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mac80211_hwsim: drop now unused work-queue from hwsim

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The work-queue was used for deferred destruction of hwsim radios;
this does not work well with namespaces about to exit. The one
remaining user has been migrated, so drop the now unused work-queue
instance.

Signed-off-by: Martin Willi <martin@strongswan.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Martin Willi 2018-09-25 09:41:15 +02:00 committed by Johannes Berg
parent 188de5dd80
commit 1edcfc20c9
1 changed files with 1 additions and 10 deletions
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11
drivers/net/wireless/mac80211_hwsim.c
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@ -495,7 +495,6 @@ static const struct ieee80211_iface_combination hwsim_if_comb_p2p_dev[] = {
static spinlock_t hwsim_radio_lock;
static LIST_HEAD(hwsim_radios);
static struct workqueue_struct *hwsim_wq;
static struct rhashtable hwsim_radios_rht;
static int hwsim_radio_idx;
static int hwsim_radios_generation = 1;
@ -3692,13 +3691,9 @@ static int __init init_mac80211_hwsim(void)
spin_lock_init(&hwsim_radio_lock);
hwsim_wq = alloc_workqueue("hwsim_wq", 0, 0);
if (!hwsim_wq)
return -ENOMEM;
err = rhashtable_init(&hwsim_radios_rht, &hwsim_rht_params);
if (err)
goto out_free_wq;
return err;
err = register_pernet_device(&hwsim_net_ops);
if (err)
@ -3829,8 +3824,6 @@ static int __init init_mac80211_hwsim(void)
unregister_pernet_device(&hwsim_net_ops);
out_free_rht:
rhashtable_destroy(&hwsim_radios_rht);
out_free_wq:
destroy_workqueue(hwsim_wq);
return err;
}
module_init(init_mac80211_hwsim);
@ -3842,12 +3835,10 @@ static void __exit exit_mac80211_hwsim(void)
hwsim_exit_netlink();
mac80211_hwsim_free();
flush_workqueue(hwsim_wq);
rhashtable_destroy(&hwsim_radios_rht);
unregister_netdev(hwsim_mon);
platform_driver_unregister(&mac80211_hwsim_driver);
unregister_pernet_device(&hwsim_net_ops);
destroy_workqueue(hwsim_wq);
}
module_exit(exit_mac80211_hwsim);