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wifi: mac80211: add an option to filter a sta from being flushed

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Sometimes we might want to flush only part of the stations of a vif,
for example only the TDLS ones.
To allow this, add a do_not_flush_sta argument to __sta_info_flush,
which in turn, will not flush this station.

Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20241224192322.535e1fcca192.Icecf7f443bf98c9535ce8ec03b24d0d17dfbc28e@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Miri Korenblit 2024-12-24 19:27:29 +02:00 committed by Johannes Berg
parent 52674ee2f3
commit a10723ced4
3 changed files with 8 additions and 4 deletions
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2
net/mac80211/cfg.c
View File

@ -1671,7 +1671,7 @@ static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev,
link_conf->ema_ap = false; link_conf->ema_ap = false;
link_conf->bssid_indicator = 0; link_conf->bssid_indicator = 0;
__sta_info_flush(sdata, true, link_id); __sta_info_flush(sdata, true, link_id, NULL);
ieee80211_remove_link_keys(link, &keys); ieee80211_remove_link_keys(link, &keys);
if (!list_empty(&keys)) { if (!list_empty(&keys)) {

5
net/mac80211/sta_info.c
View File

@ -1567,7 +1567,7 @@ void sta_info_stop(struct ieee80211_local *local)
int __sta_info_flush(struct ieee80211_sub_if_data *sdata, bool vlans, int __sta_info_flush(struct ieee80211_sub_if_data *sdata, bool vlans,
int link_id) int link_id, struct sta_info *do_not_flush_sta)
{ {
struct ieee80211_local *local = sdata->local; struct ieee80211_local *local = sdata->local;
struct sta_info *sta, *tmp; struct sta_info *sta, *tmp;
@ -1585,6 +1585,9 @@ int __sta_info_flush(struct ieee80211_sub_if_data *sdata, bool vlans,
(!vlans || sdata->bss != sta->sdata->bss)) (!vlans || sdata->bss != sta->sdata->bss))
continue; continue;
if (sta == do_not_flush_sta)
continue;
if (link_id >= 0 && sta->sta.valid_links && if (link_id >= 0 && sta->sta.valid_links &&
!(sta->sta.valid_links & BIT(link_id))) !(sta->sta.valid_links & BIT(link_id)))
continue; continue;

5
net/mac80211/sta_info.h
View File

@ -899,9 +899,10 @@ void sta_info_stop(struct ieee80211_local *local);
* @link_id: if given (>=0), all those STA entries using @link_id only * @link_id: if given (>=0), all those STA entries using @link_id only
* will be removed. If -1 is passed, all STA entries will be * will be removed. If -1 is passed, all STA entries will be
* removed. * removed.
* @do_not_flush_sta: a station that shouldn't be flushed.
*/ */
int __sta_info_flush(struct ieee80211_sub_if_data *sdata, bool vlans, int __sta_info_flush(struct ieee80211_sub_if_data *sdata, bool vlans,
int link_id); int link_id, struct sta_info *do_not_flush_sta);
/** /**
* sta_info_flush - flush matching STA entries from the STA table * sta_info_flush - flush matching STA entries from the STA table
@ -916,7 +917,7 @@ int __sta_info_flush(struct ieee80211_sub_if_data *sdata, bool vlans,
static inline int sta_info_flush(struct ieee80211_sub_if_data *sdata, static inline int sta_info_flush(struct ieee80211_sub_if_data *sdata,
int link_id) int link_id)
{ {
return __sta_info_flush(sdata, false, link_id); return __sta_info_flush(sdata, false, link_id, NULL);
} }
void sta_set_rate_info_tx(struct sta_info *sta, void sta_set_rate_info_tx(struct sta_info *sta,