[RFC v1] mt76: mt7615: mt7622: fix adhoc and ibss mode

From: Nick Hainke
Date: Thu Oct 07 2021 - 17:40:04 EST


Fixes: d8d59f66d136 ("mt76: mt7615: support 16 interfaces").

commit 7f4b7920318b ("mt76: mt7615: add ibss support") introduced IBSS
and commit f4ec7fdf7f83 ("mt76: mt7615: enable support for mesh")
meshpoint support.

Both used in the "get_omac_idx"-function:

if (~mask & BIT(HW_BSSID_0))
return HW_BSSID_0;

With commit d8d59f66d136 ("mt76: mt7615: support 16 interfaces") the
adhoc and meshpoint mode should "prefer hw bssid slot 1-3". However,
with that change the ibss or meshpoint mode will not send any beacon on
the mt7622 wifi anymore. Devices were still able to exchange data but
only if a bssid already existed. Two mt7622 devices will never be able
to communicate.

This commits reverts the preferation of slot 1-3 for adhoc and
meshpoint. Only NL80211_IFTYPE_STATION will still prefer slot 1-3.

Tested on Banana Pi R64.

Signed-off-by: Nick Hainke <vincent@xxxxxxxxxxxx>
---
drivers/net/wireless/mediatek/mt76/mt7615/main.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/main.c b/drivers/net/wireless/mediatek/mt76/mt7615/main.c
index dada43d6d879..51260a669d16 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/main.c
@@ -135,8 +135,6 @@ static int get_omac_idx(enum nl80211_iftype type, u64 mask)
int i;

switch (type) {
- case NL80211_IFTYPE_MESH_POINT:
- case NL80211_IFTYPE_ADHOC:
case NL80211_IFTYPE_STATION:
/* prefer hw bssid slot 1-3 */
i = get_free_idx(mask, HW_BSSID_1, HW_BSSID_3);
@@ -160,6 +158,8 @@ static int get_omac_idx(enum nl80211_iftype type, u64 mask)
return HW_BSSID_0;

break;
+ case NL80211_IFTYPE_ADHOC:
+ case NL80211_IFTYPE_MESH_POINT:
case NL80211_IFTYPE_MONITOR:
case NL80211_IFTYPE_AP:
/* ap uses hw bssid 0 and ext bssid */
--
2.33.0