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neighbour: Remove bare neighbour::next pointer

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Remove the now-unused neighbour::next pointer, leaving struct neighbour
solely with the hlist_node implementation.

Signed-off-by: Gilad Naaman <gnaaman@drivenets.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20241107160444.2913124-6-gnaaman@drivenets.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Gilad Naaman 2024-11-07 16:04:42 +00:00 • committed by Jakub Kicinski
parent 0e3bcb0f78
commit a01a67ab2f
3 changed files with 12 additions and 84 deletions
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4
include/net/neighbour.h
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@ -135,7 +135,6 @@ struct neigh_statistics {
#define NEIGH_CACHE_STAT_INC(tbl, field) this_cpu_inc((tbl)->stats->field)
struct neighbour {
struct neighbour __rcu *next;
struct hlist_node hash;
struct neigh_table *tbl;
struct neigh_parms *parms;
@ -191,7 +190,6 @@ struct pneigh_entry {
#define NEIGH_NUM_HASH_RND 4
struct neigh_hash_table {
struct neighbour __rcu **hash_buckets;
struct hlist_head *hash_heads;
unsigned int hash_shift;
__u32 hash_rnd[NEIGH_NUM_HASH_RND];
@ -354,7 +352,7 @@ int __neigh_event_send(struct neighbour *neigh, struct sk_buff *skb,
int neigh_update(struct neighbour *neigh, const u8 *lladdr, u8 new, u32 flags,
u32 nlmsg_pid);
void __neigh_set_probe_once(struct neighbour *neigh);
bool neigh_remove_one(struct neighbour *ndel, struct neigh_table *tbl);
bool neigh_remove_one(struct neighbour *ndel);
void neigh_changeaddr(struct neigh_table *tbl, struct net_device *dev);
int neigh_ifdown(struct neigh_table *tbl, struct net_device *dev);
int neigh_carrier_down(struct neigh_table *tbl, struct net_device *dev);