From 1026fec8739663621d64216ba939c23bc1d089b7 Mon Sep 17 00:00:00 2001 From: David Miller Date: Mon, 25 Jul 2011 00:01:17 +0000 Subject: [PATCH] neigh: Create mechanism for generic neigh private areas. The implementation private sits right after the primary_key memory. Signed-off-by: David S. Miller --- include/net/neighbour.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/include/net/neighbour.h b/include/net/neighbour.h index 7ae5acff96e9..87c0e5ce6492 100644 --- a/include/net/neighbour.h +++ b/include/net/neighbour.h @@ -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 -- 2.39.5