diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2022-06-17 22:36:37 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2022-07-15 11:43:14 +0200 |
| commit | d8675a63518c6148827838058feb7f18403faed1 (patch) | |
| tree | fbdee52aa9f31da2b33ad5804cc4ea76a9a82a24 /net/mac80211/main.c | |
| parent | 3d1cc7cdf2e848181398837fe158bf0850d29ee6 (diff) | |
| download | lwn-d8675a63518c6148827838058feb7f18403faed1.tar.gz lwn-d8675a63518c6148827838058feb7f18403faed1.zip | |
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 <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/main.c')
| -rw-r--r-- | net/mac80211/main.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/net/mac80211/main.c b/net/mac80211/main.c index c34f06039dda..191f4d35ef60 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -246,9 +246,11 @@ void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, u64 ch = changed & ~BSS_CHANGED_VIF_CFG_FLAGS; /* FIXME: should be for each link */ - trace_drv_link_info_changed(local, sdata, 0, changed); + trace_drv_link_info_changed(local, sdata, &sdata->vif.bss_conf, + 0, changed); if (local->ops->link_info_changed) local->ops->link_info_changed(&local->hw, &sdata->vif, + &sdata->vif.bss_conf, 0, ch); } @@ -272,7 +274,8 @@ void ieee80211_vif_cfg_change_notify(struct ieee80211_sub_if_data *sdata, } void ieee80211_link_info_change_notify(struct ieee80211_sub_if_data *sdata, - int link_id, u64 changed) + struct ieee80211_link_data *link, + u64 changed) { struct ieee80211_local *local = sdata->local; @@ -284,7 +287,7 @@ void ieee80211_link_info_change_notify(struct ieee80211_sub_if_data *sdata, if (!check_sdata_in_driver(sdata)) return; - drv_link_info_changed(local, sdata, link_id, changed); + drv_link_info_changed(local, sdata, link->conf, link->link_id, changed); } u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata) |