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wifi: cfg80211/mac80211: use proper link ID for DFS

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Now that all APIs have support to handle DFS per link, use proper link ID
instead of 0.

Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com>
Link: https://patch.msgid.link/20240906064426.2101315-8-quic_adisi@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Aditya Kumar Singh 2024-09-06 12:14:25 +05:30 • committed by Johannes Berg
parent d74380ee99
commit 0b7798232e
5 changed files with 22 additions and 19 deletions
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6
net/mac80211/cfg.c
View file

@ -1662,12 +1662,12 @@ static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev,
ieee80211_link_info_change_notify(sdata, link, ieee80211_link_info_change_notify(sdata, link,
BSS_CHANGED_BEACON_ENABLED); BSS_CHANGED_BEACON_ENABLED);
if (sdata->wdev.links[0].cac_started) { if (sdata->wdev.links[link_id].cac_started) {
chandef = link_conf->chanreq.oper; chandef = link_conf->chanreq.oper;
wiphy_delayed_work_cancel(wiphy, &link->dfs_cac_timer_work); wiphy_delayed_work_cancel(wiphy, &link->dfs_cac_timer_work);
cfg80211_cac_event(sdata->dev, &chandef, cfg80211_cac_event(sdata->dev, &chandef,
NL80211_RADAR_CAC_ABORTED, NL80211_RADAR_CAC_ABORTED,
GFP_KERNEL, 0); GFP_KERNEL, link_id);
} }
drv_stop_ap(sdata->local, sdata, link_conf); drv_stop_ap(sdata->local, sdata, link_conf);
@ -3968,7 +3968,7 @@ __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
if (!list_empty(&local->roc_list) || local->scanning) if (!list_empty(&local->roc_list) || local->scanning)
return -EBUSY; return -EBUSY;
if (sdata->wdev.links[0].cac_started) if (sdata->wdev.links[link_id].cac_started)
return -EBUSY; return -EBUSY;
if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS)) if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS))

4
net/mac80211/mlme.c
View file

@ -3039,11 +3039,11 @@ void ieee80211_dfs_cac_timer_work(struct wiphy *wiphy, struct wiphy_work *work)
lockdep_assert_wiphy(sdata->local->hw.wiphy); lockdep_assert_wiphy(sdata->local->hw.wiphy);
if (sdata->wdev.links[0].cac_started) { if (sdata->wdev.links[link->link_id].cac_started) {
ieee80211_link_release_channel(link); ieee80211_link_release_channel(link);
cfg80211_cac_event(sdata->dev, &chandef, cfg80211_cac_event(sdata->dev, &chandef,
NL80211_RADAR_CAC_FINISHED, NL80211_RADAR_CAC_FINISHED,
GFP_KERNEL, 0); GFP_KERNEL, link->link_id);
} }
} }

6
net/mac80211/scan.c
View file

@ -575,6 +575,7 @@ static bool __ieee80211_can_leave_ch(struct ieee80211_sub_if_data *sdata)
{ {
struct ieee80211_local *local = sdata->local; struct ieee80211_local *local = sdata->local;
struct ieee80211_sub_if_data *sdata_iter; struct ieee80211_sub_if_data *sdata_iter;
unsigned int link_id;
lockdep_assert_wiphy(local->hw.wiphy); lockdep_assert_wiphy(local->hw.wiphy);
@ -585,8 +586,9 @@ static bool __ieee80211_can_leave_ch(struct ieee80211_sub_if_data *sdata)
return false; return false;
list_for_each_entry(sdata_iter, &local->interfaces, list) { list_for_each_entry(sdata_iter, &local->interfaces, list) {
if (sdata_iter->wdev.links[0].cac_started) for_each_valid_link(&sdata_iter->wdev, link_id)
return false; if (sdata_iter->wdev.links[link_id].cac_started)
return false;
} }
return true; return true;

