From 4d51e149a6231ea9cc210795cbc358a7c9a8e016 Mon Sep 17 00:00:00 2001 From: Ben Greear Date: Mon, 7 Feb 2011 13:44:34 -0800 Subject: mac80211: Properly set work-item channel-type. Some were indirectly set to NO_HT (zero), but I think it's better to explicitly set it in case the enum ever changes. In cfg.c, it seems the channel-type was just ignored (and thus always set to NO_HT). Signed-off-by: Ben Greear Signed-off-by: John W. Linville --- net/mac80211/cfg.c | 1 + net/mac80211/mlme.c | 2 ++ 2 files changed, 3 insertions(+) (limited to 'net/mac80211') diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 845c76d..f7a1f08 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -1862,6 +1862,7 @@ static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct net_device *dev, wk->type = IEEE80211_WORK_OFFCHANNEL_TX; wk->chan = chan; + wk->chan_type = channel_type; wk->sdata = sdata; wk->done = ieee80211_offchan_tx_done; wk->offchan_tx.frame = skb; diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index f77adf1..d89e878 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -2294,6 +2294,7 @@ int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata, else wk->type = IEEE80211_WORK_DIRECT_PROBE; wk->chan = req->bss->channel; + wk->chan_type = NL80211_CHAN_NO_HT; wk->sdata = sdata; wk->done = ieee80211_probe_auth_done; @@ -2443,6 +2444,7 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, memcpy(wk->assoc.prev_bssid, req->prev_bssid, ETH_ALEN); wk->chan = req->bss->channel; + wk->chan_type = NL80211_CHAN_NO_HT; wk->sdata = sdata; wk->done = ieee80211_assoc_done; if (!bss->dtim_period && -- cgit v1.1 From 4f2e9d91f84ce39698517203974ffc2bcc32a21d Mon Sep 17 00:00:00 2001 From: Ben Greear Date: Mon, 7 Feb 2011 13:44:35 -0800 Subject: mac80211: Allow scanning on existing channel-type. Previous code set the channel type to NO_HT, but it appears that NO_HT packets can be sent on any channel type, so we do not need to change the channel type as long as the channel is correct. Signed-off-by: Ben Greear Signed-off-by: John W. Linville --- net/mac80211/main.c | 16 ++++++++++++++-- net/mac80211/scan.c | 6 ++---- 2 files changed, 16 insertions(+), 6 deletions(-) (limited to 'net/mac80211') diff --git a/net/mac80211/main.c b/net/mac80211/main.c index c155c0b..86562ce 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -112,7 +112,13 @@ bool ieee80211_cfg_on_oper_channel(struct ieee80211_local *local) /* This logic needs to match logic in ieee80211_hw_config */ if (local->scan_channel) { chan = local->scan_channel; - channel_type = NL80211_CHAN_NO_HT; + /* If scanning on oper channel, use whatever channel-type + * is currently in use. + */ + if (chan == local->oper_channel) + channel_type = local->_oper_channel_type; + else + channel_type = NL80211_CHAN_NO_HT; } else if (local->tmp_channel) { chan = scan_chan = local->tmp_channel; channel_type = local->tmp_channel_type; @@ -151,7 +157,13 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed) offchannel_flag = local->hw.conf.flags & IEEE80211_CONF_OFFCHANNEL; if (scan_chan) { chan = scan_chan; - channel_type = NL80211_CHAN_NO_HT; + /* If scanning on oper channel, use whatever channel-type + * is currently in use. + */ + if (chan == local->oper_channel) + channel_type = local->_oper_channel_type; + else + channel_type = NL80211_CHAN_NO_HT; } else if (local->tmp_channel) { chan = scan_chan = local->tmp_channel; channel_type = local->tmp_channel_type; diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c index 0ea6ada..0e70d7a 100644 --- a/net/mac80211/scan.c +++ b/net/mac80211/scan.c @@ -517,8 +517,7 @@ static void ieee80211_scan_state_decision(struct