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Message-Id: <20200420160311.57323-11-Jerome.Pouiller@silabs.com>
Date: Mon, 20 Apr 2020 18:03:05 +0200
From: Jerome Pouiller <Jerome.Pouiller@...abs.com>
To: devel@...verdev.osuosl.org, linux-wireless@...r.kernel.org
Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Kalle Valo <kvalo@...eaurora.org>,
"David S . Miller" <davem@...emloft.net>,
Jérôme Pouiller
<jerome.pouiller@...abs.com>
Subject: [PATCH 10/16] staging: wfx: introduce wfx_set_default_unicast_key()
From: Jérôme Pouiller <jerome.pouiller@...abs.com>
Currently code handle WEP keys manually. It is far easier to use
the set_default_unicast_key() callback provided by mac80211.
Signed-off-by: Jérôme Pouiller <jerome.pouiller@...abs.com>
---
drivers/staging/wfx/key.c | 10 ----------
drivers/staging/wfx/key.h | 1 -
drivers/staging/wfx/main.c | 1 +
drivers/staging/wfx/queue.c | 33 ---------------------------------
drivers/staging/wfx/sta.c | 18 ++++++++----------
drivers/staging/wfx/sta.h | 2 ++
drivers/staging/wfx/wfx.h | 4 ----
7 files changed, 11 insertions(+), 58 deletions(-)
diff --git a/drivers/staging/wfx/key.c b/drivers/staging/wfx/key.c
index 7b79b6175372..e3853cbf431c 100644
--- a/drivers/staging/wfx/key.c
+++ b/drivers/staging/wfx/key.c
@@ -257,13 +257,3 @@ int wfx_upload_keys(struct wfx_vif *wvif)
return 0;
}
-void wfx_wep_key_work(struct work_struct *work)
-{
- struct wfx_vif *wvif = container_of(work, struct wfx_vif, wep_key_work);
-
- wfx_tx_flush(wvif->wdev);
- hif_wep_default_key_id(wvif, wvif->wep_default_key_id);
- wfx_pending_requeue(wvif->wdev, wvif->wep_pending_skb);
- wvif->wep_pending_skb = NULL;
- wfx_tx_unlock(wvif->wdev);
-}
diff --git a/drivers/staging/wfx/key.h b/drivers/staging/wfx/key.h
index 9436ccdf4d3b..2c334f9fb2a8 100644
--- a/drivers/staging/wfx/key.h
+++ b/drivers/staging/wfx/key.h
@@ -17,6 +17,5 @@ int wfx_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
struct ieee80211_vif *vif, struct ieee80211_sta *sta,
struct ieee80211_key_conf *key);
int wfx_upload_keys(struct wfx_vif *wvif);
-void wfx_wep_key_work(struct work_struct *work);
#endif /* WFX_STA_H */
diff --git a/drivers/staging/wfx/main.c b/drivers/staging/wfx/main.c
index 8a2c96dacd63..cc7f924f3106 100644
--- a/drivers/staging/wfx/main.c
+++ b/drivers/staging/wfx/main.c
@@ -145,6 +145,7 @@ static const struct ieee80211_ops wfx_ops = {
.set_tim = wfx_set_tim,
.set_key = wfx_set_key,
.set_rts_threshold = wfx_set_rts_threshold,
+ .set_default_unicast_key = wfx_set_default_unicast_key,
.bss_info_changed = wfx_bss_info_changed,
.prepare_multicast = wfx_prepare_multicast,
.configure_filter = wfx_configure_filter,
diff --git a/drivers/staging/wfx/queue.c b/drivers/staging/wfx/queue.c
index e9573e9d009f..2f6f9faf15be 100644
--- a/drivers/staging/wfx/queue.c
+++ b/drivers/staging/wfx/queue.c
@@ -254,36 +254,6 @@ bool wfx_tx_queues_has_cab(struct wfx_vif *wvif)
return false;
}
-static bool wfx_handle_tx_data(struct wfx_dev *wdev, struct sk_buff *skb)
-{
- struct hif_req_tx *req = wfx_skb_txreq(skb);
- struct ieee80211_key_conf *hw_key = wfx_skb_tx_priv(skb)->hw_key;
- struct ieee80211_hdr *frame =
- (struct ieee80211_hdr *)(req->frame + req->data_flags.fc_offset);
- struct wfx_vif *wvif =
- wdev_to_wvif(wdev, ((struct hif_msg *)skb->data)->interface);
-
- if (!wvif)
- return false;
-
- // FIXME: identify the exact scenario matched by this condition. Does it
- // happen yet?
