[PATCH v2] mwifiex: Fix endianness for event TLV type TLV_BTCOEX_WL_SCANTIME

From: Prasun Maiti
Date: Thu Jun 30 2016 - 04:31:39 EST


The two members min_scan_time and max_scan_time of structure
"mwifiex_ie_types_btcoex_scan_time" are of two bytes each. The values
are assigned directtly from firmware without endian conversion handling.
So, wrong datas will get saved in big-endian systems.

This patch converts the values into cpu's byte order before assigning them
into the local members.

Signed-off-by: Prasun Maiti <prasunmaiti87@xxxxxxxxx>
---
Changes in v2:
- Fixed the following sparse compilation warnings:
* sta_event.c:477:55: warning: cast to restricted __le16
* sta_event.c:478:55: warning: cast to restricted __le16

drivers/net/wireless/marvell/mwifiex/fw.h | 4 ++--
drivers/net/wireless/marvell/mwifiex/sta_event.c | 4 ++--
2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/marvell/mwifiex/fw.h b/drivers/net/wireless/marvell/mwifiex/fw.h
index 8e4145a..03d3edf 100644
--- a/drivers/net/wireless/marvell/mwifiex/fw.h
+++ b/drivers/net/wireless/marvell/mwifiex/fw.h
@@ -1958,8 +1958,8 @@ struct mwifiex_ie_types_btcoex_scan_time {
struct mwifiex_ie_types_header header;
u8 coex_scan;
u8 reserved;
- u16 min_scan_time;
- u16 max_scan_time;
+ __le16 min_scan_time;
+ __le16 max_scan_time;
} __packed;

struct mwifiex_ie_types_btcoex_aggr_win_size {
diff --git a/drivers/net/wireless/marvell/mwifiex/sta_event.c b/drivers/net/wireless/marvell/mwifiex/sta_event.c
index 0104108..7dff452 100644
--- a/drivers/net/wireless/marvell/mwifiex/sta_event.c
+++ b/drivers/net/wireless/marvell/mwifiex/sta_event.c
@@ -474,8 +474,8 @@ void mwifiex_bt_coex_wlan_param_update_event(struct mwifiex_private *priv,
scantlv =
(struct mwifiex_ie_types_btcoex_scan_time *)tlv;
adapter->coex_scan = scantlv->coex_scan;
- adapter->coex_min_scan_time = scantlv->min_scan_time;
- adapter->coex_max_scan_time = scantlv->max_scan_time;
+ adapter->coex_min_scan_time = le16_to_cpu(scantlv->min_scan_time);
+ adapter->coex_max_scan_time = le16_to_cpu(scantlv->max_scan_time);
break;

default:
--
1.9.1