This is a note to let you know that I've just added the patch titled
mwifiex: fix Tx timeout issue
to the 3.4-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:
mwifiex-fix-tx-timeout-issue.patch
and it can be found in the queue-3.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From d76744a93246eccdca1106037e8ee29debf48277 Mon Sep 17 00:00:00 2001
From: Amitkumar Karwar <[email protected]>
Date: Fri, 20 Jun 2014 11:45:25 -0700
Subject: mwifiex: fix Tx timeout issue
From: Amitkumar Karwar <[email protected]>
commit d76744a93246eccdca1106037e8ee29debf48277 upstream.
https://bugzilla.kernel.org/show_bug.cgi?id=70191
https://bugzilla.kernel.org/show_bug.cgi?id=77581
It is observed that sometimes Tx packet is downloaded without
adding driver's txpd header. This results in firmware parsing
garbage data as packet length. Sometimes firmware is unable
to read the packet if length comes out as invalid. This stops
further traffic and timeout occurs.
The root cause is uninitialized fields in tx_info(skb->cb) of
packet used to get garbage values. In this case if
MWIFIEX_BUF_FLAG_REQUEUED_PKT flag is mistakenly set, txpd
header was skipped. This patch makes sure that tx_info is
correctly initialized to fix the problem.
Reported-by: Andrew Wiley <[email protected]>
Reported-by: Linus Gasser <[email protected]>
Reported-by: Michael Hirsch <[email protected]>
Tested-by: Xinming Hu <[email protected]>
Signed-off-by: Amitkumar Karwar <[email protected]>
Signed-off-by: Maithili Hinge <[email protected]>
Signed-off-by: Avinash Patil <[email protected]>
Signed-off-by: Bing Zhao <[email protected]>
Signed-off-by: John W. Linville <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/net/wireless/mwifiex/main.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/net/wireless/mwifiex/main.c
+++ b/drivers/net/wireless/mwifiex/main.c
@@ -457,6 +457,7 @@ mwifiex_hard_start_xmit(struct sk_buff *
}
tx_info = MWIFIEX_SKB_TXCB(skb);
+ memset(tx_info, 0, sizeof(*tx_info));
tx_info->bss_num = priv->bss_num;
tx_info->bss_type = priv->bss_type;
mwifiex_fill_buffer(skb);
Patches currently in stable-queue which might be from [email protected] are
queue-3.4/mwifiex-fix-tx-timeout-issue.patch
--
To unsubscribe from this list: send the line "unsubscribe stable" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
