;
	unsigned int lookahead;		/* Lazy update on recv, can become less than "read" */
	unsigned int read;
	bool flags;
	/* Data points here */
	u8 data[] __aligned(sizeof(unsigned long));
};

static inline u8 *char_buf_ptr(struct tty_buffer *b, unsigned int ofs)
{
	return b->data + ofs;
}

static inline u8 *flag_buf_ptr(struct tty_buffer *b, unsigned int ofs)
{
	return char_buf_ptr(b, ofs) + b->size;
}

struct tty_bufhead {
	struct tty_buffer *head;	/* Queue head */
	struct work_struct work;
	struct mutex	   lock;
	atomic_t	   priority;
	struct tty_buffer sentinel;
	struct llist_head free;		/* Free queue head */
	atomic_t	   mem_used;    /* In-use buffers excluding free list */
	int		   mem_limit;
	struct tty_buffer *tail;	/* Active buffer */
};

/*
 * When a break, frame error, or parity error happens, these codes are
 * stuffed into the flags buffer.
 */
#define TTY_NORMAL	0
#define TTY_BREAK	1
#define TTY_FRAME	2
#define TTY_PARITY	3
#define TTY_OVERRUN	4

#endif
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     	ˆ¿Ãƒyæ_¾ÂÁ "‡    	/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _IPV6_H
#define _IPV6_H

#include <uapi/linux/ipv6.h>
#include <linux/cache.h>

#include <linux/rh_kabi.h>

#define ipv6_optlen(p)  (((p)->hdrlen+1) << 3)
#define ipv6_authlen(p) (((p)->hdrlen+2) << 2)
/*
 * This structure contains configuration options per IPv6 link.
 */
struct ipv6_devconf {
	/* RX & TX fastpath fields. */
	__cacheline_group_begin(ipv6_devconf_read_txrx);
	__s32		disable_ipv6;
	__s32		hop_limit;
	__s32		mtu6;
	__s32		forwarding;
	__s32		disable_policy;
	__s32		proxy_ndp;
	__cacheline_group_end(ipv6_devconf_read_txrx);

	__s32		accept_ra;
	__s32		accept_redirects;
	__s32		autoconf;
	__s32		dad_transmits;
	__s32		rtr_solicits;
	__s32		rtr_solicit_interval;
	__s32		rtr_solicit_max_interval;
	__s32		rtr_solicit_delay;
	__s32		force_mld_version;
	__s32		mldv1_unsolicited_report_interval;
	__s32		mldv2_unsolicited_report_interval;
	__s32		use_tempaddr;
	__s32		temp_valid_lft;
	__s32		temp_prefered_lft;
	__s32		regen_max_retry;
	__s32		max_desync_factor;
	__s32		max_addresses;
	__s32		accept_ra_defrtr;
	__u32		ra_defrtr_metric;
	__s32		accept_ra_min_hop_limit;
	__s32		accept_ra_pinfo;
	__s32		ignore_routes_with_linkdown;
#ifdef CONFIG_IPV6_ROUTER_PREF
	__s32		accept_ra_rtr_pref;
	__s32		rtr_probe_interval;
#ifdef CONFIG_IPV6_ROUTE_INFO
	__s32		accept_ra_rt_info_min_plen;
	__s32		accept_ra_rt_info_max_plen;
#endif
#endif
	__s32		accept_source_route;
	__s32		accept_ra_from_local;
#ifdef CONFIG_IPV6_OPTIMISTIC_DAD
	__s32		optimistic_dad;
	__s32		use_optimistic;
#endif
#ifdef CONFIG_IPV6_MROUTE
	atomic_t	mc_forwarding;
#endif
	__s32		drop_unicast_in_l2_multicast;
	__s32		accept_dad;
	__s32		force_tllao;
	__s32           ndisc_notify;
	__s32		suppress_frag_ndisc;
	__s32		accept_ra_mtu;
	__s32		drop_unsolicited_na;
	struct ipv6_stable_secret {
		bool initialized;
		struct in6_addr secret;
	} stable_secret;
	__s32		use_oif_addrs_only;
	__s32		keep_addr_on_down;
	__s32		seg6_enabled;
#ifdef CONFIG_IPV6_SEG6_HMAC
	__s32		seg6_require_hmac;
#endif
	__u32		enhanced_dad;
	__u32		addr_gen_mode;
	__s32           ndisc_tclass;
	__s32		rpl_seg_enabled;

	struct ctl_table_header *sysctl_header;

	RH_KABI_RESERVE(1)
	RH_KABI_RESERVE(2)
	RH_KABI_RESERVE(3)
	RH_KABI_RESERVE(4)
	RH_KABI_RESERVE(5)
	RH_KABI_RESERVE(6)
	RH_KABI_RESERVE(7)
	RH_KABI_RESERVE(8)
	RH_KABI_RESERVE(9)
	RH_KABI_RESERVE(10)
	RH_KABI_RESERVE(11)
	RH_KABI_RESERVE(12)
	RH_KABI_RESERVE(13)
	RH_KABI_RESERVE(14)
	RH_KABI_RESERVE(15)
	RH_KABI_RESERVE(16)
};

struct ipv6_params {
	__s32 disable_ipv6;
	__s32 autoconf;
};
extern struct i