ieee80211_local *local, if (ieee80211_cfg_on_oper_channel(local)) { /* We're currently on operating channel. */ - if ((next_chan == local->oper_channel) && - (local->_oper_channel_type == NL80211_CHAN_NO_HT)) + if (next_chan == local->oper_channel) /* We don't need to move off of operating channel. */ local->next_scan_state = SCAN_SET_CHANNEL; else @@ -620,8 +619,7 @@ static void ieee80211_scan_state_set_channel(struct ieee80211_local *local, local->scan_channel = chan; /* Only call hw-config if we really need to change channels. */ - if ((chan != local->hw.conf.channel) || - (local->hw.conf.channel_type != NL80211_CHAN_NO_HT)) + if (chan != local->hw.conf.channel) if (ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL)) skip = 1; -- cgit v1.1 From da2fd1f0f7b78f21f6378f726d1f6de9d573b2d4 Mon Sep 17 00:00:00 2001 From: Ben Greear Date: Mon, 7 Feb 2011 13:44:36 -0800 Subject: mac80211: Allow work items to use existing channel type. Narrow channel types can function within larger channel types. So, use existing channel type for work items when possible. This decreases hardware channel changes significantly when using non NO_HT channel types on the operating channel. Signed-off-by: Ben Greear Signed-off-by: John W. Linville --- net/mac80211/work.c | 53 ++++++++++++++++++++++++++++++++++++++++++++++++++--- 1 file changed, 50 insertions(+), 3 deletions(-) (limited to 'net/mac80211') diff --git a/net/mac80211/work.c b/net/mac80211/work.c index 6bf787a..64f2b28 100644 --- a/net/mac80211/work.c +++ b/net/mac80211/work.c @@ -874,6 +874,44 @@ static void ieee80211_work_rx_queued_mgmt(struct ieee80211_local *local, kfree_skb(skb); } +static bool ieee80211_work_ct_coexists(enum nl80211_channel_type wk_ct, + enum nl80211_channel_type oper_ct) +{ + switch (wk_ct) { + case NL80211_CHAN_NO_HT: + return true; + case NL80211_CHAN_HT20: + if (oper_ct != NL80211_CHAN_NO_HT) + return true; + return false; + case NL80211_CHAN_HT40MINUS: + case NL80211_CHAN_HT40PLUS: + return (wk_ct == oper_ct); + } + WARN_ON(1); /* shouldn't get here */ + return false; +} + +static enum nl80211_channel_type +ieee80211_calc_ct(enum nl80211_channel_type wk_ct, + enum nl80211_channel_type oper_ct) +{ + switch (wk_ct) { + case NL80211_CHAN_NO_HT: + return oper_ct; + case NL80211_CHAN_HT20: + if (oper_ct != NL80211_CHAN_NO_HT) + return oper_ct; + return wk_ct; + case NL80211_CHAN_HT40MINUS: + case NL80211_CHAN_HT40PLUS: + return wk_ct; + } + WARN_ON(1); /* shouldn't get here */ + return wk_ct; +} + + static void ieee80211_work_timer(unsigned long data) { struct ieee80211_local *local = (void *) data; @@ -927,14 +965,22 @@ static void ieee80211_work_work(struct work_struct *work) bool on_oper_chan; bool tmp_chan_changed = false; bool on_oper_chan2; + enum nl80211_channel_type wk_ct; on_oper_chan = ieee80211_cfg_on_oper_channel(local); + + /* Work with existing channel type if possible. */ + wk_ct = wk->chan_type; + if (wk->chan == local->hw.conf.channel) + wk_ct = ieee80211_calc_ct(wk->chan_type, + local->hw.conf.channel_type); + if (local->tmp_channel) if ((local->tmp_channel != wk->chan) || - (local->tmp_channel_type != wk->chan_type)) + (local->tmp_channel_type != wk_ct)) tmp_chan_changed = true; local->tmp_channel = wk->chan; - local->tmp_channel_type = wk->chan_type; + local->tmp_channel_type = wk_ct; /* * Leave the station vifs in awake mode if they * happen to be on the same channel as @@ -1031,7 +1077,8 @@ static void ieee80211_work_work(struct work_struct *work) continue; if (wk->chan != local->tmp_channel) continue; - if (wk->chan_type != local->tmp_channel_type) + if (ieee80211_work_ct_coexists(wk->chan_type, + local->tmp_channel_type)) continue; remain_off_channel = true; } -- cgit v1.1 From 59bdf3b0fe7a183f18ce94696259c4c76abb4568 Mon Sep 17 00:00:00 2001 From: Ben Greear Date: Mon, 7 Feb 2011 13:44:38 -0800 Subject: mac80211: Ensure power-level set properly for scanning. My previous patch to optimize scanning on operating channel accidentally removed the code that would ensure power was set to maximum for scanning. This patch re-adds that functionality. Signed-off-by: Ben Greear Signed-off-by: John W. Linville --- net/mac80211/main.c | 3 ++- net/mac80211/scan.c | 9 ++++++++- 2 files changed, 10 insertions(+), 2 deletions(-) (limited to 'net/mac80211') diff --git a/net/mac80211/main.c b/net/mac80211/main.c index 86562ce..e7eb2cf 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -199,7 +199,8 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed) changed |= IEEE80211_CONF_CHANGE_SMPS; } - if (scan_chan) + if ((local->scanning & SCAN_SW_SCANNING) || + (local->scanning & SCAN_HW_SCANNING)) power = chan->max_power; else power = local->power_constr_level ? diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c index 0e70d7a..8429545 100644 --- a/net/mac80211/scan.c +++ b/net/mac80211/scan.c @@ -307,11 +307,15 @@ static void __ieee80211_scan_completed_finish(struct ieee80211_hw *hw, mutex_lock(&local->mtx); on_oper_chan = ieee80211_cfg_on_oper_channel(local); + WARN_ON(local->scanning & (SCAN_SW_SCANNING | SCAN_HW_SCANNING)); + if (was_hw_scan || !on_oper_chan) { if (WARN_ON(local->scan_channel)) local->scan_channel = NULL; ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL); - } + } else + /* Set power back to normal operating levels. */ + ieee80211_hw_config(local, 0); if (!was_hw_scan) { bool on_oper_chan2; @@ -377,6 +381,9 @@ static int ieee80211_start_sw_scan(struct ieee80211_local *local) ieee80211_configure_filter(local); + /* We need to set power level at maximum rate for scanning. */ + ieee80211_hw_config(local, 0); + ieee80211_queue_delayed_work(&local->hw, &local->scan_work, IEEE80211_CHANNEL_TIME); -- cgit v1.1 From 0c2530cec5672f38f8ab834ee53d17175d3bca95 Mon Sep 17 00:00:00 2001 From: Helmut Schaa Date: Sat, 12 Feb 2011 14:17:15 +0100 Subject: mac80211: Remove superfluous if clause ieee80211_rx_h_check returned RX_DROP_MONITOR in case the if statement in question was true but the same return value is also used directly after the if clause. Hence, we can just drop the whole if clause and as such simplify the code. Signed-off-by: Helmut Schaa Signed-off-by: John W. Linville --- net/mac80211/rx.c | 12 +----------- 1 file changed, 1 insertion(+), 11 deletions(-) (limited to 'net/mac80211') diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 045b2fe..f502634 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -832,18 +832,8 @@ ieee80211_rx_h_check(struct ieee80211_rx_data *rx) ieee80211_is_pspoll(hdr->frame_control)) && rx->sdata->vif.type != NL80211_IFTYPE_ADHOC && rx->sdata->vif.type != NL80211_IFTYPE_WDS && - (!rx->sta || !test_sta_flags(rx->sta, WLAN_STA_ASSOC)))) { - if ((!ieee80211_has_fromds(hdr->frame_control) && - !ieee80211_has_tods(hdr->frame_control) && - ieee80211_is_data(hdr->frame_control)) || - !(status->rx_flags & IEEE80211_RX_RA_MATCH)) { - /* Drop IBSS frames and frames for other hosts - * silently. */ - return RX_DROP_MONITOR; - } - + (!rx->sta || !test_sta_flags(rx->sta, WLAN_STA_ASSOC)))) return RX_DROP_MONITOR; - } return RX_CONTINUE; } -- cgit v1.1 From c269a20393500e84e8cbae23ca6d65e1107433c4 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Mon, 14 Feb 2011 12:20:22 +0100 Subject: mac80211: reply to directed probes in IBSS WFA certification and the WMM spec require that we always reply to unicast probe requests, so do that. Signed-off-by: Johannes Berg Signed-off-by: John W. Linville --- net/mac80211/ibss.