- if (ieee80211_has_protected(frame->frame_control) &&
- hw_key && hw_key->keyidx != wvif->wep_default_key_id &&
- (hw_key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
- hw_key->cipher == WLAN_CIPHER_SUITE_WEP104)) {
- wfx_tx_lock(wdev);
- WARN_ON(wvif->wep_pending_skb);
- wvif->wep_default_key_id = hw_key->keyidx;
- wvif->wep_pending_skb = skb;
- if (!schedule_work(&wvif->wep_key_work))
- wfx_tx_unlock(wdev);
- return true;
- } else {
- return false;
- }
-}
-
static struct sk_buff *wfx_tx_queues_get_skb(struct wfx_dev *wdev)
{
struct wfx_queue *sorted_queues[IEEE80211_NUM_ACS];
@@ -348,9 +318,6 @@ struct hif_msg *wfx_tx_queues_get(struct wfx_dev *wdev)
return NULL;
skb_queue_tail(&wdev->tx_pending, skb);
wake_up(&wdev->tx_dequeue);
- // FIXME: is it useful?
- if (wfx_handle_tx_data(wdev, skb))
- continue;
tx_priv = wfx_skb_tx_priv(skb);
tx_priv->xmit_timestamp = ktime_get();
return (struct hif_msg *)skb->data;
diff --git a/drivers/staging/wfx/sta.c b/drivers/staging/wfx/sta.c
index 1cc437f0bc81..876952f39fc9 100644
--- a/drivers/staging/wfx/sta.c
+++ b/drivers/staging/wfx/sta.c
@@ -275,6 +275,14 @@ static void wfx_beacon_loss_work(struct work_struct *work)
msecs_to_jiffies(bss_conf->beacon_int));
}
+void wfx_set_default_unicast_key(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif, int idx)
+{
+ struct wfx_vif *wvif = (struct wfx_vif *)vif->drv_priv;
+
+ hif_wep_default_key_id(wvif, idx);
+}
+
// Call it with wdev->conf_mutex locked
static void wfx_do_unjoin(struct wfx_vif *wvif)
{
@@ -560,13 +568,6 @@ void wfx_bss_info_changed(struct ieee80211_hw *hw,
wfx_filter_beacon(wvif, true);
}
- /* assoc/disassoc, or maybe AID changed */
- if (changed & BSS_CHANGED_ASSOC) {
- wfx_tx_lock_flush(wdev);
- wvif->wep_default_key_id = -1;
- wfx_tx_unlock(wdev);
- }
-
if (changed & BSS_CHANGED_ASSOC) {
if (info->assoc || info->ibss_joined)
wfx_join_finalize(wvif, info);
@@ -757,9 +758,6 @@ int wfx_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
INIT_WORK(&wvif->update_tim_work, wfx_update_tim_work);
INIT_DELAYED_WORK(&wvif->beacon_loss_work, wfx_beacon_loss_work);
- wvif->wep_default_key_id = -1;
- INIT_WORK(&wvif->wep_key_work, wfx_wep_key_work);
-
init_completion(&wvif->set_pm_mode_complete);
complete(&wvif->set_pm_mode_complete);
INIT_WORK(&wvif->tx_policy_upload_work, wfx_tx_policy_upload_work);
diff --git a/drivers/staging/wfx/sta.h b/drivers/staging/wfx/sta.h
index 767b794fa398..fe728e642cfc 100644
--- a/drivers/staging/wfx/sta.h
+++ b/drivers/staging/wfx/sta.h
@@ -36,6 +36,8 @@ int wfx_start(struct ieee80211_hw *hw);
void wfx_stop(struct ieee80211_hw *hw);
int wfx_config(struct ieee80211_hw *hw, u32 changed);
int wfx_set_rts_threshold(struct ieee80211_hw *hw, u32 value);
+void wfx_set_default_unicast_key(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif, int idx);
u64 wfx_prepare_multicast(struct ieee80211_hw *hw,
struct netdev_hw_addr_list *mc_list);
void wfx_configure_filter(struct ieee80211_hw *hw, unsigned int changed_flags,
diff --git a/drivers/staging/wfx/wfx.h b/drivers/staging/wfx/wfx.h
index 913b80d024a3..0fa88de64907 100644
--- a/drivers/staging/wfx/wfx.h
+++ b/drivers/staging/wfx/wfx.h
@@ -74,10 +74,6 @@ struct wfx_vif {
bool after_dtim_tx_allowed;
struct delayed_work beacon_loss_work;
- s8 wep_default_key_id;
- struct sk_buff *wep_pending_skb;
- struct work_struct wep_key_work;
-
struct tx_policy_cache tx_policy_cache;
struct work_struct tx_policy_upload_work;
--
2.26.1
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