can: ti_hecc: ti_hecc_mailbox_read(): remove set but not used variable 'mbx_mask'

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/net/can/ti_hecc.c: In function 'ti_hecc_mailbox_read':
drivers/net/can/ti_hecc.c:533:12: warning:
 variable 'mbx_mask' set but not used [-Wunused-but-set-variable]

It is never used so can be removed.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Jeroen Hofstee <jhofstee@victronenergy.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

diff --git a/drivers/net/can/ti_hecc.c b/drivers/net/can/ti_hecc.c
index 2bfffa8..f8b19ee 100644 (file)
--- a/drivers/net/can/ti_hecc.c
+++ b/drivers/net/can/ti_hecc.c
@@ -526,9 +526,8 @@ static unsigned int ti_hecc_mailbox_read(struct can_rx_offload *offload,
                                         u32 *timestamp, unsigned int mbxno)
 {
        struct ti_hecc_priv *priv = rx_offload_to_priv(offload);
-       u32 data, mbx_mask;
+       u32 data;
 
-       mbx_mask = BIT(mbxno);
        data = hecc_read_mbx(priv, mbxno, HECC_CANMID);
        if (data & HECC_CANMID_IDE)
                cf->can_id = (data & CAN_EFF_MASK) | CAN_EFF_FLAG;