This is a note to let you know that I've just added the patch titled
rtlwifi: rtl8192ee: Fix TX hang due to failure to update TX write point
to the 3.19-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-rtl8192ee-fix-tx-hang-due-to-failure-to-update-tx-write-point.patch
and it can be found in the queue-3.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 6e5f4436162848289f071be38ee6b87dc8ea653d Mon Sep 17 00:00:00 2001
From: Troy Tan <[email protected]>
Date: Tue, 20 Jan 2015 11:01:23 -0600
Subject: rtlwifi: rtl8192ee: Fix TX hang due to failure to update TX write point
From: Troy Tan <[email protected]>
commit 6e5f4436162848289f071be38ee6b87dc8ea653d upstream.
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 <[email protected]>
Signed-off-by: Larry Finger <[email protected]>
Signed-off-by: Kalle Valo <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/net/wireless/rtlwifi/rtl8192ee/trx.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- a/drivers/net/wireless/rtlwifi/rtl8192ee/trx.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192ee/trx.c
@@ -1207,8 +1207,7 @@ bool rtl92ee_is_tx_desc_closed(struct ie
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;
Patches currently in stable-queue which might be from [email protected]
are
queue-3.19/rtlwifi-rtl8192ee-fix-dma-stalls.patch
queue-3.19/rtlwifi-rtl8192ee-fix-adhoc-fail.patch
queue-3.19/rtlwifi-rtl8192ee-fix-parsing-of-received-packet.patch
queue-3.19/rtlwifi-rtl8192ee-fix-tx-hang-due-to-failure-to-update-tx-write-point.patch
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