Commit b6bf8c68 authored Apr 01, 2016 by Ben Greear Committed by Johannes Berg Apr 05, 2016

mac80211: ensure no limits on station rhashtable



By default, the rhashtable logic will fail to insert
objects if the key-chains are too long and un-balanced.

In the degenerate case where mac80211 is creating many
virtual interfaces connected to the same peer(s), this
case can happen.

St insecure_elasticity to true to allow chains to grow
as long as needed.

Signed-off-by: Ben Greear <greearb@candelatech.com>
[remove message, change commit message slightly]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

parent 62b14b24

net/mac80211/sta_info.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -67,6 +67,7 @@

		static const struct rhashtable_params sta_rht_params = {
		.nelem_hint = 3, /* start small */
		.insecure_elasticity = true, /* Disable chain-length checks. */
		.automatic_shrinking = true,
		.head_offset = offsetof(struct sta_info, hash_node),
		.key_offset = offsetof(struct sta_info, addr),