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neighbour: remove neigh_cleanup() method

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neigh_cleanup() has not been used for seven years, and was a wrong design.

Messing with shared pointer in bond_neigh_init() without proper
memory barriers would at least trigger syzbot complains eventually.

It is time to remove this stuff.

Fixes: b63b70d877 ("IPoIB: Use a private hash table for path lookup in xmit path")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet
2019-12-07 12:23:21 -08:00
committed by David S. Miller
parent 43aad8104b
commit f394722fb0
3 changed files with 0 additions and 12 deletions
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8
drivers/net/bonding/bond_main.c
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@@ -3712,18 +3712,10 @@ static int bond_neigh_init(struct neighbour *n)
return 0;
parms.neigh_setup = NULL;
parms.neigh_cleanup = NULL;
ret = slave_ops->ndo_neigh_setup(slave->dev, &parms);
if (ret)
return ret;
/* Assign slave's neigh_cleanup to neighbour in case cleanup is called
* after the last slave has been detached. Assumes that all slaves
* utilize the same neigh_cleanup (true at this writing as only user
* is ipoib).
*/
n->parms->neigh_cleanup = parms.neigh_cleanup;
if (!parms.neigh_setup)
return 0;