This was succesfully tested with 4366B1. A small workaround is needed
for the main interface otherwise it would stuck at the hidden state.

Signed-off-by: Rafał Miłecki <zaj...@gmail.com>
---
 drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c 
b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
index 6e6066a..8d1328f 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
@@ -4662,6 +4662,15 @@ brcmf_cfg80211_start_ap(struct wiphy *wiphy, struct 
net_device *ndev,
                        brcmf_err("SET SSID error (%d)\n", err);
                        goto exit;
                }
+
+               if (settings->hidden_ssid) {
+                       err = brcmf_fil_iovar_int_set(ifp, "closednet", 1);
+                       if (err) {
+                               brcmf_err("closednet error (%d)\n", err);
+                               goto exit;
+                       }
+               }
+
                brcmf_dbg(TRACE, "AP mode configuration complete\n");
        } else if (dev_role == NL80211_IFTYPE_P2P_GO) {
                err = brcmf_fil_iovar_int_set(ifp, "chanspec", chanspec);
@@ -4720,6 +4729,10 @@ static int brcmf_cfg80211_stop_ap(struct wiphy *wiphy, 
struct net_device *ndev)
                        return err;
                }
 
+               /* First BSS doesn't get a full reset */
+               if (ifp->bsscfgidx == 0)
+                       brcmf_fil_iovar_int_set(ifp, "closednet", 0);
+
                memset(&join_params, 0, sizeof(join_params));
                err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
                                             &join_params, sizeof(join_params));
-- 
1.8.4.5

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