github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-11-07 06:17:02 +01:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

wifi: mac80211: implement mgmt_tx_unlocked()

Browse Source 
Implement the mgmt_tx_unlocked() method and accept frames
that are transmitted on the operating channel with it, as
they don't need further handling and can go out directly.

For off-channel etc. just return -EAGAIN to fall back to
the locked version.

Link: https://patch.msgid.link/20261009201417.6491f3bdeb4e.Ib10158e2729f89719b551dadb8384e89b9dce688@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg 2026-10-09 20:10:09 +02:00
parent c9f648b31b
commit bd3f374d01
3 changed files with 113 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
net/mac80211/cfg.c
View File

@ -6316,6 +6316,7 @@ const struct cfg80211_ops mac80211_config_ops = {
.remain_on_channel = ieee80211_remain_on_channel,
.cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
.mgmt_tx = ieee80211_mgmt_tx,
.mgmt_tx_unlocked = ieee80211_mgmt_tx_unlocked,
.mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
.set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
.set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config,

3
net/mac80211/ieee80211_i.h
View File

@ -2192,6 +2192,9 @@ int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
struct wireless_dev *wdev, u64 cookie);
int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
struct cfg80211_mgmt_tx_params *params, u64 cookie);
int ieee80211_mgmt_tx_unlocked(struct wiphy *wiphy, struct wireless_dev *wdev,
struct cfg80211_mgmt_tx_params *params,
u64 cookie);
int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
struct wireless_dev *wdev, u64 cookie);

109
net/mac80211/offchannel.c
View File

@ -1074,6 +1074,115 @@ int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
return ret;
}
int ieee80211_mgmt_tx_unlocked(struct wiphy *wiphy, struct wireless_dev *wdev,
struct cfg80211_mgmt_tx_params *params,
u64 cookie)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
const struct ieee80211_mgmt *mgmt = (void *)params->buf;
struct ieee80211_local *local = sdata->local;
struct sta_info *sta = NULL;
enum nl80211_band band;
struct sk_buff *skb;
int link_id = -1, i;
if (READ_ONCE(local->in_reconfig) || READ_ONCE(local->quiescing))
return -EAGAIN;
guard(rcu)();
/* do_stop() synchronizes RCU before the interface type can change */
if (!ieee80211_sdata_running(sdata))
return -EAGAIN;
switch (sdata->vif.type) {
case NL80211_IFTYPE_NAN_DATA:
if (is_multicast_ether_addr(mgmt->da))
return -EOPNOTSUPP;
fallthrough;
case NL80211_IFTYPE_NAN:
/* Frames can be sent during NAN schedule */
skb = ieee80211_mgmt_tx_skb(sdata, params, cookie, GFP_ATOMIC);
if (!skb)
return -ENOMEM;
__ieee80211_tx_skb_tid_band(sdata, skb,
params->no_sta ? ERR_PTR(-ENOENT) :
NULL,
7, -1, NUM_NL80211_BANDS);
return 0;
case NL80211_IFTYPE_AP:
case NL80211_IFTYPE_P2P_GO:
if (sdata->bss->active)
break;
fallthrough;
default:
return -EAGAIN;
}
if (!params->no_sta)
sta = sta_info_get_bss(sdata, mgmt->da);
if (ieee80211_is_action(mgmt->frame_control) &&
mgmt->u.action.category != WLAN_CATEGORY_PUBLIC &&
mgmt->u.action.category != WLAN_CATEGORY_SELF_PROTECTED &&
mgmt->u.action.category != WLAN_CATEGORY_SPECTRUM_MGMT) {
if (!sta)
return -ENOLINK;
if (params->link_id >= 0 &&
!(sta->sta.valid_links & BIT(params->link_id)))
return -ENOLINK;
link_id = params->link_id;
}
if ((params->chan || !sta || !sta->sta.mlo) &&
ieee80211_mgmt_tx_need_offchan(sdata, params, mgmt,
sta && sta->sta.mlo, &link_id))
return -EAGAIN;
/* things may have changed, avoid WARNs in ieee80211_tx_skb_tid() */
if (ieee80211_vif_is_mld(&sdata->vif)) {
band = 0;
if (link_id < 0 &&
!ether_addr_equal(sdata->vif.addr, mgmt->sa)) {
for (i = 0; i < ARRAY_SIZE(sdata->vif.link_conf); i++) {
struct ieee80211_bss_conf *conf;
conf = rcu_dereference(sdata->vif.link_conf[i]);
if (conf &&
ether_addr_equal(conf->addr, mgmt->sa)) {
link_id = i;
break;
}
}
if (link_id < 0)
return -EAGAIN;
}
if (link_id >= 0 &&
!(READ_ONCE(sdata->vif.active_links) & BIT(link_id)))
return -EAGAIN;
} else {
struct ieee80211_chanctx_conf *chanctx_conf;
chanctx_conf =
rcu_dereference(sdata->vif.bss_conf.chanctx_conf);
if (!chanctx_conf)
return -EAGAIN;
band = chanctx_conf->def.chan->band;
}
skb = ieee80211_mgmt_tx_skb(sdata, params, cookie, GFP_ATOMIC);
if (!skb)
return -ENOMEM;
__ieee80211_tx_skb_tid_band(sdata, skb,
params->no_sta ? ERR_PTR(-ENOENT) : sta,
7, link_id, band);
return 0;
}
int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
struct wireless_dev *wdev, u64 cookie)
{