[3.19.y-ckt stable] Patch "ath10k: fix debugfs pktlog_filter write" has been added to the 3.19.y-ckt tree

[Kamal Mostafa]

This is a note to let you know that I have just added a patch titled

    ath10k: fix debugfs pktlog_filter write

to the linux-3.19.y-queue branch of the 3.19.y-ckt extended stable tree 
which can be found at:

    https://git.launchpad.net/~canonical-kernel/linux/+git/linux-stable-ckt/log/?h=linux-3.19.y-queue

This patch is scheduled to be released in version 3.19.8-ckt23.

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.19.y-ckt tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Kamal

---8<------------------------------------------------------------

>From 5231c3df80e39b18ec21825e912b3a9ae8fe2783 Mon Sep 17 00:00:00 2001
From: Anilkumar Kolli <akolli at qti.qualcomm.com>
Date: Fri, 11 Mar 2016 11:46:39 +0530
Subject: ath10k: fix debugfs pktlog_filter write

commit 9ddc486aa09a3413a6c492fcf160ce61bfccb7b1 upstream.

It is observed that, we are disabling the packet log if we write same
value to the pktlog_filter for the second time. Always enable pktlogs
on non zero filter.

Fixes: 90174455ae05 ("ath10k: add support to configure pktlog filter")
Signed-off-by: Anilkumar Kolli <akolli at qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo at qca.qualcomm.com>
Signed-off-by: Kamal Mostafa <kamal at canonical.com>
---
 drivers/net/wireless/ath/ath10k/debug.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath10k/debug.c b/drivers/net/wireless/ath/ath10k/debug.c
index a716758..8f5e41c 100644
--- a/drivers/net/wireless/ath/ath10k/debug.c
+++ b/drivers/net/wireless/ath/ath10k/debug.c
@@ -1760,7 +1760,12 @@ static ssize_t ath10k_write_pktlog_filter(struct file *file,
 		goto out;
 	}

-	if (filter && (filter != ar->debug.pktlog_filter)) {
+	if (filter == ar->debug.pktlog_filter) {
+		ret = count;
+		goto out;
+	}
+
+	if (filter) {
 		ret = ath10k_wmi_pdev_pktlog_enable(ar, filter);
 		if (ret) {
 			ath10k_warn(ar, "failed to enable pktlog filter %x: %d\n",
--
2.7.4