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A handful of fixes: 

* missing RCU grace period enforcement led to drivers freeing
    data structures before; fix from Dedy Lansky.
  * hwsim module init error paths were messed up; fixed it myself
    after a report from Colin King (who had sent a partial patch)
  * kernel-doc tag errors; fix from Luca Coelho
  * initialize the on-stack sinfo data structure when getting
    station information; fix from Sven Eckelmann
  * TXQ state dumping is now done from init, and when TXQs aren't
    initialized yet at that point, bad things happen, move the
    initialization; fix from Toke Høiland-Jørgensen.
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Merge tag 'mac80211-for-davem-2018-06-15' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211

Johannes Berg says:

====================
A handful of fixes:
 * missing RCU grace period enforcement led to drivers freeing
   data structures before; fix from Dedy Lansky.
 * hwsim module init error paths were messed up; fixed it myself
   after a report from Colin King (who had sent a partial patch)
 * kernel-doc tag errors; fix from Luca Coelho
 * initialize the on-stack sinfo data structure when getting
   station information; fix from Sven Eckelmann
 * TXQ state dumping is now done from init, and when TXQs aren't
   initialized yet at that point, bad things happen, move the
   initialization; fix from Toke Høiland-Jørgensen.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2018-06-15 09:08:26 -07:00
Родитель ab188e8f4a bf2b61a683
Коммит 41f9ba67f0
5 изменённых файлов: 32 добавлений и 22 удалений
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11
drivers/net/wireless/mac80211_hwsim.c
Просмотреть файл

@ -3572,11 +3572,14 @@ static int __init init_mac80211_hwsim(void)
hwsim_wq = alloc_workqueue("hwsim_wq", 0, 0);
if (!hwsim_wq)
return -ENOMEM;
rhashtable_init(&hwsim_radios_rht, &hwsim_rht_params);
err = rhashtable_init(&hwsim_radios_rht, &hwsim_rht_params);
if (err)
goto out_free_wq;
err = register_pernet_device(&hwsim_net_ops);
if (err)
return err;
goto out_free_rht;
err = platform_driver_register(&mac80211_hwsim_driver);
if (err)
@ -3701,6 +3704,10 @@ out_unregister_driver:
platform_driver_unregister(&mac80211_hwsim_driver);
out_unregister_pernet:
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);