10
net/wireless/mlme.c
View file

@ -1124,14 +1124,14 @@ void cfg80211_cac_event(struct net_device *netdev,
trace_cfg80211_cac_event(netdev, event, link_id); trace_cfg80211_cac_event(netdev, event, link_id);
if (WARN_ON(!wdev->links[0].cac_started && if (WARN_ON(!wdev->links[link_id].cac_started &&
event != NL80211_RADAR_CAC_STARTED)) event != NL80211_RADAR_CAC_STARTED))
return; return;
switch (event) { switch (event) {
case NL80211_RADAR_CAC_FINISHED: case NL80211_RADAR_CAC_FINISHED:
timeout = wdev->links[0].cac_start_time + timeout = wdev->links[link_id].cac_start_time +
msecs_to_jiffies(wdev->links[0].cac_time_ms); msecs_to_jiffies(wdev->links[link_id].cac_time_ms);
WARN_ON(!time_after_eq(jiffies, timeout)); WARN_ON(!time_after_eq(jiffies, timeout));
cfg80211_set_dfs_state(wiphy, chandef, NL80211_DFS_AVAILABLE); cfg80211_set_dfs_state(wiphy, chandef, NL80211_DFS_AVAILABLE);
memcpy(&rdev->cac_done_chandef, chandef, memcpy(&rdev->cac_done_chandef, chandef,
@ -1140,10 +1140,10 @@ void cfg80211_cac_event(struct net_device *netdev,
cfg80211_sched_dfs_chan_update(rdev); cfg80211_sched_dfs_chan_update(rdev);
fallthrough; fallthrough;
case NL80211_RADAR_CAC_ABORTED: case NL80211_RADAR_CAC_ABORTED:
wdev->links[0].cac_started = false; wdev->links[link_id].cac_started = false;
break; break;
case NL80211_RADAR_CAC_STARTED: case NL80211_RADAR_CAC_STARTED:
wdev->links[0].cac_started = true; wdev->links[link_id].cac_started = true;
break; break;
default: default:
WARN_ON(1); WARN_ON(1);

15
net/wireless/nl80211.c
View file

@ -6066,7 +6066,7 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
if (!rdev->ops->start_ap) if (!rdev->ops->start_ap)
return -EOPNOTSUPP; return -EOPNOTSUPP;
if (wdev->links[0].cac_started) if (wdev->links[link_id].cac_started)
return -EBUSY; return -EBUSY;
if (wdev->links[link_id].ap.beacon_interval) if (wdev->links[link_id].ap.beacon_interval)
@ -10072,6 +10072,7 @@ static int nl80211_start_radar_detection(struct sk_buff *skb,
struct cfg80211_registered_device *rdev = info->user_ptr[0]; struct cfg80211_registered_device *rdev = info->user_ptr[0];
struct net_device *dev = info->user_ptr[1]; struct net_device *dev = info->user_ptr[1];
struct wireless_dev *wdev = dev->ieee80211_ptr; struct wireless_dev *wdev = dev->ieee80211_ptr;
int link_id = nl80211_link_id(info->attrs);
struct wiphy *wiphy = wdev->wiphy; struct wiphy *wiphy = wdev->wiphy;
struct cfg80211_chan_def chandef; struct cfg80211_chan_def chandef;
enum nl80211_dfs_regions dfs_region; enum nl80211_dfs_regions dfs_region;
@ -10126,7 +10127,7 @@ static int nl80211_start_radar_detection(struct sk_buff *skb,
* can not already beacon * can not already beacon
*/ */
if (wdev->valid_links && if (wdev->valid_links &&
!wdev->links[0].ap.beacon_interval) { !wdev->links[link_id].ap.beacon_interval) {
/* nothing */ /* nothing */
} else { } else {
err = -EBUSY; err = -EBUSY;
@ -10134,7 +10135,7 @@ static int nl80211_start_radar_detection(struct sk_buff *skb,
} }
} }
if (wdev->links[0].cac_started) { if (wdev->links[link_id].cac_started) {
err = -EBUSY; err = -EBUSY;
goto unlock; goto unlock;
} }
@ -10155,7 +10156,7 @@ static int nl80211_start_radar_detection(struct sk_buff *skb,
cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS; cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
err = rdev_start_radar_detection(rdev, dev, &chandef, cac_time_ms, err = rdev_start_radar_detection(rdev, dev, &chandef, cac_time_ms,
0); link_id);
if (!err) { if (!err) {
switch (wdev->iftype) { switch (wdev->iftype) {
case NL80211_IFTYPE_AP: case NL80211_IFTYPE_AP:
@ -10171,9 +10172,9 @@ static int nl80211_start_radar_detection(struct sk_buff *skb,
default: default:
break; break;
} }
wdev->links[0].cac_started = true; wdev->links[link_id].cac_started = true;
wdev->links[0].cac_start_time = jiffies; wdev->links[link_id].cac_start_time = jiffies;
wdev->links[0].cac_time_ms = cac_time_ms; wdev->links[link_id].cac_time_ms = cac_time_ms;
} }
unlock: unlock:
wiphy_unlock(wiphy); wiphy_unlock(wiphy);