Patch "rtlwifi: rtl_pci: Fix the bug when inactiveps is enabled." has been added to the 4.4-stable tree

Patch "rtlwifi: rtl_pci: Fix the bug when inactiveps is enabled." has been added to the 4.4-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    rtlwifi: rtl_pci: Fix the bug when inactiveps is enabled.

to the 4.4-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     rtlwifi-rtl_pci-fix-the-bug-when-inactiveps-is-enabled.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From foo@baz Thu Mar 22 14:57:32 CET 2018
From: Tsang-Shian Lin <thlin@realtek.com>
Date: Sat, 9 Dec 2017 11:37:10 -0600
Subject: rtlwifi: rtl_pci: Fix the bug when inactiveps is enabled.

From: Tsang-Shian Lin <thlin@realtek.com>


[ Upstream commit b7573a0a27bfa8270dea9b145448f6884b7cacc1 ]

Reset the driver current tx read/write index to zero when inactiveps
nic out of sync with HW state. Wrong driver tx read/write index will
cause Tx fail.

Signed-off-by: Tsang-Shian Lin <thlin@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Yan-Hsuan Chuang <yhchuang@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/wireless/realtek/rtlwifi/pci.c |    7 +++++++
 1 file changed, 7 insertions(+)

--- a/drivers/net/wireless/realtek/rtlwifi/pci.c
+++ b/drivers/net/wireless/realtek/rtlwifi/pci.c
@@ -1572,7 +1572,14 @@ int rtl_pci_reset_trx_ring(struct ieee80
 				dev_kfree_skb_irq(skb);
 				ring->idx = (ring->idx + 1) % ring->entries;
 			}
+
+			if (rtlpriv->use_new_trx_flow) {
+				rtlpci->tx_ring[i].cur_tx_rp = 0;
+				rtlpci->tx_ring[i].cur_tx_wp = 0;
+			}
+
 			ring->idx = 0;
+			ring->entries = rtlpci->txringcount[i];
 		}
 	}
 	spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock, flags);


Patches currently in stable-queue which might be from thlin@realtek.com are

queue-4.4/rtlwifi-rtl_pci-fix-the-bug-when-inactiveps-is-enabled.patch