rtl8xxxu: Determine need for shore preamble before updating TX descriptors

Another patch to move this detection out of the code handling the TX
descriptor update.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
index 6dc3f52..cfb2dfd 100644 (file)
--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
@@ -4770,7 +4770,7 @@ static void rtl8xxxu_tx(struct ieee80211_hw *hw,
        u16 rate_flag = tx_info->control.rates[0].flags;
        int tx_desc_size = priv->fops->tx_desc_size;
        int ret;
-       bool usedesc40, ampdu_enable, sgi = false;
+       bool usedesc40, ampdu_enable, sgi = false, short_preamble = false;
 
        if (skb_headroom(skb) < tx_desc_size) {
                dev_warn(dev,
@@ -4860,6 +4860,10 @@ static void rtl8xxxu_tx(struct ieee80211_hw *hw,
             (IEEE80211_HT_CAP_SGI_40 | IEEE80211_HT_CAP_SGI_20)))
                sgi = true;
 
+       if (rate_flag & IEEE80211_TX_RC_USE_SHORT_PREAMBLE ||
+           (sta && vif && vif->bss_conf.use_short_preamble))
+               short_preamble = true;
+
        seq_number = IEEE80211_SEQ_TO_SN(le16_to_cpu(hdr->seq_ctrl));
        if (!usedesc40) {
                tx_desc->txdw5 = cpu_to_le32(rate);
@@ -4888,8 +4892,7 @@ static void rtl8xxxu_tx(struct ieee80211_hw *hw,
                if (ieee80211_is_data_qos(hdr->frame_control))
                        tx_desc->txdw4 |= cpu_to_le32(TXDESC32_QOS);
 
-               if (rate_flag & IEEE80211_TX_RC_USE_SHORT_PREAMBLE ||
-                   (sta && vif && vif->bss_conf.use_short_preamble))
+               if (short_preamble)
                        tx_desc->txdw4 |= cpu_to_le32(TXDESC32_SHORT_PREAMBLE);
 
                if (sgi)
@@ -4935,8 +4938,7 @@ static void rtl8xxxu_tx(struct ieee80211_hw *hw,
                                cpu_to_le32(TXDESC40_RETRY_LIMIT_ENABLE);
                }
 
-               if (rate_flag & IEEE80211_TX_RC_USE_SHORT_PREAMBLE ||
-                   (sta && vif && vif->bss_conf.use_short_preamble))
+               if (short_preamble)
                        tx_desc40->txdw5 |=
                                cpu_to_le32(TXDESC40_SHORT_PREAMBLE);