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-rw-r--r--package/mac80211/patches/420-mac80211-hw-conf-change-flags.patch616
1 files changed, 616 insertions, 0 deletions
diff --git a/package/mac80211/patches/420-mac80211-hw-conf-change-flags.patch b/package/mac80211/patches/420-mac80211-hw-conf-change-flags.patch
new file mode 100644
index 000000000..4bae8cbb5
--- /dev/null
+++ b/package/mac80211/patches/420-mac80211-hw-conf-change-flags.patch
@@ -0,0 +1,616 @@
+Subject: mac80211: introduce hw config change flags
+
+This makes mac80211 notify the driver which configuration
+actually changed, e.g. channel etc.
+
+No driver changes, this is just plumbing, driver authors are
+expected to act on this if they want to.
+
+Also remove the HW CONFIG debug printk, it's incorrect, often
+we configure something else.
+
+Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
+---
+ drivers/net/wireless/adm8211.c | 3 +-
+ drivers/net/wireless/at76_usb.c | 3 +-
+ drivers/net/wireless/ath5k/base.c | 7 ++----
+ drivers/net/wireless/ath9k/main.c | 4 +--
+ drivers/net/wireless/b43/main.c | 3 +-
+ drivers/net/wireless/b43legacy/main.c | 3 +-
+ drivers/net/wireless/iwlwifi/iwl-agn.c | 3 +-
+ drivers/net/wireless/iwlwifi/iwl3945-base.c | 7 +++---
+ drivers/net/wireless/libertas_tf/main.c | 4 ++-
+ drivers/net/wireless/mac80211_hwsim.c | 4 +--
+ drivers/net/wireless/p54/p54common.c | 3 +-
+ drivers/net/wireless/rt2x00/rt2x00.h | 2 -
+ drivers/net/wireless/rt2x00/rt2x00dev.c | 2 -
+ drivers/net/wireless/rt2x00/rt2x00mac.c | 3 +-
+ drivers/net/wireless/rtl8180_dev.c | 3 +-
+ drivers/net/wireless/rtl8187_dev.c | 3 +-
+ drivers/net/wireless/zd1211rw/zd_mac.c | 4 ++-
+ include/net/mac80211.h | 30 +++++++++++++++++++++++-----
+ net/mac80211/cfg.c | 3 +-
+ net/mac80211/ieee80211_i.h | 2 -
+ net/mac80211/iface.c | 25 +++++++++++++++++------
+ net/mac80211/main.c | 29 ++++++++++++++-------------
+ net/mac80211/scan.c | 12 ++++++++---
+ net/mac80211/util.c | 3 +-
+ net/mac80211/wext.c | 14 ++++++-------
+ 25 files changed, 118 insertions(+), 61 deletions(-)
+
+--- a/include/net/mac80211.h
++++ b/include/net/mac80211.h
+@@ -464,12 +464,32 @@ static inline int __deprecated __IEEE802
+ #define IEEE80211_CONF_SHORT_SLOT_TIME (__IEEE80211_CONF_SHORT_SLOT_TIME())
+
+ /**
++ * enum ieee80211_conf_changed - denotes which configuration changed
++ *
++ * @IEEE80211_CONF_CHANGE_RADIO_ENABLED: the value of radio_enabled changed
++ * @IEEE80211_CONF_CHANGE_BEACON_INTERVAL: the beacon interval changed
++ * @IEEE80211_CONF_CHANGE_LISTEN_INTERVAL: the listen interval changed
++ * @IEEE80211_CONF_CHANGE_RADIOTAP: the radiotap flag changed
++ * @IEEE80211_CONF_CHANGE_PS: the PS flag changed
++ * @IEEE80211_CONF_CHANGE_POWER: the TX power changed
++ * @IEEE80211_CONF_CHANGE_CHANNEL: the channel changed
++ */
++enum ieee80211_conf_changed {
++ IEEE80211_CONF_CHANGE_RADIO_ENABLED = BIT(0),
++ IEEE80211_CONF_CHANGE_BEACON_INTERVAL = BIT(1),
++ IEEE80211_CONF_CHANGE_LISTEN_INTERVAL = BIT(2),
++ IEEE80211_CONF_CHANGE_RADIOTAP = BIT(3),
++ IEEE80211_CONF_CHANGE_PS = BIT(4),
++ IEEE80211_CONF_CHANGE_POWER = BIT(5),
++ IEEE80211_CONF_CHANGE_CHANNEL = BIT(6),
++};
++
++/**
+ * struct ieee80211_conf - configuration of the device
+ *
+ * This struct indicates how the driver shall configure the hardware.
