can: mscan: remove obsolete variable open_time

The variable open_time in the struct mscan_priv was used to protect
mscan_do_set_mode() only to be called, if the interface is up. Now the CAN
device infrastructure takes care of this.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

2 files changed, 0 insertions, 9 deletions

diff --git a/drivers/net/can/mscan/mscan.c b/drivers/net/can/mscan/mscan.c
index 2b104d5f422c..e6b40954e204 100644
--- a/drivers/net/can/mscan/mscan.c
+++ b/drivers/net/can/mscan/mscan.c
@@ -517,12 +517,8 @@ static irqreturn_t mscan_isr(int irq, void *dev_id)
 
 static int mscan_do_set_mode(struct net_device *dev, enum can_mode mode)
 {
-        struct mscan_priv *priv = netdev_priv(dev);
         int ret = 0;
 
-        if (!priv->open_time)
-                return -EINVAL;
-
         switch (mode) {
         case CAN_MODE_START:
                 ret = mscan_restart(dev);
@@ -590,8 +586,6 @@ static int mscan_open(struct net_device *dev)
                 goto exit_napi_disable;
         }
 
-        priv->open_time = jiffies;
-
         if (priv->can.ctrlmode & CAN_CTRLMODE_LISTENONLY)
                 setbits8(&regs->canctl1, MSCAN_LISTEN);
         else
@@ -606,7 +600,6 @@ static int mscan_open(struct net_device *dev)
         return 0;
 
 exit_free_irq:
-        priv->open_time = 0;
         free_irq(dev->irq, dev);
 exit_napi_disable:
         napi_disable(&priv->napi);
@@ -627,7 +620,6 @@ static int mscan_close(struct net_device *dev)
         mscan_set_mode(dev, MSCAN_INIT_MODE);
         close_candev(dev);
         free_irq(dev->irq, dev);
-        priv->open_time = 0;
 
         return 0;
 }
diff --git a/drivers/net/can/mscan/mscan.h b/drivers/net/can/mscan/mscan.h
index b43e9f5d3268..af2ed8baf0a3 100644
--- a/drivers/net/can/mscan/mscan.h
+++ b/drivers/net/can/mscan/mscan.h
@@ -281,7 +281,6 @@ struct tx_queue_entry {
 struct mscan_priv {
         struct can_priv can;    /* must be the first member */
         unsigned int type;      /* MSCAN type variants */
-        long open_time;
         unsigned long flags;
         void __iomem *reg_base; /* ioremap'ed address to registers */
         u8 shadow_statflg;