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wcn36xx: handle connection loss indication

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commit d6dbce453b19c64b96f3e927b10230f9a704b504 upstream.

Firmware sends delete_sta_context_ind when it detects the AP has gone
away in STA mode. Right now the handler for that indication only handles
AP mode; fix it to also handle STA mode.

Cc: stable@vger.kernel.org
Signed-off-by: Benjamin Li <benl@squareup.com>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210901180606.11686-1-benl@squareup.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Benjamin Li 2021-09-01 11:06:05 -07:00 committed by Greg Kroah-Hartman
parent 701cf28e01
commit a194e9c721
1 changed files with 33 additions and 11 deletions
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44
drivers/net/wireless/ath/wcn36xx/smd.c
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@ -2632,30 +2632,52 @@ static int wcn36xx_smd_delete_sta_context_ind(struct wcn36xx *wcn,
size_t len)
{
struct wcn36xx_hal_delete_sta_context_ind_msg *rsp = buf;
struct wcn36xx_vif *tmp;
struct wcn36xx_vif *vif_priv;
struct ieee80211_vif *vif;
struct ieee80211_bss_conf *bss_conf;
struct ieee80211_sta *sta;
bool found = false;
if (len != sizeof(*rsp)) {
wcn36xx_warn("Corrupted delete sta indication\n");
return -EIO;
}
wcn36xx_dbg(WCN36XX_DBG_HAL, "delete station indication %pM index %d\n",
rsp->addr2, rsp->sta_id);
wcn36xx_dbg(WCN36XX_DBG_HAL,
"delete station indication %pM index %d reason %d\n",
rsp->addr2, rsp->sta_id, rsp->reason_code);
list_for_each_entry(tmp, &wcn->vif_list, list) {
list_for_each_entry(vif_priv, &wcn->vif_list, list) {
rcu_read_lock();
sta = ieee80211_find_sta(wcn36xx_priv_to_vif(tmp), rsp->addr2);
if (sta)
ieee80211_report_low_ack(sta, 0);
vif = wcn36xx_priv_to_vif(vif_priv);
if (vif->type == NL80211_IFTYPE_STATION) {
/* We could call ieee80211_find_sta too, but checking
* bss_conf is clearer.
*/
bss_conf = &vif->bss_conf;
if (vif_priv->sta_assoc &&
!memcmp(bss_conf->bssid, rsp->addr2, ETH_ALEN)) {
found = true;
wcn36xx_dbg(WCN36XX_DBG_HAL,
"connection loss bss_index %d\n",
vif_priv->bss_index);
ieee80211_connection_loss(vif);
}
} else {
sta = ieee80211_find_sta(vif, rsp->addr2);
if (sta) {
found = true;
ieee80211_report_low_ack(sta, 0);
}
}
rcu_read_unlock();
if (sta)
if (found)
return 0;
}
wcn36xx_warn("STA with addr %pM and index %d not found\n",
rsp->addr2,
rsp->sta_id);
wcn36xx_warn("BSS or STA with addr %pM not found\n", rsp->addr2);
return -ENOENT;
}