+ *
+ * @radio_enabled: when zero, driver is required to switch off the radio.
+- * TODO make a flag
+ * @beacon_int: beacon interval (TODO make interface config)
+ * @listen_interval: listen interval in units of beacon interval
+ * @flags: configuration flags defined above
+@@ -479,13 +499,13 @@ static inline int __deprecated __IEEE802
+ * @channel: the channel to tune to
+ */
+ struct ieee80211_conf {
+- int radio_enabled;
+-
+ int beacon_int;
+- u16 listen_interval;
+ u32 flags;
+ int power_level;
+
++ u16 listen_interval;
++ bool radio_enabled;
++
+ struct ieee80211_channel *channel;
+
+ struct ieee80211_sta_ht_cap ht_cap;
+@@ -1213,7 +1233,7 @@ struct ieee80211_ops {
+ struct ieee80211_if_init_conf *conf);
+ void (*remove_interface)(struct ieee80211_hw *hw,
+ struct ieee80211_if_init_conf *conf);
+- int (*config)(struct ieee80211_hw *hw, struct ieee80211_conf *conf);
++ int (*config)(struct ieee80211_hw *hw, u32 changed);
+ int (*config_interface)(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_if_conf *conf);
+--- a/net/mac80211/cfg.c
++++ b/net/mac80211/cfg.c
+@@ -394,7 +394,8 @@ static int ieee80211_config_beacon(struc
+ */
+ if (params->interval) {
+ sdata->local->hw.conf.beacon_int = params->interval;
+- ieee80211_hw_config(sdata->local);
++ ieee80211_hw_config(sdata->local,
++ IEEE80211_CONF_CHANGE_BEACON_INTERVAL);
+ /*
+ * We updated some parameter so if below bails out
+ * it's not an error.
+--- a/net/mac80211/ieee80211_i.h
++++ b/net/mac80211/ieee80211_i.h
+@@ -880,7 +880,7 @@ static inline int ieee80211_bssid_match(
+ }
+
+
+-int ieee80211_hw_config(struct ieee80211_local *local);
++int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
+ int ieee80211_if_config(struct ieee80211_sub_if_data *sdata, u32 changed);
+ void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
+ void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
+--- a/net/mac80211/iface.c
++++ b/net/mac80211/iface.c
+@@ -65,7 +65,7 @@ static int ieee80211_open(struct net_dev
+ struct ieee80211_if_init_conf conf;
+ u32 changed = 0;
+ int res;
+- bool need_hw_reconfig = 0;
++ u32 hw_reconf_flags = 0;
+ u8 null_addr[ETH_ALEN] = {0};
+
+ /* fail early if user set an invalid address */
+@@ -152,7 +152,8 @@ static int ieee80211_open(struct net_dev
+ res = local->ops->start(local_to_hw(local));
+ if (res)
+ goto err_del_bss;
+- need_hw_reconfig = 1;
++ /* we're brought up, everything changes */
++ hw_reconf_flags = ~0;
+ ieee80211_led_radio(local, local->hw.conf.radio_enabled);
+ }
+
+@@ -198,8 +199,10 @@ static int ieee80211_open(struct net_dev
+
+ /* must be before the call to ieee80211_configure_filter */
+ local->monitors++;
+- if (local->monitors == 1)
++ if (local->monitors == 1) {
+ local->hw.conf.flags |= IEEE80211_CONF_RADIOTAP;
++ hw_reconf_flags |= IEEE80211_CONF_CHANGE_RADIOTAP;
++ }
+