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) (limited to 'net/mac80211') diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c index 775fb63..a42aa61 100644 --- a/net/mac80211/ibss.c +++ b/net/mac80211/ibss.c @@ -664,12 +664,13 @@ static void ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata) } static void ieee80211_rx_mgmt_probe_req(struct ieee80211_sub_if_data *sdata, - struct ieee80211_mgmt *mgmt, - size_t len) + struct sk_buff *req) { + struct ieee80211_rx_status *rx_status = IEEE80211_SKB_RXCB(req); + struct ieee80211_mgmt *mgmt = (void *)req->data; struct ieee80211_if_ibss *ifibss = &sdata->u.ibss; struct ieee80211_local *local = sdata->local; - int tx_last_beacon; + int tx_last_beacon, len = req->len; struct sk_buff *skb; struct ieee80211_mgmt *resp; u8 *pos, *end; @@ -689,7 +690,7 @@ static void ieee80211_rx_mgmt_probe_req(struct ieee80211_sub_if_data *sdata, mgmt->bssid, tx_last_beacon); #endif /* CONFIG_MAC80211_IBSS_DEBUG */ - if (!tx_last_beacon) + if (!tx_last_beacon && !(rx_status->rx_flags & IEEE80211_RX_RA_MATCH)) return; if (memcmp(mgmt->bssid, ifibss->bssid, ETH_ALEN) != 0 && @@ -786,7 +787,7 @@ void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, switch (fc & IEEE80211_FCTL_STYPE) { case IEEE80211_STYPE_PROBE_REQ: - ieee80211_rx_mgmt_probe_req(sdata, mgmt, skb->len); + ieee80211_rx_mgmt_probe_req(sdata, skb); break; case IEEE80211_STYPE_PROBE_RESP: ieee80211_rx_mgmt_probe_resp(sdata, mgmt, skb->len, -- cgit v1.1 From 05e7c99136554789e4cc060a63334ccaa08ad62d Mon Sep 17 00:00:00 2001 From: Stanislaw Gruszka Date: Fri, 18 Feb 2011 09:05:08 +0100 Subject: mac80211: fix conn_mon_timer running after disassociate Low level driver could pass rx frames to us after disassociate, what can lead to run conn_mon_timer by ieee80211_sta_rx_notify(). That is obviously wrong, but nothing happens until we unload modules and resources are used after free. If kernel debugging is enabled following warning could be observed: WARNING: at lib/debugobjects.c:259 debug_print_object+0x65/0x70() Hardware name: HP xw8600 Workstation ODEBUG: free active (active state 0) object type: timer_list Modules linked in: iwlagn(-) iwlcore mac80211 cfg80211 aes_x86_64 aes_generic fuse cpufreq_ondemand acpi_cpufreq freq_table mperf xt_physdev ipt_REJECT nf_conntrack_ipv4 nf_defrag_ipv4 iptable_filter ip_tables ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 xt_state nf_conntrack ip6table_filter ip6_tables ipv6 ext3 jbd dm_mirror dm_region_hash dm_log dm_mod uinput hp_wmi sparse_keymap sg wmi arc4 microcode serio_raw ecb tg3 shpchp rfkill ext4 mbcache jbd2 sr_mod cdrom sd_mod crc_t10dif firewire_ohci firewire_core crc_itu_t mptsas mptscsih mptbase scsi_transport_sas ahci libahci pata_acpi ata_generic ata_piix floppy nouveau ttm drm_kms_helper drm i2c_algo_bit i2c_core video [last unloaded: cfg80211] Pid: 13827, comm: rmmod Tainted: G W 2.6.38-rc4-wl+ #22 Call Trace: [] ? warn_slowpath_common+0x7f/0xc0 [] ? warn_slowpath_fmt+0x46/0x50 [] ? debug_print_object+0x65/0x70 [] ? debug_check_no_obj_freed+0x125/0x210 [] ? debug_check_no_locks_freed+0xf7/0x170 [] ? kfree+0xc2/0x2f0 [] ? netdev_release+0x45/0x60 [] ? device_release+0x27/0xa0 [] ? kobject_release+0x8d/0x1a0 [] ? kobject_release+0x0/0x1a0 [] ? kref_put+0x37/0x70 [] ? kobject_put+0x27/0x60 [] ? netdev_run_todo+0x1ab/0x270 [] ? rtnl_unlock+0xe/0x10 [] ? ieee80211_unregister_hw+0x58/0x120 [mac80211] [] ? iwl_pci_remove+0xdb/0x22a [iwlagn] [] ? pci_device_remove+0x52/0x120 [] ? __device_release_driver+0x75/0xe0 [] ? driver_detach+0xd8/0xe0 [] ? bus_remove_driver+0x91/0x100 [] ? driver_unregister+0x62/0xa0 [] ? pci_unregister_driver+0x44/0xa0 [] ? iwl_exit+0x15/0x1c [iwlagn] [] ? sys_delete_module+0x1a2/0x270 [] ? trace_hardirqs_on_thunk+0x3a/0x3f [] ? system_call_fastpath+0x16/0x1b Acked-by: Johannes Berg Signed-off-by: Stanislaw Gruszka Signed-off-by: John W. Linville --- net/mac80211/mlme.