staging: wfx: split out wfx_tx_fill_rates() from wfx_tx_confirm_cb()

wfx_tx_confirm_cb() is a big function. A big part of its body aims to
fill the rates list. So, create a new function wfx_tx_fill_rates() and
make wfx_tx_confirm_cb() smaller.

Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20200515083325.378539-9-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/wfx/data_tx.c b/drivers/staging/wfx/data_tx.c
index 5d029b0..2ba3b5c 100644 (file)
--- a/drivers/staging/wfx/data_tx.c
+++ b/drivers/staging/wfx/data_tx.c
@@ -496,30 +496,14 @@ static void wfx_skb_dtor(struct wfx_dev *wdev,
        ieee80211_tx_status_irqsafe(wdev->hw, skb);
 }
 
-void wfx_tx_confirm_cb(struct wfx_vif *wvif, const struct hif_cnf_tx *arg)
+static void wfx_tx_fill_rates(struct wfx_dev *wdev,
+                             struct ieee80211_tx_info *tx_info,
+                             const struct hif_cnf_tx *arg)
 {
-       int i;
-       int tx_count;
-       struct sk_buff *skb;
        struct ieee80211_tx_rate *rate;
-       struct ieee80211_tx_info *tx_info;
-       const struct wfx_tx_priv *tx_priv;
-       bool has_sta;
-
-       skb = wfx_pending_get(wvif->wdev, arg->packet_id);
-       if (!skb) {
-               dev_warn(wvif->wdev->dev,
-                        "received unknown packet_id (%#.8x) from chip\n",
-                        arg->packet_id);
-               return;
-       }
-       tx_info = IEEE80211_SKB_CB(skb);
-       tx_priv = wfx_skb_tx_priv(skb);
-       has_sta = tx_priv->has_sta;
-       _trace_tx_stats(arg, skb,
-                       wfx_pending_get_pkt_us_delay(wvif->wdev, skb));
+       int tx_count;
+       int i;
 
-       // You can touch to tx_priv, but don't touch to tx_info->status.
        tx_count = arg->ack_failures;
        if (!arg->status || arg->ack_failures)
                tx_count += 1; // Also report success
@@ -530,15 +514,12 @@ void wfx_tx_confirm_cb(struct wfx_vif *wvif, const struct hif_cnf_tx *arg)
                if (tx_count < rate->count &&
                    arg->status == HIF_STATUS_TX_FAIL_RETRIES &&
                    arg->ack_failures)
-                       dev_dbg(wvif->wdev->dev,
-                               "all retries were not consumed: %d != %d\n",
+                       dev_dbg(wdev->dev, "all retries were not consumed: %d != %d\n",
                                rate->count, tx_count);
                if (tx_count <= rate->count && tx_count &&
-                   arg->txed_rate != wfx_get_hw_rate(wvif->wdev, rate))
-                       dev_dbg(wvif->wdev->dev,
-                               "inconsistent tx_info rates: %d != %d\n",
-                               arg->txed_rate,
-                               wfx_get_hw_rate(wvif->wdev, rate));
+                   arg->txed_rate != wfx_get_hw_rate(wdev, rate))
+                       dev_dbg(wdev->dev, "inconsistent tx_info rates: %d != %d\n",
+                               arg->txed_rate, wfx_get_hw_rate(wdev, rate));
                if (tx_count > rate->count) {
                        tx_count -= rate->count;
                } else if (!tx_count) {
@@ -550,8 +531,30 @@ void wfx_tx_confirm_cb(struct wfx_vif *wvif, const struct hif_cnf_tx *arg)
                }
        }
        if (tx_count)
-               dev_dbg(wvif->wdev->dev, "%d more retries than expected\n",
-                       tx_count);
+               dev_dbg(wdev->dev, "%d more retries than expected\n", tx_count);
+}
+
+void wfx_tx_confirm_cb(struct wfx_vif *wvif, const struct hif_cnf_tx *arg)
+{
+       struct ieee80211_tx_info *tx_info;
+       const struct wfx_tx_priv *tx_priv;
+       struct sk_buff *skb;
+       bool has_sta;
+
+       skb = wfx_pending_get(wvif->wdev, arg->packet_id);
+       if (!skb) {
+               dev_warn(wvif->wdev->dev, "received unknown packet_id (%#.8x) from chip\n",
+                        arg->packet_id);
+               return;
+       }
+       tx_info = IEEE80211_SKB_CB(skb);
+       tx_priv = wfx_skb_tx_priv(skb);
+       has_sta = tx_priv->has_sta;
+       _trace_tx_stats(arg, skb,
+                       wfx_pending_get_pkt_us_delay(wvif->wdev, skb));
+
+       // You can touch to tx_priv, but don't touch to tx_info->status.
+       wfx_tx_fill_rates(wvif->wdev, tx_info, arg);
        skb_trim(skb, skb->len - wfx_tx_get_icv_len(tx_priv->hw_key));
 
        // From now, you can touch to tx_info->status, but do not touch to