/* linux/net/inet/arp.h */
#ifndef _ARP_H
#define _ARP_H

#include <linux/if_arp.h>
#include <linux/hash.h>
#include <net/neighbour.h>


extern struct neigh_table arp_tbl;

static inline u32 arp_hashfn(const void *pkey, const struct net_device *dev, u32 *hash_rnd)
{
	u32 key = *(const u32 *)pkey;
	u32 val = key ^ hash32_ptr(dev);

	return val * hash_rnd[0];
}

static inline struct neighbour *__ipv4_neigh_lookup_noref(struct net_device *dev, u32 key)
{
	return ___neigh_lookup_noref(&arp_tbl, neigh_key_eq32, arp_hashfn, &key, dev);
}

static inline struct neighbour *__ipv4_neigh_lookup(struct net_device *dev, u32 key)
{
	struct neighbour *n;

	rcu_read_lock_bh();
	n = __ipv4_neigh_lookup_noref(dev, key);
	if (n && !atomic_inc_not_zero(&n->refcnt))
		n = NULL;
	rcu_read_unlock_bh();

	return n;
}

void arp_init(void);
int arp_ioctl(struct net *net, unsigned int cmd, void __user *arg);
void arp_send(int type, int ptype, __be32 dest_ip,
	      struct net_device *dev, __be32 src_ip,
	      const unsigned char *dest_hw,
	      const unsigned char *src_hw, const unsigned char *th);
int arp_mc_map(__be32 addr, u8 *haddr, struct net_device *dev, int dir);
void arp_ifdown(struct net_device *dev);

struct sk_buff *arp_create(int type, int ptype, __be32 dest_ip,
			   struct net_device *dev, __be32 src_ip,
			   const unsigned char *dest_hw,
			   const unsigned char *src_hw,
			   const unsigned char *target_hw);
void arp_xmit(struct sk_buff *skb);

#endif	/* _ARP_H */
='sub right'>Tobias Klauser</td></tr></table>
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<tr><th>author</th><td>Jiri Slaby &lt;jslaby@suse.cz&gt;</td><td class='right'>2017-01-18 14:29:21 +0100</td></tr>
<tr><th>committer</th><td>Ingo Molnar &lt;mingo@kernel.org&gt;</td><td class='right'>2017-01-19 08:39:44 +0100</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/tools/testing/radix-tree/.gitignore?id=b5b46c4740aed1538544f0fa849c5b76c7823469'>b5b46c4740aed1538544f0fa849c5b76c7823469</a> (<a href='/cgit.cgi/linux/net-next.git/patch/tools/testing/radix-tree/.gitignore?id=b5b46c4740aed1538544f0fa849c5b76c7823469'>patch</a>)</td></tr>
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<div class='commit-subject'>objtool: Fix IRET's opcode</div><div class='commit-msg'>The IRET opcode is 0xcf according to the Intel manual and also to objdump of my
vmlinux:

    1ea8:       48 cf                   iretq

Fix the opcode in arch_decode_instruction().

The previous value (0xc5) seems to correspond to LDS.

Signed-off-by: Jiri Slaby &lt;jslaby@suse.cz&gt;
Acked-by: Josh Poimboeuf &lt;jpoimboe@redhat.com&gt;
Cc: Andy Lutomirski &lt;luto@kernel.org&gt;
Cc: Borislav Petkov &lt;bp@alien8.de&gt;
Cc: Brian Gerst &lt;brgerst@gmail.com&gt;
Cc: Denys Vlasenko &lt;dvlasenk@redhat.com&gt;
Cc: H. Peter Anvin &lt;hpa@zytor.com&gt;
Cc: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
Cc: Peter Zijlstra &lt;peterz@infradead.org&gt;
Cc: Thomas Gleixner &lt;tglx@linutronix.de&gt;
Link: http://lkml.kernel.org/r/20170118132921.19319-1-jslaby@suse.cz
Signed-off-by: Ingo Molnar &lt;mingo@kernel.org&gt;
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