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neigh: Create mechanism for generic neigh private areas. 

The implementation private sits right after the primary_key memory.

Signed-off-by: David S. Miller <davem@davemloft.net>
hifive-unleashed-5.1
David Miller 2011-07-25 00:01:17 +00:00 committed by David S. Miller
parent 449fa023bc
commit 1026fec873
1 changed files with 7 additions and 0 deletions
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7
include/net/neighbour.h
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@ -179,6 +179,13 @@ struct neigh_table {
struct pneigh_entry **phash_buckets;
};
#define NEIGH_PRIV_ALIGN sizeof(long long)
static inline void *neighbour_priv(const struct neighbour *n)
{
return (char *)n + ALIGN(sizeof(*n) + n->tbl->key_len, NEIGH_PRIV_ALIGN);
}
/* flags for neigh_update() */
#define NEIGH_UPDATE_F_OVERRIDE 0x00000001
#define NEIGH_UPDATE_F_WEAK_OVERRIDE 0x00000002