+ if (sdata->u.mntr_flags & MONITOR_FLAG_FCSFAIL)
+ local->fif_fcsfail++;
+@@ -279,8 +282,8 @@ static int ieee80211_open(struct net_dev
+ atomic_inc(&local->iff_promiscs);
+
+ local->open_count++;
+- if (need_hw_reconfig) {
+- ieee80211_hw_config(local);
++ if (hw_reconf_flags) {
++ ieee80211_hw_config(local, hw_reconf_flags);
+ /*
+ * set default queue parameters so drivers don't
+ * need to initialise the hardware if the hardware
+@@ -322,6 +325,7 @@ static int ieee80211_stop(struct net_dev
+ struct ieee80211_local *local = sdata->local;
+ struct ieee80211_if_init_conf conf;
+ struct sta_info *sta;
++ u32 hw_reconf_flags = 0;
+
+ /*
+ * Stop TX on this interface first.
+@@ -405,8 +409,10 @@ static int ieee80211_stop(struct net_dev
+ }
+
+ local->monitors--;
+- if (local->monitors == 0)
++ if (local->monitors == 0) {
+ local->hw.conf.flags &= ~IEEE80211_CONF_RADIOTAP;
++ hw_reconf_flags |= IEEE80211_CONF_CHANGE_RADIOTAP;
++ }
+
+ if (sdata->u.mntr_flags & MONITOR_FLAG_FCSFAIL)
+ local->fif_fcsfail--;
+@@ -504,8 +510,15 @@ static int ieee80211_stop(struct net_dev
+
+ tasklet_disable(&local->tx_pending_tasklet);
+ tasklet_disable(&local->tasklet);
++
++ /* no reconfiguring after stop! */
++ hw_reconf_flags = 0;
+ }
+
++ /* do after stop to avoid reconfiguring when we stop anyway */
++ if (hw_reconf_flags)
++ ieee80211_hw_config(local, hw_reconf_flags);
++
+ return 0;
+ }
+
+--- a/net/mac80211/main.c
++++ b/net/mac80211/main.c
+@@ -197,31 +197,34 @@ int ieee80211_if_config(struct ieee80211
+ &sdata->vif, &conf);
+ }
+
+-int ieee80211_hw_config(struct ieee80211_local *local)
++int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
+ {
+ struct ieee80211_channel *chan;
+ int ret = 0;
++ int power;
+
+ if (local->sw_scanning)
+ chan = local->scan_channel;
+ else
+ chan = local->oper_channel;
+
+- local->hw.conf.channel = chan;
++ if (chan != local->hw.conf.channel) {
++ local->hw.conf.channel = chan;
++ changed |= IEEE80211_CONF_CHANGE_CHANNEL;
++ }
++
+
+ if (!local->hw.conf.power_level)
+- local->hw.conf.power_level = chan->max_power;
++ power = chan->max_power;
+ else
+- local->hw.conf.power_level = min(chan->max_power,
+- local->hw.conf.power_level);
+-
+-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+- printk(KERN_DEBUG "%s: HW CONFIG: freq=%d\n",
+- wiphy_name(local->hw.wiphy), chan->center_freq);
+-#endif
++ power = min(chan->max_power, local->hw.conf.power_level);
++ if (local->hw.conf.power_level != power) {
++ changed |= IEEE80211_CONF_CHANGE_POWER;
++ local->hw.conf.power_level = power;
++ }
+
+- if (local->open_count) {
+- ret = local->ops->config(local_to_hw(local), &local->hw.conf);
++ if (changed && local->open_count) {
++ ret = local->ops->config(local_to_hw(local), changed);
+ /*
+ * HW reconfiguration should never fail, the driver has told
+ * us what it can support so it should live up to that promise.
