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Commit f5ef6dc4 authored by Tsang-Shian Lin's avatar Tsang-Shian Lin Committed by Greg Kroah-Hartman
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rtlwifi: rtl_pci: Fix the bug when inactiveps is enabled. 




[ 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: default avatarTsang-Shian Lin <thlin@realtek.com>
Signed-off-by: default avatarPing-Ke Shih <pkshih@realtek.com>
Signed-off-by: default avatarLarry 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: default avatarKalle Valo <kvalo@codeaurora.org>
Signed-off-by: default avatarSasha Levin <alexander.levin@microsoft.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 84df9b2a

drivers/net/wireless/realtek/rtlwifi/pci.c

+7 −0
Original line number Diff line number Diff line
@@ -1572,7 +1572,14 @@ int rtl_pci_reset_trx_ring(struct ieee80211_hw *hw) 
				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);