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cfg80211: remove support for adjacent channel compensation 

The only driver that used that was iwlwifi and it removed
support for this. Remove the feature here as well.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://lore.kernel.org/r/20200214232336.a530de38e511.I393bc395f6037c8cca6421ed550e3072dc248aed@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Emmanuel Grumbach 2020-02-14 23:23:38 +01:00 committed by Johannes Berg
parent ca98c47d54
commit 7bb106eb68
3 changed files with 3 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
include/net/cfg80211.h
View File

@ -4577,12 +4577,6 @@ struct wiphy_iftype_akm_suites {
* and probe responses. This value should be set if the driver
* wishes to limit the number of csa counters. Default (0) means
* infinite.
* @max_adj_channel_rssi_comp: max offset of between the channel on which the
* frame was sent and the channel on which the frame was heard for which
* the reported rssi is still valid. If a driver is able to compensate the
* low rssi when a frame is heard on different channel, then it should set
* this variable to the maximal offset for which it can compensate.
* This value should be set in MHz.
* @bss_select_support: bitmask indicating the BSS selection criteria supported
* by the driver in the .connect() callback. The bit position maps to the
* attribute indices defined in &enum nl80211_bss_select_attr.
@ -4734,7 +4728,6 @@ struct wiphy {
u16 max_ap_assoc_sta;
u8 max_num_csa_counters;
u8 max_adj_channel_rssi_comp;
u32 bss_select_support;

3
net/mac80211/scan.c
View File

@ -201,8 +201,7 @@ ieee80211_bss_info_update(struct ieee80211_local *local,
mgmt->bssid, cbss->bssid);
/* In case the signal is invalid update the status */
signal_valid = abs(channel->center_freq - cbss->channel->center_freq)
<= local->hw.wiphy->max_adj_channel_rssi_comp;
signal_valid = channel == cbss->channel;
if (!signal_valid)
rx_status->flag |= RX_FLAG_NO_SIGNAL_VAL;

6
net/wireless/scan.c
View File

@ -1433,8 +1433,7 @@ cfg80211_inform_single_bss_data(struct wiphy *wiphy,
}
rcu_assign_pointer(tmp.pub.ies, ies);
signal_valid = abs(data->chan->center_freq - channel->center_freq) <=
wiphy->max_adj_channel_rssi_comp;
signal_valid = data->chan == channel;
res = cfg80211_bss_update(wiphy_to_rdev(wiphy), &tmp, signal_valid, ts);
if (!res)
return NULL;
@ -1851,8 +1850,7 @@ cfg80211_inform_single_bss_frame_data(struct wiphy *wiphy,
memcpy(tmp.pub.chain_signal, data->chain_signal, IEEE80211_MAX_CHAINS);
ether_addr_copy(tmp.parent_bssid, data->parent_bssid);
signal_valid = abs(data->chan->center_freq - channel->center_freq) <=
wiphy->max_adj_channel_rssi_comp;
signal_valid = data->chan == channel;
res = cfg80211_bss_update(wiphy_to_rdev(wiphy), &tmp, signal_valid,
jiffies);
if (!res)