+@@ -672,7 +675,7 @@ struct ieee80211_hw *ieee80211_alloc_hw(
+ local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD;
+ local->short_retry_limit = 7;
+ local->long_retry_limit = 4;
+- local->hw.conf.radio_enabled = 1;
++ local->hw.conf.radio_enabled = true;
+
+ INIT_LIST_HEAD(&local->interfaces);
+
+--- a/net/mac80211/scan.c
++++ b/net/mac80211/scan.c
+@@ -447,12 +447,17 @@ void ieee80211_scan_completed(struct iee
+
+ if (local->hw_scanning) {
+ local->hw_scanning = false;
+- ieee80211_hw_config(local);
++ /*
++ * Somebody might have requested channel change during scan
++ * that we won't have acted upon, try now. ieee80211_hw_config
++ * will set the flag based on actual changes.
++ */
++ ieee80211_hw_config(local, 0);
+ goto done;
+ }
+
+ local->sw_scanning = false;
+- ieee80211_hw_config(local);
++ ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
+
+ netif_tx_lock_bh(local->mdev);
+ netif_addr_lock(local->mdev);
+@@ -539,7 +544,8 @@ void ieee80211_scan_work(struct work_str
+
+ if (!skip) {
+ local->scan_channel = chan;
+- if (ieee80211_hw_config(local))
++ if (ieee80211_hw_config(local,
++ IEEE80211_CONF_CHANGE_CHANNEL))
+ skip = 1;
+ }
+
+--- a/net/mac80211/util.c
++++ b/net/mac80211/util.c
+@@ -645,7 +645,8 @@ int ieee80211_set_freq(struct ieee80211_
+ if (local->sw_scanning || local->hw_scanning)
+ ret = 0;
+ else
+- ret = ieee80211_hw_config(local);
++ ret = ieee80211_hw_config(
++ local, IEEE80211_CONF_CHANGE_CHANNEL);
+
+ rate_control_clear(local);
+ }
+--- a/net/mac80211/wext.c
++++ b/net/mac80211/wext.c
+@@ -656,7 +656,7 @@ static int ieee80211_ioctl_siwtxpower(st
+ union iwreq_data *data, char *extra)
+ {
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+- bool need_reconfig = 0;
++ u32 reconf_flags = 0;
+ int new_power_level;
+
+ if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
+@@ -680,17 +680,17 @@ static int ieee80211_ioctl_siwtxpower(st
+
+ if (local->hw.conf.power_level != new_power_level) {
+ local->hw.conf.power_level = new_power_level;
+- need_reconfig = 1;
++ reconf_flags |= IEEE80211_CONF_CHANGE_POWER;
+ }
+
+ if (local->hw.conf.radio_enabled != !(data->txpower.disabled)) {
+ local->hw.conf.radio_enabled = !(data->txpower.disabled);
+- need_reconfig = 1;
++ reconf_flags |= IEEE80211_CONF_CHANGE_RADIO_ENABLED;
+ ieee80211_led_radio(local, local->hw.conf.radio_enabled);
+ }
+
+- if (need_reconfig)
+- ieee80211_hw_config(local);
++ if (reconf_flags)
++ ieee80211_hw_config(local, reconf_flags);
+
+ return 0;
+ }
+@@ -976,7 +976,7 @@ static int ieee80211_ioctl_siwpower(stru
+
+ if (wrq->disabled) {
+ conf->flags &= ~IEEE80211_CONF_PS;
+- return ieee80211_hw_config(local);
++ return ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
+ }
+
+ switch (wrq->flags & IW_POWER_MODE) {
+@@ -989,7 +989,7 @@ static int ieee80211_ioctl_siwpower(stru
+ return -EINVAL;
+ }
+
+- return ieee80211_hw_config(local);
++ return ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
+ }
+
+ static int ieee80211_ioctl_giwpower(struct net_device *dev,
+--- a/drivers/net/wireless/adm8211.c
++++ b/drivers/net/wireless/adm8211.c
+@@ -1314,9 +1314,10 @@ static int adm8211_set_ssid(struct ieee8
+ return 0;
+ }
+
+-static int adm8211_config(struct ieee80211_hw *dev, struct ieee80211_conf *conf)
++static int adm8211_config(struct ieee80211_hw *dev, u32 changed)
+ {
