From: Benjamin Berg <benjamin.berg@xxxxxxxxx>
While often not needed, this considerably simplifies going from a link
to the STA. This helps in cases such as debugfs where a single pointer
should allow accessing a specific link and the STA.
Signed-off-by: Benjamin Berg <benjamin.berg@xxxxxxxxx>
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
---
include/net/mac80211.h | 3 +++
net/mac80211/sta_info.c | 1 +
2 files changed, 4 insertions(+)
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index ac2bad57933f..7778a92d9582 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -2176,6 +2176,7 @@ struct ieee80211_sta_aggregates {
* All link specific info for a STA link for a non MLD STA(single)
* or a MLD STA(multiple entries) are stored here.
*
+ * @sta: reference to owning STA
* @addr: MAC address of the Link STA. For non-MLO STA this is same as the addr
* in ieee80211_sta. For MLO Link STA this addr can be same or different
* from addr in ieee80211_sta (representing MLD STA addr)
@@ -2196,6 +2197,8 @@ struct ieee80211_sta_aggregates {
*
*/
struct ieee80211_link_sta {
+ struct ieee80211_sta *sta;
+
u8 addr[ETH_ALEN];
u8 link_id;
enum ieee80211_smps_mode smps_mode;
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index cebfd148bb40..71b1488bd390 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -511,6 +511,7 @@ static void sta_info_add_link(struct sta_info *sta,
link_info->sta = sta;
link_info->link_id = link_id;
link_info->pub = link_sta;
+ link_info->pub->sta = &sta->sta;
link_sta->link_id = link_id;
rcu_assign_pointer(sta->link[link_id], link_info);
rcu_assign_pointer(sta->sta.link[link_id], link_sta);
--
2.37.3
