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-rw-r--r--net/mac80211/vht.c46
1 files changed, 22 insertions, 24 deletions
diff --git a/net/mac80211/vht.c b/net/mac80211/vht.c
index b3a5c3e96a..bc13b14199 100644
--- a/net/mac80211/vht.c
+++ b/net/mac80211/vht.c
@@ -4,7 +4,7 @@
*
* Portions of this file
* Copyright(c) 2015 - 2016 Intel Deutschland GmbH
- * Copyright (C) 2018 - 2023 Intel Corporation
+ * Copyright (C) 2018 - 2024 Intel Corporation
*/
#include <linux/ieee80211.h>
@@ -541,15 +541,11 @@ ieee80211_sta_cur_vht_bw(struct link_sta_info *link_sta)
return bw;
}
-void ieee80211_sta_set_rx_nss(struct link_sta_info *link_sta)
+void ieee80211_sta_init_nss(struct link_sta_info *link_sta)
{
u8 ht_rx_nss = 0, vht_rx_nss = 0, he_rx_nss = 0, eht_rx_nss = 0, rx_nss;
bool support_160;
- /* if we received a notification already don't overwrite it */
- if (link_sta->pub->rx_nss)
- return;
-
if (link_sta->pub->eht_cap.has_eht) {
int i;
const u8 *rx_nss_mcs = (void *)&link_sta->pub->eht_cap.eht_mcs_nss_supp;
@@ -627,7 +623,15 @@ void ieee80211_sta_set_rx_nss(struct link_sta_info *link_sta)
rx_nss = max(vht_rx_nss, ht_rx_nss);
rx_nss = max(he_rx_nss, rx_nss);
rx_nss = max(eht_rx_nss, rx_nss);
- link_sta->pub->rx_nss = max_t(u8, 1, rx_nss);
+ rx_nss = max_t(u8, 1, rx_nss);
+ link_sta->capa_nss = rx_nss;
+
+ /* that shouldn't be set yet, but we can handle it anyway */
+ if (link_sta->op_mode_nss)
+ link_sta->pub->rx_nss =
+ min_t(u8, rx_nss, link_sta->op_mode_nss);
+ else
+ link_sta->pub->rx_nss = rx_nss;
}
u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
@@ -637,7 +641,7 @@ u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
enum ieee80211_sta_rx_bandwidth new_bw;
struct sta_opmode_info sta_opmode = {};
u32 changed = 0;
- u8 nss, cur_nss;
+ u8 nss;
/* ignore - no support for BF yet */
if (opmode & IEEE80211_OPMODE_NOTIF_RX_NSS_TYPE_BF)
@@ -647,23 +651,17 @@ u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
nss >>= IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT;
nss += 1;
- if (link_sta->pub->rx_nss != nss) {
- cur_nss = link_sta->pub->rx_nss;
- /* Reset rx_nss and call ieee80211_sta_set_rx_nss() which
- * will set the same to max nss value calculated based on capability.
- */
- link_sta->pub->rx_nss = 0;
- ieee80211_sta_set_rx_nss(link_sta);
- /* Do not allow an nss change to rx_nss greater than max_nss
- * negotiated and capped to APs capability during association.
- */
- if (nss <= link_sta->pub->rx_nss) {
- link_sta->pub->rx_nss = nss;
- sta_opmode.rx_nss = nss;
- changed |= IEEE80211_RC_NSS_CHANGED;
- sta_opmode.changed |= STA_OPMODE_N_SS_CHANGED;
+ if (link_sta->op_mode_nss != nss) {
+ if (nss <= link_sta->capa_nss) {
+ link_sta->op_mode_nss = nss;
+
+ if (nss != link_sta->pub->rx_nss) {
+ link_sta->pub->rx_nss = nss;
+ changed |= IEEE80211_RC_NSS_CHANGED;
+ sta_opmode.rx_nss = link_sta->pub->rx_nss;
+ sta_opmode.changed |= STA_OPMODE_N_SS_CHANGED;
+ }
} else {
- link_sta->pub->rx_nss = cur_nss;
pr_warn_ratelimited("Ignoring NSS change in VHT Operating Mode Notification from %pM with invalid nss %d",
link_sta->pub->addr, nss);
}