linux-kernel - [PATCH AUTOSEL for 3.18 020/102] staging: wlan-ng: prism2mgmt.c: fixed a double endian conversion before calling hfa384x_drvr_setconfig16, also fixes relative sparse warning

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Date:   Mon, 19 Mar 2018 16:11:52 +0000
From:   Sasha Levin <Alexander.Levin@...rosoft.com>
To:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "stable@...r.kernel.org" <stable@...r.kernel.org>
CC:     Andrea della Porta <sfaragnaus@...il.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Sasha Levin <Alexander.Levin@...rosoft.com>
Subject: [PATCH AUTOSEL for 3.18 020/102] staging: wlan-ng: prism2mgmt.c:
 fixed a double endian conversion before calling hfa384x_drvr_setconfig16,
 also fixes relative sparse warning

From: Andrea della Porta <sfaragnaus@...il.com>

[ Upstream commit dea20579a69ab68cdca6adf79bb7c0c162eb9b72 ]

staging: wlan-ng: prism2mgmt.c: This patches fixes a double endian conversion.
cpu_to_le16() was called twice first in prism2mgmt_scan and again inside
hfa384x_drvr_setconfig16() for the same variable, hence it was swapped
twice. Incidentally, it also fixed the following sparse warning:

drivers/staging/wlan-ng/prism2mgmt.c:173:30: warning: incorrect type in assignment (different base types)
drivers/staging/wlan-ng/prism2mgmt.c:173:30:    expected unsigned short [unsigned] [usertype] word
drivers/staging/wlan-ng/prism2mgmt.c:173:30:    got restricted __le16 [usertype] <noident>

Unfortunately, only compile tested.

Signed-off-by: Andrea della Porta <sfaragnaus@...il.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Sasha Levin <alexander.levin@...rosoft.com>
---
 drivers/staging/wlan-ng/prism2mgmt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/wlan-ng/prism2mgmt.c b/drivers/staging/wlan-ng/prism2mgmt.c
index 013a6240f193..c1ad0aea23b9 100644
--- a/drivers/staging/wlan-ng/prism2mgmt.c
+++ b/drivers/staging/wlan-ng/prism2mgmt.c
@@ -169,7 +169,7 @@ int prism2mgmt_scan(wlandevice_t *wlandev, void *msgp)
 				     hw->ident_sta_fw.variant) >
 	    HFA384x_FIRMWARE_VERSION(1, 5, 0)) {
 		if (msg->scantype.data != P80211ENUM_scantype_active)
-			word = cpu_to_le16(msg->maxchanneltime.data);
+			word = msg->maxchanneltime.data;
 		else
 			word = 0;
 
-- 
2.14.1