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'net/mac80211') diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 45fbb9e..c9ceb4d 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -1033,6 +1033,12 @@ void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata, if (is_multicast_ether_addr(hdr->addr1)) return; + /* + * In case we receive frames after disassociation. + */ + if (!sdata->u.mgd.associated) + return; + ieee80211_sta_reset_conn_monitor(sdata); } -- cgit v1.1 From 83bdf2a17279bd6ee3d0f5c0f086ebe06644109d Mon Sep 17 00:00:00 2001 From: Ben Greear Date: Tue, 15 Feb 2011 13:11:22 -0800 Subject: mac80211: Add power to debugfs. Signed-off-by: Ben Greear Signed-off-by: John W. Linville --- net/mac80211/debugfs.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'net/mac80211') diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c index 1f02e59..51f0d78 100644 --- a/net/mac80211/debugfs.c +++ b/net/mac80211/debugfs.c @@ -60,6 +60,10 @@ static const struct file_operations name## _ops = { \ debugfs_create_file(#name, mode, phyd, local, &name## _ops); +DEBUGFS_READONLY_FILE(user_power, "%d", + local->user_power_level); +DEBUGFS_READONLY_FILE(power, "%d", + local->hw.conf.power_level); DEBUGFS_READONLY_FILE(frequency, "%d", local->hw.conf.channel->center_freq); DEBUGFS_READONLY_FILE(total_ps_buffered, "%d", @@ -391,6 +395,8 @@ void debugfs_hw_add(struct ieee80211_local *local) DEBUGFS_ADD(uapsd_queues); DEBUGFS_ADD(uapsd_max_sp_len); DEBUGFS_ADD(channel_type); + DEBUGFS_ADD(user_power); + DEBUGFS_ADD(power); statsd = debugfs_create_dir("statistics", phyd); -- cgit v1.1 From 8ba0537c620ad9f37b0e810ce0a9ff367a021f5e Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Wed, 16 Feb 2011 08:46:58 +0100 Subject: mac80211: fix 2.4 GHz 40 MHz disabling The module parameter ieee80211_disable_40mhz_24ghz was meant to allow disabling 40 MHz operation in the 2.4 GHz band by default. However, it is buggy as implemented because while it advertises to the AP that the device doesn't support 40 MHz, it will itself still use 40 MHz configurations. To fix this, clear the 40 MHz bits from the sband completely instead of overriding where used. Signed-off-by: Johannes Berg Signed-off-by: John W. Linville --- net/mac80211/ieee80211_i.h | 2 -- net/mac80211/main.c | 14 +++++++++++++- net/mac80211/util.c | 6 ------ net/mac80211/work.c | 6 ------ 4 files changed, 13 insertions(+), 15 deletions(-) (limited to 'net/mac80211') diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 44eea1a..bb63878 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -1066,8 +1066,6 @@ void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, void ieee80211_configure_filter(struct ieee80211_local *local); u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata); -extern bool ieee80211_disable_40mhz_24ghz; - /* STA code */ void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata); int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata, diff --git a/net/mac80211/main.c b/net/mac80211/main.c index e7eb2cf..2543e48 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -34,7 +34,7 @@ #include "debugfs.h" -bool ieee80211_disable_40mhz_24ghz; +static bool ieee80211_disable_40mhz_24ghz; module_param(ieee80211_disable_40mhz_24ghz, bool, 