+ struct adm8211_priv *priv = dev->priv;
++ struct ieee80211_conf *conf = &dev->conf;
+ int channel = ieee80211_frequency_to_channel(conf->channel->center_freq);
+
+ if (channel != priv->channel) {
+--- a/drivers/net/wireless/at76_usb.c
++++ b/drivers/net/wireless/at76_usb.c
+@@ -2057,9 +2057,10 @@ exit:
+ return 0;
+ }
+
+-static int at76_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf)
++static int at76_config(struct ieee80211_hw *hw, u32 changed)
+ {
+ struct at76_priv *priv = hw->priv;
++ struct ieee80211_conf *conf = &hw->conf;
+
+ at76_dbg(DBG_MAC80211, "%s(): channel %d radio %d",
+ __func__, conf->channel->hw_value, conf->radio_enabled);
+--- a/drivers/net/wireless/ath5k/base.c
++++ b/drivers/net/wireless/ath5k/base.c
+@@ -219,8 +219,7 @@ static int ath5k_add_interface(struct ie
+ struct ieee80211_if_init_conf *conf);
+ static void ath5k_remove_interface(struct ieee80211_hw *hw,
+ struct ieee80211_if_init_conf *conf);
+-static int ath5k_config(struct ieee80211_hw *hw,
+- struct ieee80211_conf *conf);
++static int ath5k_config(struct ieee80211_hw *hw, u32 changed);
+ static int ath5k_config_interface(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_if_conf *conf);
+@@ -2767,10 +2766,10 @@ end:
+ * TODO: Phy disable/diversity etc
+ */
+ static int
+-ath5k_config(struct ieee80211_hw *hw,
+- struct ieee80211_conf *conf)
++ath5k_config(struct ieee80211_hw *hw, u32 changed)
+ {
+ struct ath5k_softc *sc = hw->priv;
++ struct ieee80211_conf *conf = &hw->conf;
+
+ sc->bintval = conf->beacon_int;
+ sc->power_level = conf->power_level;
+--- a/drivers/net/wireless/ath9k/main.c
++++ b/drivers/net/wireless/ath9k/main.c
+@@ -1231,11 +1231,11 @@ static void ath9k_remove_interface(struc
+ __func__, error);
+ }
+
+-static int ath9k_config(struct ieee80211_hw *hw,
+- struct ieee80211_conf *conf)
++static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
+ {
+ struct ath_softc *sc = hw->priv;
+ struct ieee80211_channel *curchan = hw->conf.channel;
++ struct ieee80211_conf *conf = &hw->conf;
+ int pos;
+
+ DPRINTF(sc, ATH_DBG_CONFIG, "%s: Set channel: %d MHz\n",
+--- a/drivers/net/wireless/b43/main.c
++++ b/drivers/net/wireless/b43/main.c
+@@ -3320,11 +3320,12 @@ init_failure:
+ return err;
+ }
+
+-static int b43_op_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf)
++static int b43_op_config(struct ieee80211_hw *hw, u32 changed)
+ {
+ struct b43_wl *wl = hw_to_b43_wl(hw);
+ struct b43_wldev *dev;
+ struct b43_phy *phy;
++ struct ieee80211_conf *conf = &hw->conf;
+ unsigned long flags;
+ int antenna;
+ int err = 0;
+--- a/drivers/net/wireless/b43legacy/main.c
++++ b/drivers/net/wireless/b43legacy/main.c
+@@ -2557,11 +2557,12 @@ init_failure:
+ }
+
+ static int b43legacy_op_dev_config(struct ieee80211_hw *hw,
+- struct ieee80211_conf *conf)
++ u32 changed)
+ {
+ struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
+ struct b43legacy_wldev *dev;
+ struct b43legacy_phy *phy;
++ struct ieee80211_conf *conf = &hw->conf;
+ unsigned long flags;
+ unsigned int new_phymode = 0xFFFF;
+ int antenna_tx;
+--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
++++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
+@@ -2760,10 +2760,11 @@ static int iwl4965_mac_add_interface(str
+ * be set inappropriately and the driver currently sets the hardware up to
+ * use it whenever needed.
