[PATCH 01/17] staging: wfx: fix (future) TDLS support

From: Jerome Pouiller
Date: Mon Apr 27 2020 - 09:41:07 EST


From: JÃrÃme Pouiller <jerome.pouiller@xxxxxxxxxx>

The device does not expect that the AP to have a link-id. However, TDLS
peers should have a a link-id.

The driver does not yet declare itself as supporting TDLS.
Notwithstanding, fix the code in anticipation of the support of TDLS.

Signed-off-by: JÃrÃme Pouiller <jerome.pouiller@xxxxxxxxxx>
---
drivers/staging/wfx/sta.c | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/wfx/sta.c b/drivers/staging/wfx/sta.c
index f3e106f7eeac..2262e1de37f6 100644
--- a/drivers/staging/wfx/sta.c
+++ b/drivers/staging/wfx/sta.c
@@ -384,9 +384,8 @@ int wfx_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
spin_lock_init(&sta_priv->lock);
sta_priv->vif_id = wvif->id;

- // FIXME: in station mode, the current API interprets new link-id as a
- // tdls peer.
- if (vif->type == NL80211_IFTYPE_STATION)
+ // In station mode, the firmware interprets new link-id as a TDLS peer.
+ if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls)
return 0;
sta_priv->link_id = ffz(wvif->link_id_map);
wvif->link_id_map |= BIT(sta_priv->link_id);
@@ -408,8 +407,8 @@ int wfx_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
if (sta_priv->buffered[i])
dev_warn(wvif->wdev->dev, "release station while %d pending frame on queue %d",
sta_priv->buffered[i], i);
- // FIXME: see note in wfx_sta_add()
- if (vif->type == NL80211_IFTYPE_STATION)
+ // See note in wfx_sta_add()
+ if (!sta_priv->link_id)
return 0;
// FIXME add a mutex?
hif_map_link(wvif, sta->addr, 1, sta_priv->link_id);
--
2.26.1