linux-kernel - [PATCH 3/3] staging: emxx_udc: Added missing le16_to

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Message-Id: <1541623464-49041-4-git-send-email-carmeli.tamir@gmail.com>
Date:   Wed,  7 Nov 2018 15:44:24 -0500
From:   Carmeli Tamir <carmeli.tamir@...il.com>
To:     carmeli.tamir@...il.com, gregkh@...uxfoundation.org,
        natechancellor@...il.com, chrisadr@...too.org,
        areklis909@...il.com, dan.carpenter@...cle.com,
        devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Subject: [PATCH 3/3] staging: emxx_udc: Added missing le16_to_cpu conversions

Fixed sparse tool warnings due to missing convesion from
le16 to cpu endienness. 

Signed-off-by: Carmeli Tamir <carmeli.tamir@...il.com>
---
 drivers/staging/emxx_udc/emxx_udc.c | 22 ++++++++++++----------
 1 file changed, 12 insertions(+), 10 deletions(-)

diff --git a/drivers/staging/emxx_udc/emxx_udc.c b/drivers/staging/emxx_udc/emxx_udc.c
index 3504277..bf7c5da 100644
--- a/drivers/staging/emxx_udc/emxx_udc.c
+++ b/drivers/staging/emxx_udc/emxx_udc.c
@@ -135,6 +135,7 @@ static void _nbu2ss_ep0_complete(struct usb_ep *_ep, struct usb_request *_req)
 {
 	u8		recipient;
 	u16		selector;
+	u16		wIndex;
 	u32		test_mode;
 	struct usb_ctrlrequest	*p_ctrl;
 	struct nbu2ss_udc *udc;
@@ -149,10 +150,11 @@ static void _nbu2ss_ep0_complete(struct usb_ep *_ep, struct usb_request *_req)
 			/*-------------------------------------------------*/
 			/* SET_FEATURE */
 			recipient = (u8)(p_ctrl->bRequestType & USB_RECIP_MASK);
-			selector  = p_ctrl->wValue;
+			selector  = le16_to_cpu(p_ctrl->wValue);
 			if ((recipient == USB_RECIP_DEVICE) &&
 			    (selector == USB_DEVICE_TEST_MODE)) {
-				test_mode = (u32)(p_ctrl->wIndex >> 8);
+				wIndex = le16_to_cpu(p_ctrl->wIndex);
+				test_mode = (u32)(wIndex >> 8);
 				_nbu2ss_set_test_mode(udc, test_mode);
 			}
 		}
@@ -1449,8 +1451,8 @@ static inline int _nbu2ss_req_feature(struct nbu2ss_udc *udc, bool bset)
 {
 	u8	recipient = (u8)(udc->ctrl.bRequestType & USB_RECIP_MASK);
 	u8	direction = (u8)(udc->ctrl.bRequestType & USB_DIR_IN);
-	u16	selector  = udc->ctrl.wValue;
-	u16	wIndex    = udc->ctrl.wIndex;
+	u16	selector  = le16_to_cpu(udc->ctrl.wValue);
+	u16	wIndex    = le16_to_cpu(udc->ctrl.wIndex);
 	u8	ep_adrs;
 	int	result = -EOPNOTSUPP;
 
@@ -1549,8 +1551,8 @@ static int std_req_get_status(struct nbu2ss_udc *udc)
 	if ((udc->ctrl.wValue != 0x0000) || (direction != USB_DIR_IN))
 		return result;
 
-	length = min_t(u16, udc->ctrl.wLength, sizeof(status_data));
-
+	length =
+		min_t(u16, le16_to_cpu(udc->ctrl.wLength), sizeof(status_data));
 	switch (recipient) {
 	case USB_RECIP_DEVICE:
 		if (udc->ctrl.wIndex == 0x0000) {
@@ -1565,8 +1567,8 @@ static int std_req_get_status(struct nbu2ss_udc *udc)
 		break;
 
 	case USB_RECIP_ENDPOINT:
-		if (0x0000 == (udc->ctrl.wIndex & 0xFF70)) {
-			ep_adrs = (u8)(udc->ctrl.wIndex & 0xFF);
+		if (0x0000 == (le16_to_cpu(udc->ctrl.wIndex) & 0xFF70)) {
+			ep_adrs = (u8)(le16_to_cpu(udc->ctrl.wIndex) & 0xFF);
 			result = _nbu2ss_get_ep_stall(udc, ep_adrs);
 
 			if (result > 0)
@@ -1606,7 +1608,7 @@ static int std_req_set_feature(struct nbu2ss_udc *udc)
 static int std_req_set_address(struct nbu2ss_udc *udc)
 {
 	int		result = 0;
-	u32		wValue = udc->ctrl.wValue;
+	u32		wValue = le16_to_cpu(udc->ctrl.wValue);
 
 	if ((udc->ctrl.bRequestType != 0x00)	||
 	    (udc->ctrl.wIndex != 0x0000)	||
@@ -1628,7 +1630,7 @@ static int std_req_set_address(struct nbu2ss_udc *udc)
 /*-------------------------------------------------------------------------*/
 static int std_req_set_configuration(struct nbu2ss_udc *udc)
 {
-	u32 config_value = (u32)(udc->ctrl.wValue & 0x00ff);
+	u32 config_value = (u32)(le16_to_cpu(udc->ctrl.wValue) & 0x00ff);
 
 	if ((udc->ctrl.wIndex != 0x0000)	||
 	    (udc->ctrl.wLength != 0x0000)	||
-- 
2.7.4