[PATCH] Bluetooth: mediatek: Fixed incorrect type in assignment

From: sean.wang
Date: Mon Mar 04 2019 - 19:14:41 EST


From: Sean Wang <sean.wang@xxxxxxxxxxxx>

Fixed warning: incorrect type in assignment reported by kbuild test robot.
The detailed warning is shown as below.

make ARCH=x86_64 allmodconfig
make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'

All warnings (new ones prefixed by >>):

btmtkuart.c:671:18: sparse: warning: incorrect type in assignment
(different base types)
btmtkuart.c:671:18: sparse: expected unsigned int [usertype] baudrate
btmtkuart.c:671:18: sparse: got restricted __le32 [usertype]

sparse warnings: (new ones prefixed by >>)
btmtkuart.c:671:18: sparse: warning: incorrect type in assignment
(different base types)
btmtkuart.c:671:18: sparse: expected unsigned int [usertype] baudrate
btmtkuart.c:671:18: sparse: got restricted __le32 [usertype]

vim +671 drivers/bluetooth/btmtkuart.c

659
660 static int btmtkuart_change_baudrate(struct hci_dev *hdev)
661 {
662 struct btmtkuart_dev *bdev = hci_get_drvdata(hdev);
663 struct btmtk_hci_wmt_params wmt_params;
664 u32 baudrate;
665 u8 param;
666 int err;
667
668 /* Indicate the device to enter the probe state the host is
669 * ready to change a new baudrate.
670 */
> 671 baudrate = cpu_to_le32(bdev->desired_speed);
672 wmt_params.op = MTK_WMT_HIF;

Fixes: 22eaf6c9946a ("Bluetooth: mediatek: add support for MediaTek MT7663U and MT7668U UART devices")
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Signed-off-by: Sean Wang <sean.wang@xxxxxxxxxxxx>
---
drivers/bluetooth/btmtkuart.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/bluetooth/btmtkuart.c b/drivers/bluetooth/btmtkuart.c
index b0b680dd69f4..f5dbeec8e274 100644
--- a/drivers/bluetooth/btmtkuart.c
+++ b/drivers/bluetooth/btmtkuart.c
@@ -661,7 +661,7 @@ static int btmtkuart_change_baudrate(struct hci_dev *hdev)
{
struct btmtkuart_dev *bdev = hci_get_drvdata(hdev);
struct btmtk_hci_wmt_params wmt_params;
- u32 baudrate;
+ __le32 baudrate;
u8 param;
int err;

--
2.18.0