[PATCH 08/19] staging: wfx: split out wfx_tx_fill_rates() from wfx_tx_confirm_cb()

Jerome Pouiller
2020-05-15T08:35:38Z

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>
---
drivers/staging/wfx/data_tx.c | 63 ++++++++++++++++++-----------------
1 file changed, 33 insertions(+), 30 deletions(-)

diff --git a/drivers/staging/wfx/data_tx.c b/drivers/staging/wfx/data_tx.c
index 5d029b0718e9..2ba3b5c3d1a7 100644
--- 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;
+ int tx_count;
+ int i;

- 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.
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
--
2.26.2