+ */
+-static int iwl4965_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf)
++static int iwl4965_mac_config(struct ieee80211_hw *hw, u32 changed)
+ {
+ struct iwl_priv *priv = hw->priv;
+ const struct iwl_channel_info *ch_info;
++ struct ieee80211_conf *conf = &hw->conf;
+ unsigned long flags;
+ int ret = 0;
+ u16 channel;
+--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
++++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
+@@ -6427,7 +6427,7 @@ static void iwl3945_bg_abort_scan(struct
+ mutex_unlock(&priv->mutex);
+ }
+
+-static int iwl3945_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf);
++static int iwl3945_mac_config(struct ieee80211_hw *hw, u32 changed);
+
+ static void iwl3945_bg_scan_completed(struct work_struct *work)
+ {
+@@ -6440,7 +6440,7 @@ static void iwl3945_bg_scan_completed(st
+ return;
+
+ if (test_bit(STATUS_CONF_PENDING, &priv->status))
+- iwl3945_mac_config(priv->hw, ieee80211_get_hw_conf(priv->hw));
++ iwl3945_mac_config(priv->hw, 0);
+
+ ieee80211_scan_completed(priv->hw);
+
+@@ -6629,10 +6629,11 @@ static int iwl3945_mac_add_interface(str
+ * be set inappropriately and the driver currently sets the hardware up to
+ * use it whenever needed.
+ */
+-static int iwl3945_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf)
++static int iwl3945_mac_config(struct ieee80211_hw *hw, u32 changed)
+ {
+ struct iwl3945_priv *priv = hw->priv;
+ const struct iwl3945_channel_info *ch_info;
++ struct ieee80211_conf *conf = &hw->conf;
+ unsigned long flags;
+ int ret = 0;
+
+--- a/drivers/net/wireless/mac80211_hwsim.c
++++ b/drivers/net/wireless/mac80211_hwsim.c
+@@ -361,10 +361,10 @@ static void mac80211_hwsim_beacon(unsign
+ }
+
+
+-static int mac80211_hwsim_config(struct ieee80211_hw *hw,
+- struct ieee80211_conf *conf)
++static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
+ {
+ struct mac80211_hwsim_data *data = hw->priv;
++ struct ieee80211_conf *conf = &hw->conf;
+
+ printk(KERN_DEBUG "%s:%s (freq=%d radio_enabled=%d beacon_int=%d)\n",
+ wiphy_name(hw->wiphy), __func__,
+--- a/drivers/net/wireless/p54/p54common.c
++++ b/drivers/net/wireless/p54/p54common.c
+@@ -1205,10 +1205,11 @@ static void p54_remove_interface(struct
+ p54_set_filter(dev, 0, NULL);
+ }
+
+-static int p54_config(struct ieee80211_hw *dev, struct ieee80211_conf *conf)
++static int p54_config(struct ieee80211_hw *dev, u32 changed)
+ {
+ int ret;
+ struct p54_common *priv = dev->priv;
++ struct ieee80211_conf *conf = &dev->conf;
+
+ mutex_lock(&priv->conf_mutex);
+ priv->rx_antenna = 2; /* automatic */
+--- a/drivers/net/wireless/rt2x00/rt2x00.h
++++ b/drivers/net/wireless/rt2x00/rt2x00.h
