[PATCH] mac80211: fix IBSS/adhoc mode for brcmfmac (e.g. Raspberry Pi Zero W)

[Bastian Bittorf]

without this fix, the final setup-call:
iw dev wlan0 ibss join ...

fails with returncode 161 and message:
"command failed: Not supported (-95)"

So this patch calls an explicit:
iw dev wlan0 set type ibss
just prior to the 'ibss join' command.

I have tested several ath9k and mt76xx devices
with different revisions: this patch does not harm.

please also apply to stable branch.

Signed-off-by: Bastian Bittorf <bb at npl.de>
---
 package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh | 1 +
 1 file changed, 1 insertion(+)

diff --git a/package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh b/package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh
index 4574a9881a..7d2ac48dae 100644
--- a/package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh
+++ b/package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh
@@ -860,6 +860,7 @@ mac80211_setup_adhoc() {
 	mcval=
 	[ -n "$mcast_rate" ] && wpa_supplicant_add_rate mcval "$mcast_rate"
 
+	iw dev "$ifname" set type ibss
 	iw dev "$ifname" ibss join "$ssid" $freq $iw_htmode fixed-freq $bssid \
 		beacon-interval $beacon_int \
 		${brstr:+basic-rates $brstr} \
-- 
2.27.0