28
include/uapi/linux/nl80211.h
Просмотреть файл

@ -981,18 +981,18 @@
* only the %NL80211_ATTR_IE data is used and updated with this command.
*
* @NL80211_CMD_SET_PMK: For offloaded 4-Way handshake, set the PMK or PMK-R0
* for the given authenticator address (specified with &NL80211_ATTR_MAC).
* When &NL80211_ATTR_PMKR0_NAME is set, &NL80211_ATTR_PMK specifies the
* for the given authenticator address (specified with %NL80211_ATTR_MAC).
* When %NL80211_ATTR_PMKR0_NAME is set, %NL80211_ATTR_PMK specifies the
* PMK-R0, otherwise it specifies the PMK.
* @NL80211_CMD_DEL_PMK: For offloaded 4-Way handshake, delete the previously
* configured PMK for the authenticator address identified by
* &NL80211_ATTR_MAC.
* %NL80211_ATTR_MAC.
* @NL80211_CMD_PORT_AUTHORIZED: An event that indicates that the 4 way
* handshake was completed successfully by the driver. The BSSID is
* specified with &NL80211_ATTR_MAC. Drivers that support 4 way handshake
* specified with %NL80211_ATTR_MAC. Drivers that support 4 way handshake
* offload should send this event after indicating 802.11 association with
* &NL80211_CMD_CONNECT or &NL80211_CMD_ROAM. If the 4 way handshake failed
* &NL80211_CMD_DISCONNECT should be indicated instead.
* %NL80211_CMD_CONNECT or %NL80211_CMD_ROAM. If the 4 way handshake failed
* %NL80211_CMD_DISCONNECT should be indicated instead.
*
* @NL80211_CMD_CONTROL_PORT_FRAME: Control Port (e.g. PAE) frame TX request
* and RX notification. This command is used both as a request to transmit
@ -1029,9 +1029,9 @@
* initiated the connection through the connect request.
*
* @NL80211_CMD_STA_OPMODE_CHANGED: An event that notify station's
* ht opmode or vht opmode changes using any of &NL80211_ATTR_SMPS_MODE,
* &NL80211_ATTR_CHANNEL_WIDTH,&NL80211_ATTR_NSS attributes with its
* address(specified in &NL80211_ATTR_MAC).
* ht opmode or vht opmode changes using any of %NL80211_ATTR_SMPS_MODE,
* %NL80211_ATTR_CHANNEL_WIDTH,%NL80211_ATTR_NSS attributes with its
* address(specified in %NL80211_ATTR_MAC).
*
* @NL80211_CMD_MAX: highest used command number
* @__NL80211_CMD_AFTER_LAST: internal use
@ -2218,7 +2218,7 @@ enum nl80211_commands {
* @NL80211_ATTR_EXTERNAL_AUTH_ACTION: Identify the requested external
* authentication operation (u32 attribute with an
* &enum nl80211_external_auth_action value). This is used with the
* &NL80211_CMD_EXTERNAL_AUTH request event.
* %NL80211_CMD_EXTERNAL_AUTH request event.
* @NL80211_ATTR_EXTERNAL_AUTH_SUPPORT: Flag attribute indicating that the user
* space supports external authentication. This attribute shall be used
* only with %NL80211_CMD_CONNECT request. The driver may offload
@ -3491,7 +3491,7 @@ enum nl80211_sched_scan_match_attr {
* @NL80211_RRF_AUTO_BW: maximum available bandwidth should be calculated
* base on contiguous rules and wider channels will be allowed to cross
* multiple contiguous/overlapping frequency ranges.
* @NL80211_RRF_IR_CONCURRENT: See &NL80211_FREQUENCY_ATTR_IR_CONCURRENT
* @NL80211_RRF_IR_CONCURRENT: See %NL80211_FREQUENCY_ATTR_IR_CONCURRENT
* @NL80211_RRF_NO_HT40MINUS: channels can't be used in HT40- operation
* @NL80211_RRF_NO_HT40PLUS: channels can't be used in HT40+ operation
* @NL80211_RRF_NO_80MHZ: 80MHz operation not allowed
@ -5643,11 +5643,11 @@ enum nl80211_nan_func_attributes {
* @NL80211_NAN_SRF_INCLUDE: present if the include bit of the SRF set.
* This is a flag.
* @NL80211_NAN_SRF_BF: Bloom Filter. Present if and only if
* &NL80211_NAN_SRF_MAC_ADDRS isn't present. This attribute is binary.
* %NL80211_NAN_SRF_MAC_ADDRS isn't present. This attribute is binary.
* @NL80211_NAN_SRF_BF_IDX: index of the Bloom Filter. Mandatory if
* &NL80211_NAN_SRF_BF is present. This is a u8.
* %NL80211_NAN_SRF_BF is present. This is a u8.
* @NL80211_NAN_SRF_MAC_ADDRS: list of MAC addresses for the SRF. Present if
* and only if &NL80211_NAN_SRF_BF isn't present. This is a nested
* and only if %NL80211_NAN_SRF_BF isn't present. This is a nested
* attribute. Each nested attribute is a MAC address.
* @NUM_NL80211_NAN_SRF_ATTR: internal
* @NL80211_NAN_SRF_ATTR_MAX: highest NAN SRF attribute

12
net/mac80211/main.c
Просмотреть файл

@ -1098,6 +1098,10 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
ieee80211_led_init(local);
result = ieee80211_txq_setup_flows(local);
if (result)
goto fail_flows;
rtnl_lock();
result = ieee80211_init_rate_ctrl_alg(local,
@ -1120,10 +1124,6 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
rtnl_unlock();
result = ieee80211_txq_setup_flows(local);
if (result)
goto fail_flows;
#ifdef CONFIG_INET
local->ifa_notifier.notifier_call = ieee80211_ifa_changed;
result = register_inetaddr_notifier(&local->ifa_notifier);
@ -1149,8 +1149,6 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
#if defined(CONFIG_INET) || defined(CONFIG_IPV6)
fail_ifa:
#endif
ieee80211_txq_teardown_flows(local);
fail_flows:
rtnl_lock();
rate_control_deinitialize(local);
ieee80211_remove_interfaces(local);
@ -1158,6 +1156,8 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
rtnl_unlock();
ieee80211_led_exit(local);
ieee80211_wep_free(local);
ieee80211_txq_teardown_flows(local);
fail_flows:
destroy_workqueue(local->workqueue);
fail_workqueue:
wiphy_unregister(local->hw.wiphy);

1
net/wireless/core.c
Просмотреть файл

@ -1012,6 +1012,7 @@ void cfg80211_unregister_wdev(struct wireless_dev *wdev)
nl80211_notify_iface(rdev, wdev, NL80211_CMD_DEL_INTERFACE);
list_del_rcu(&wdev->list);
synchronize_rcu();
rdev->devlist_generation++;
switch (wdev->iftype) {

2
net/wireless/util.c
Просмотреть файл

@ -1746,6 +1746,8 @@ int cfg80211_get_station(struct net_device *dev, const u8 *mac_addr,
if (!rdev->ops->get_station)
return -EOPNOTSUPP;
memset(sinfo, 0, sizeof(*sinfo));
return rdev_get_station(rdev, dev, mac_addr, sinfo);
}
EXPORT_SYMBOL(cfg80211_get_station);