+@@ -997,7 +997,7 @@ int rt2x00mac_add_interface(struct ieee8
+ struct ieee80211_if_init_conf *conf);
+ void rt2x00mac_remove_interface(struct ieee80211_hw *hw,
+ struct ieee80211_if_init_conf *conf);
+-int rt2x00mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf);
++int rt2x00mac_config(struct ieee80211_hw *hw, u32 changed);
+ int rt2x00mac_config_interface(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_if_conf *conf);
+--- a/drivers/net/wireless/rt2x00/rt2x00mac.c
++++ b/drivers/net/wireless/rt2x00/rt2x00mac.c
+@@ -335,9 +335,10 @@ void rt2x00mac_remove_interface(struct i
+ }
+ EXPORT_SYMBOL_GPL(rt2x00mac_remove_interface);
+
+-int rt2x00mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf)
++int rt2x00mac_config(struct ieee80211_hw *hw, u32 changed)
+ {
+ struct rt2x00_dev *rt2x00dev = hw->priv;
++ struct ieee80211_conf *conf = &hw->conf;
+ int radio_on;
+ int status;
+
+--- a/drivers/net/wireless/rtl8180_dev.c
++++ b/drivers/net/wireless/rtl8180_dev.c
+@@ -692,9 +692,10 @@ static void rtl8180_remove_interface(str
+ priv->vif = NULL;
+ }
+
+-static int rtl8180_config(struct ieee80211_hw *dev, struct ieee80211_conf *conf)
++static int rtl8180_config(struct ieee80211_hw *dev, u32 changed)
+ {
+ struct rtl8180_priv *priv = dev->priv;
++ struct ieee80211_conf *conf = &dev->conf;
+
+ priv->rf->set_chan(dev, conf);
+
+--- a/drivers/net/wireless/rtl8187_dev.c
++++ b/drivers/net/wireless/rtl8187_dev.c
+@@ -870,9 +870,10 @@ static void rtl8187_remove_interface(str
+ mutex_unlock(&priv->conf_mutex);
+ }
+
+-static int rtl8187_config(struct ieee80211_hw *dev, struct ieee80211_conf *conf)
++static int rtl8187_config(struct ieee80211_hw *dev, u32 changed)
+ {
+ struct rtl8187_priv *priv = dev->priv;
++ struct ieee80211_conf *conf = &dev->conf;
+ u32 reg;
+
+ mutex_lock(&priv->conf_mutex);
+--- a/drivers/net/wireless/zd1211rw/zd_mac.c
++++ b/drivers/net/wireless/zd1211rw/zd_mac.c
+@@ -743,9 +743,11 @@ static void zd_op_remove_interface(struc
+ zd_write_mac_addr(&mac->chip, NULL);
+ }
+
+-static int zd_op_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf)
++static int zd_op_config(struct ieee80211_hw *hw, u32 changed)
+ {
+ struct zd_mac *mac = zd_hw_mac(hw);
++ struct ieee80211_conf *conf = &hw->conf;
++
+ return zd_chip_set_channel(&mac->chip, conf->channel->hw_value);
+ }
+
+--- a/drivers/net/wireless/rt2x00/rt2x00dev.c
++++ b/drivers/net/wireless/rt2x00/rt2x00dev.c
+@@ -1245,7 +1245,7 @@ int rt2x00lib_resume(struct rt2x00_dev *
+ /*
+ * Reconfigure device.
+ */
+- retval = rt2x00mac_config(rt2x00dev->hw, &rt2x00dev->hw->conf);
++ retval = rt2x00mac_config(rt2x00dev->hw, ~0);
+ if (retval)
+ goto exit;
+