diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2022-06-15 10:20:45 +0300 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2022-06-20 13:57:08 +0300 |
| commit | c71420db653aba30a234d1e4cf86dde376e604fa (patch) | |
| tree | 1e29e5b76bc2b04a6a3e93f9b362f3380b60558b /net/mac80211/ht.c | |
| parent | ce6893e917862cae669af52a440d086f416c4cc6 (diff) | |
| download | linux-c71420db653aba30a234d1e4cf86dde376e604fa.tar.xz | |
wifi: mac80211: RCU-ify link STA pointers
We need to be able to access these in a race-free way under
traffic while adding/removing them, so RCU-ify the pointers.
This requires passing a link_sta to a lot of functions so
we don't have to do the RCU handling everywhere.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/ht.c')
| -rw-r--r-- | net/mac80211/ht.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c index 111828b559a0..2eb3a409b70f 100644 --- a/net/mac80211/ht.c +++ b/net/mac80211/ht.c @@ -138,8 +138,9 @@ void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata, bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata, struct ieee80211_supported_band *sband, const struct ieee80211_ht_cap *ht_cap_ie, - struct sta_info *sta, unsigned int link_id) + struct link_sta_info *link_sta) { + struct sta_info *sta = link_sta->sta; struct ieee80211_sta_ht_cap ht_cap, own_cap; u8 ampdu_info, tx_mcs_set_cap; int i, max_tx_streams; @@ -243,12 +244,11 @@ bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata, sta->sta.max_amsdu_len = IEEE80211_MAX_MPDU_LEN_HT_3839; apply: - changed = memcmp(&sta->sta.link[link_id]->ht_cap, - &ht_cap, sizeof(ht_cap)); + changed = memcmp(&link_sta->pub->ht_cap, &ht_cap, sizeof(ht_cap)); - memcpy(&sta->sta.link[link_id]->ht_cap, &ht_cap, sizeof(ht_cap)); + memcpy(&link_sta->pub->ht_cap, &ht_cap, sizeof(ht_cap)); - switch (sdata->vif.link_conf[link_id]->chandef.width) { + switch (sdata->vif.link_conf[link_sta->link_id]->chandef.width) { default: WARN_ON_ONCE(1); fallthrough; @@ -265,9 +265,9 @@ bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata, break; } - sta->sta.link[link_id]->bandwidth = bw; + link_sta->pub->bandwidth = bw; - sta->link[link_id]->cur_max_bandwidth = + link_sta->cur_max_bandwidth = ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 ? IEEE80211_STA_RX_BW_40 : IEEE80211_STA_RX_BW_20; |