From d8675a63518c6148827838058feb7f18403faed1 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Fri, 17 Jun 2022 22:36:37 +0200 Subject: wifi: mac80211: RCU-ify link/link_conf pointers Since links can be added and removed dynamically, we need to somehow protect the sdata->link[] and vif->link_conf[] array pointers from disappearing when accessing them without locks. RCU-ify the pointers to achieve this, which requires quite a bit of rework. Signed-off-by: Johannes Berg --- net/mac80211/sta_info.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'net/mac80211/sta_info.c') diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index a4fa0ce7bd92..20aad688c9c9 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -731,7 +731,8 @@ ieee80211_recalc_p2p_go_ps_allowed(struct ieee80211_sub_if_data *sdata) if (allow_p2p_go_ps != sdata->vif.bss_conf.allow_p2p_go_ps) { sdata->vif.bss_conf.allow_p2p_go_ps = allow_p2p_go_ps; - ieee80211_link_info_change_notify(sdata, 0, BSS_CHANGED_P2P_PS); + ieee80211_link_info_change_notify(sdata, &sdata->deflink, + BSS_CHANGED_P2P_PS); } } -- cgit v1.2.3