0644); MODULE_PARM_DESC(ieee80211_disable_40mhz_24ghz, "Disable 40MHz support in the 2.4GHz band"); @@ -723,6 +723,18 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) } channels += sband->n_channels; + /* + * Since ieee80211_disable_40mhz_24ghz is global, we can + * modify the sband's ht data even if the driver uses a + * global structure for that. + */ + if (ieee80211_disable_40mhz_24ghz && + band == IEEE80211_BAND_2GHZ && + sband->ht_cap.ht_supported) { + sband->ht_cap.cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; + sband->ht_cap.cap &= ~IEEE80211_HT_CAP_SGI_40; + } + if (max_bitrates < sband->n_bitrates) max_bitrates = sband->n_bitrates; supp_ht = supp_ht || sband->ht_cap.ht_supported; diff --git a/net/mac80211/util.c b/net/mac80211/util.c index cf68700..26fd5d2 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -986,12 +986,6 @@ int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer, u16 cap = sband->ht_cap.cap; __le16 tmp; - if (ieee80211_disable_40mhz_24ghz && - sband->band == IEEE80211_BAND_2GHZ) { - cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; - cap &= ~IEEE80211_HT_CAP_SGI_40; - } - *pos++ = WLAN_EID_HT_CAPABILITY; *pos++ = sizeof(struct ieee80211_ht_cap); memset(pos, 0, sizeof(struct ieee80211_ht_cap)); diff --git a/net/mac80211/work.c b/net/mac80211/work.c index 64f2b28..204f0a4 100644 --- a/net/mac80211/work.c +++ b/net/mac80211/work.c @@ -126,12 +126,6 @@ static void ieee80211_add_ht_ie(struct sk_buff *skb, const u8 *ht_info_ie, /* determine capability flags */ - if (ieee80211_disable_40mhz_24ghz && - sband->band == IEEE80211_BAND_2GHZ) { - cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; - cap &= ~IEEE80211_HT_CAP_SGI_40; - } - switch (ht_info->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) { case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: if (flags & IEEE80211_CHAN_NO_HT40PLUS) { -- cgit v1.1 From 540005c7fc787c211967148f7229f43db1eead38 Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Thu, 17 Feb 2011 13:36:19 +0000 Subject: small adjustment to net/mac80211/Kconfig "def_bool n" without prompt is pointless, this should be just "bool". Signed-off-by: Jan Beulich Signed-off-by: John W. Linville --- net/mac80211/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'net/mac80211') diff --git a/net/mac80211/Kconfig b/net/mac80211/Kconfig index 9109262..4c57a9c 100644 --- a/net/mac80211/Kconfig +++ b/net/mac80211/Kconfig @@ -17,7 +17,7 @@ comment "CFG80211 needs to be enabled for MAC80211" if MAC80211 != n config MAC80211_HAS_RC - def_bool n + bool config MAC80211_RC_PID bool "PID controller based rate control algorithm" if EMBEDDED -- cgit v1.1 From db28569adc692d9fb8a2d2d8e7ebab7fd5481f10 Mon Sep 17 00:00:00 2001 From: Vivek Natarajan Date: Fri, 18 Feb 2011 17:18:03 +0530 Subject: mac80211: Clear PS related flag on disabling power save. Clear IEEE80211_STA_NULLFUNC_ACKED flag on disabling power save. Without this fix, there is a chance of setting CONF_PS before sending nullfunc frame. Signed-off-by: Vivek Natarajan Signed-off-by: John W. Linville --- net/mac80211/tx.c | 1 + 1 file changed, 1 insertion(+) (limited to 'net/mac80211') diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index 38e5939..d0f91d7 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -236,6 +236,7 @@ ieee80211_tx_h_dynamic_ps(struct ieee80211_tx_data *tx) if (local->hw.conf.flags & IEEE80211_CONF_PS) { ieee80211_stop_queues_by_reason(&local->hw, IEEE80211_QUEUE_STOP_REASON_PS); + ifmgd->flags &= ~IEEE80211_STA_NULLFUNC_ACKED; ieee80211_queue_work(&local->hw, &local->dynamic_ps_disable_work); } -- cgit v1.1