rtlwifi: rtl8188ee: rtl8192com: rtl8192cu: rtl8192ee: rtl8723ae: rtl87323be: rtl8821ae: Use common cmd_send_packet

A locking problem was found in routine _rtl92ee_cmd_send_packet() that led
to system freezes. Upon inspection, several drivers had the same problem;
however, the routines all used the same code. The common code has been
moved into rtlwifi.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 31 insertions, 0 deletions

diff --git a/drivers/net/wireless/rtlwifi/core.c b/drivers/net/wireless/rtlwifi/core.c
index 10a3bc6dca80..f6179bc06086 100644
--- a/drivers/net/wireless/rtlwifi/core.c
+++ b/drivers/net/wireless/rtlwifi/core.c
@@ -1768,6 +1768,37 @@ bool rtl_hal_pwrseqcmdparsing(struct rtl_priv *rtlpriv, u8 cut_version,
         return true;
 }
 EXPORT_SYMBOL(rtl_hal_pwrseqcmdparsing);
+
+bool rtl_cmd_send_packet(struct ieee80211_hw *hw, struct sk_buff *skb)
+{
+        struct rtl_priv *rtlpriv = rtl_priv(hw);
+        struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
+        struct rtl8192_tx_ring *ring;
+        struct rtl_tx_desc *pdesc;
+        unsigned long flags;
+        struct sk_buff *pskb = NULL;
+
+        ring = &rtlpci->tx_ring[BEACON_QUEUE];
+
+        spin_lock_irqsave(&rtlpriv->locks.irq_th_lock, flags);
+        pskb = __skb_dequeue(&ring->queue);
+        if (pskb)
+                kfree_skb(pskb);
+
+        /*this is wrong, fill_tx_cmddesc needs update*/
+        pdesc = &ring->desc[0];
+
+        rtlpriv->cfg->ops->fill_tx_cmddesc(hw, (u8 *)pdesc, 1, 1, skb);
+
+        __skb_queue_tail(&ring->queue, skb);
+
+        spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock, flags);
+
+        rtlpriv->cfg->ops->tx_polling(hw, BEACON_QUEUE);
+
+        return true;
+}
+EXPORT_SYMBOL(rtl_cmd_send_packet);
 const struct ieee80211_ops rtl_ops = {
         .start = rtl_op_start,
         .stop = rtl_op_stop,