From 6e5f4436162848289f071be38ee6b87dc8ea653d Mon Sep 17 00:00:00 2001 From: Troy Tan Date: Tue, 20 Jan 2015 11:01:23 -0600 Subject: [PATCH] rtlwifi: rtl8192ee: Fix TX hang due to failure to update TX write point Initially, the routine to update the write point in the FIFO buffer was coded to save CPU time by not doing the calculation every interrupt. This was an error and results in TX hangs. Signed-off-by: Troy Tan Signed-off-by: Larry Finger Cc: Stable [V3.18] Signed-off-by: Kalle Valo --- drivers/net/wireless/rtlwifi/rtl8192ee/trx.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/net/wireless/rtlwifi/rtl8192ee/trx.c b/drivers/net/wireless/rtlwifi/rtl8192ee/trx.c index 55d1da5e162b..04b91aade21d 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192ee/trx.c +++ b/drivers/net/wireless/rtlwifi/rtl8192ee/trx.c @@ -1027,8 +1027,7 @@ bool rtl92ee_is_tx_desc_closed(struct ieee80211_hw *hw, u8 hw_queue, u16 index) static u8 stop_report_cnt; struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[hw_queue]; - /*checking Read/Write Point each interrupt wastes CPU */ - if (stop_report_cnt > 15 || !rtlpriv->link_info.busytraffic) { + { u16 point_diff = 0; u16 cur_tx_rp, cur_tx_wp; u32 tmpu32 = 0; -- 2.11.0