[PATCH 4.5 038/128] ath10k: fix debugfs pktlog_filter write

Greg Kroah-Hartman
2016-06-05T22:39:40Z

From: Anilkumar Kolli <akolli@qti.qualcomm.com>

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@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
drivers/net/wireless/ath/ath10k/debug.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)

--- a/drivers/net/wireless/ath/ath10k/debug.c
+++ b/drivers/net/wireless/ath/ath10k/debug.c
@@ -2011,7 +2011,12 @@ static ssize_t ath10k_write_pktlog_filte
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",