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authorJérôme Pouiller <jerome.pouiller@silabs.com>2020-01-15 13:55:34 +0000
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-01-16 20:59:53 +0100
commit5244357961a422100b73a9da423532578579324a (patch)
treed4bdfe04ed008ae7d01d815b3c6debe8bfcf6aff /drivers/staging
parentstaging: wfx: remove check for interface state (diff)
downloadlinux-dev-5244357961a422100b73a9da423532578579324a.tar.xz
linux-dev-5244357961a422100b73a9da423532578579324a.zip
staging: wfx: simplify hif_handle_tx_data()
Since enum action has now only two cases, it can be dropped. Then hif_handle_tx_data() can be simplified. Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com> Link: https://lore.kernel.org/r/20200115135338.14374-63-Jerome.Pouiller@silabs.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging')
-rw-r--r--drivers/staging/wfx/queue.c40
1 files changed, 15 insertions, 25 deletions
diff --git a/drivers/staging/wfx/queue.c b/drivers/staging/wfx/queue.c
index e0c609c35a7b..024497eb19ac 100644
--- a/drivers/staging/wfx/queue.c
+++ b/drivers/staging/wfx/queue.c
@@ -359,16 +359,13 @@ bool wfx_tx_queues_is_empty(struct wfx_dev *wdev)
static bool hif_handle_tx_data(struct wfx_vif *wvif, struct sk_buff *skb,
struct wfx_queue *queue)
{
- bool handled = false;
- struct wfx_tx_priv *tx_priv = wfx_skb_tx_priv(skb);
struct hif_req_tx *req = wfx_skb_txreq(skb);
- struct ieee80211_hdr *frame = (struct ieee80211_hdr *) (req->frame + req->data_flags.fc_offset);
-
- enum {
- do_wep,
- do_tx,
- } action = do_tx;
+ 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);
+ // FIXME: mac80211 is smart enough to handle BSS loss. Driver should not
+ // try to do anything about that.
if (ieee80211_is_nullfunc(frame->frame_control)) {
mutex_lock(&wvif->bss_loss_lock);
if (wvif->bss_loss_state) {
@@ -376,31 +373,24 @@ static bool hif_handle_tx_data(struct wfx_vif *wvif, struct sk_buff *skb,
req->queue_id.queue_id = HIF_QUEUE_ID_VOICE;
}
mutex_unlock(&wvif->bss_loss_lock);
- } else if (ieee80211_has_protected(frame->frame_control) &&
- tx_priv->hw_key &&
- tx_priv->hw_key->keyidx != wvif->wep_default_key_id &&
- (tx_priv->hw_key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
- tx_priv->hw_key->cipher == WLAN_CIPHER_SUITE_WEP104)) {
- action = do_wep;
}
- switch (action) {
- case do_wep:
+ // 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(wvif->wdev);
WARN_ON(wvif->wep_pending_skb);
- wvif->wep_default_key_id = tx_priv->hw_key->keyidx;
+ wvif->wep_default_key_id = hw_key->keyidx;
wvif->wep_pending_skb = skb;
if (!schedule_work(&wvif->wep_key_work))
wfx_tx_unlock(wvif->wdev);
- handled = true;
- break;
- case do_tx:
- break;
- default:
- /* Do nothing */
- break;
+ return true;
+ } else {
+ return false;
}
- return handled;
}
static int wfx_get_prio_queue(struct wfx_vif *wvif,