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Revert "wifi: mac80211: fix RCU list iterations"

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BugLink: https://bugs.launchpad.net/bugs/2100292

This reverts commit f37319609335d3eb2f7edfec4bad7996668a4d29 which is
commit ac35180032fbc5d80b29af00ba4881815ceefcb6 upstream.

It should not have been backported here due to lack of other rcu
changes in the stable branches.

Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Koichiro Den <koichiro.den@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
This commit is contained in:
Greg Kroah-Hartman
2025-02-26 22:49:14 +09:00
committed by Stefan Bader
parent 16c93abc89
commit 55663e3589
4 changed files with 4 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files
net/mac80211/chan.c
+1 -3
View File
@@ -246,9 +246,7 @@ ieee80211_get_max_required_bw(struct ieee80211_sub_if_data *sdata,
enum nl80211_chan_width max_bw = NL80211_CHAN_WIDTH_20_NOHT;
struct sta_info *sta;
lockdep_assert_wiphy(sdata->local->hw.wiphy);
list_for_each_entry(sta, &sdata->local->sta_list, list) {
list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
if (sdata != sta->sdata &&
!(sta->sdata->bss && sta->sdata->bss == sdata->bss))
continue;
net/mac80211/mlme.c
+1 -1
View File
@@ -740,7 +740,7 @@ static bool ieee80211_add_vht_ie(struct ieee80211_sub_if_data *sdata,
bool disable_mu_mimo = false;
struct ieee80211_sub_if_data *other;
list_for_each_entry(other, &local->interfaces, list) {
list_for_each_entry_rcu(other, &local->interfaces, list) {
if (other->vif.bss_conf.mu_mimo_owner) {
disable_mu_mimo = true;
break;
net/mac80211/scan.c
+1 -1
View File
@@ -494,7 +494,7 @@ static void __ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted)
* the scan was in progress; if there was none this will
* just be a no-op for the particular interface.
*/
list_for_each_entry(sdata, &local->interfaces, list) {
list_for_each_entry_rcu(sdata, &local->interfaces, list) {
if (ieee80211_sdata_running(sdata))
wiphy_work_queue(sdata->local->hw.wiphy, &sdata->work);
}
net/mac80211/util.c
+1 -3
View File
@@ -746,9 +746,7 @@ static void __iterate_interfaces(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata;
bool active_only = iter_flags & IEEE80211_IFACE_ITER_ACTIVE;
list_for_each_entry_rcu(sdata, &local->interfaces, list,
lockdep_is_held(&local->iflist_mtx) ||
lockdep_is_held(&local->hw.wiphy->mtx)) {
list_for_each_entry_rcu(sdata, &local->interfaces, list) {
switch (sdata->vif.type) {
case NL80211_IFTYPE_MONITOR:
if (!(sdata->u.mntr.flags & MONITOR_FLAG_ACTIVE))