Merge tag 'master-2014-12-01' of git://git.kernel.org/pub/scm/linux/k…

…ernel/git/linville/wireless

John W. Linville says:

====================
pull request: wireless 2014-12-03

One last(?) batch of fixes hoping to make 3.18...

In this episode, we have another trio of rtlwifi fixes
repairing a little more damage from the major update of the
rtlwifi-family of drivers.  These editing mistakes caused some
memory corruption and missed a flag critical to proper interrupt
handling.  Together, these fix the kernel regression reported at
https://bugzilla.kernel.org/show_bug.cgi?id=88951 by Catalin Iacob.

Please let me know if there are problems!
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/wireless/rtlwifi/rtl8192ce/hw.c

@@ -1287,6 +1287,7 @@ void rtl92ce_enable_interrupt(struct ieee80211_hw *hw)
 
 	rtl_write_dword(rtlpriv, REG_HIMR, rtlpci->irq_mask[0] & 0xFFFFFFFF);
 	rtl_write_dword(rtlpriv, REG_HIMRE, rtlpci->irq_mask[1] & 0xFFFFFFFF);
+	rtlpci->irq_enabled = true;
 }
 
 void rtl92ce_disable_interrupt(struct ieee80211_hw *hw)
@@ -1296,7 +1297,7 @@ void rtl92ce_disable_interrupt(struct ieee80211_hw *hw)
 
 	rtl_write_dword(rtlpriv, REG_HIMR, IMR8190_DISABLED);
 	rtl_write_dword(rtlpriv, REG_HIMRE, IMR8190_DISABLED);
-	synchronize_irq(rtlpci->pdev->irq);
+	rtlpci->irq_enabled = false;
 }
 
 static void _rtl92ce_poweroff_adapter(struct ieee80211_hw *hw)

drivers/net/wireless/rtlwifi/rtl8192ce/sw.c

@@ -228,6 +228,7 @@ static struct rtl_hal_ops rtl8192ce_hal_ops = {
 	.led_control = rtl92ce_led_control,
 	.set_desc = rtl92ce_set_desc,
 	.get_desc = rtl92ce_get_desc,
+	.is_tx_desc_closed = rtl92ce_is_tx_desc_closed,
 	.tx_polling = rtl92ce_tx_polling,
 	.enable_hw_sec = rtl92ce_enable_hw_security_config,
 	.set_key = rtl92ce_set_key,
@@ -271,6 +272,8 @@ static struct rtl_hal_cfg rtl92ce_hal_cfg = {
 	.maps[MAC_RCR_ACRC32] = ACRC32,
 	.maps[MAC_RCR_ACF] = ACF,
 	.maps[MAC_RCR_AAP] = AAP,
+	.maps[MAC_HIMR] = REG_HIMR,
+	.maps[MAC_HIMRE] = REG_HIMRE,
 
 	.maps[EFUSE_TEST] = REG_EFUSE_TEST,
 	.maps[EFUSE_CTRL] = REG_EFUSE_CTRL,

drivers/net/wireless/rtlwifi/rtl8192ce/trx.c

@@ -720,16 +720,15 @@ u32 rtl92ce_get_desc(u8 *p_desc, bool istx, u8 desc_name)
 			break;
 		}
 	} else {
-		struct rx_desc_92c *pdesc = (struct rx_desc_92c *)p_desc;
 		switch (desc_name) {
 		case HW_DESC_OWN:
-			ret = GET_RX_DESC_OWN(pdesc);
+			ret = GET_RX_DESC_OWN(p_desc);
 			break;
 		case HW_DESC_RXPKT_LEN:
-			ret = GET_RX_DESC_PKT_LEN(pdesc);
+			ret = GET_RX_DESC_PKT_LEN(p_desc);
 			break;
 		case HW_DESC_RXBUFF_ADDR:
-			ret = GET_RX_STATUS_DESC_BUFF_ADDR(pdesc);
+			ret = GET_RX_DESC_BUFF_ADDR(p_desc);
 			break;
 		default:
 			RT_ASSERT(false, "ERR rxdesc :%d not process\n",
@@ -740,6 +739,23 @@ u32 rtl92ce_get_desc(u8 *p_desc, bool istx, u8 desc_name)
 	return ret;
 }
 
+bool rtl92ce_is_tx_desc_closed(struct ieee80211_hw *hw,
+			       u8 hw_queue, u16 index)
+{
+	struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
+	struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[hw_queue];
+	u8 *entry = (u8 *)(&ring->desc[ring->idx]);
+	u8 own = (u8)rtl92ce_get_desc(entry, true, HW_DESC_OWN);
+
+	/*beacon packet will only use the first
+	 *descriptor defautly,and the own may not
+	 *be cleared by the hardware
+	 */
+	if (own)
+		return false;
+	return true;
+}
+
 void rtl92ce_tx_polling(struct ieee80211_hw *hw, u8 hw_queue)
 {
 	struct rtl_priv *rtlpriv = rtl_priv(hw);

drivers/net/wireless/rtlwifi/rtl8192ce/trx.h

@@ -723,6 +723,8 @@ bool rtl92ce_rx_query_desc(struct ieee80211_hw *hw,
 void rtl92ce_set_desc(struct ieee80211_hw *hw, u8 *pdesc, bool istx,
 		      u8 desc_name, u8 *val);
 u32 rtl92ce_get_desc(u8 *pdesc, bool istx, u8 desc_name);
+bool rtl92ce_is_tx_desc_closed(struct ieee80211_hw *hw,
+			       u8 hw_queue, u16 index);
 void rtl92ce_tx_polling(struct ieee80211_hw *hw, u8 hw_queue);
 void rtl92ce_tx_fill_cmddesc(struct ieee80211_hw *hw, u8 *pdesc,
 			     bool b_firstseg, bool b_lastseg,