net: smsc911x: Move interrupt handler before open

In preparation for the allocating/enabling interrupts
in the ndo_open routine move the irq handler before it.

Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/smsc/smsc911x.c b/drivers/net/ethernet/smsc/smsc911x.c
index 823ad3f3716d82ae2face76285589e3b49ee4605..c2e56f06713aa83d5eec5db71906c7cd16ba6430 100644 (file)
--- a/drivers/net/ethernet/smsc/smsc911x.c
+++ b/drivers/net/ethernet/smsc/smsc911x.c
@@ -1507,6 +1507,67 @@ static void smsc911x_disable_irq_chip(struct net_device *dev)
        smsc911x_reg_write(pdata, INT_STS, 0xFFFFFFFF);
 }
 
+static irqreturn_t smsc911x_irqhandler(int irq, void *dev_id)
+{
+       struct net_device *dev = dev_id;
+       struct smsc911x_data *pdata = netdev_priv(dev);
+       u32 intsts = smsc911x_reg_read(pdata, INT_STS);
+       u32 inten = smsc911x_reg_read(pdata, INT_EN);
+       int serviced = IRQ_NONE;
+       u32 temp;
+
+       if (unlikely(intsts & inten & INT_STS_SW_INT_)) {
+               temp = smsc911x_reg_read(pdata, INT_EN);
+               temp &= (~INT_EN_SW_INT_EN_);
+               smsc911x_reg_write(pdata, INT_EN, temp);
+               smsc911x_reg_write(pdata, INT_STS, INT_STS_SW_INT_);
+               pdata->software_irq_signal = 1;
+               smp_wmb();
+               serviced = IRQ_HANDLED;
+       }
+
+       if (unlikely(intsts & inten & INT_STS_RXSTOP_INT_)) {
+               /* Called when there is a multicast update scheduled and
+                * it is now safe to complete the update */
+               SMSC_TRACE(pdata, intr, "RX Stop interrupt");
+               smsc911x_reg_write(pdata, INT_STS, INT_STS_RXSTOP_INT_);
+               if (pdata->multicast_update_pending)
+                       smsc911x_rx_multicast_update_workaround(pdata);
+               serviced = IRQ_HANDLED;
+       }
+
+       if (intsts & inten & INT_STS_TDFA_) {
+               temp = smsc911x_reg_read(pdata, FIFO_INT);
+               temp |= FIFO_INT_TX_AVAIL_LEVEL_;
+               smsc911x_reg_write(pdata, FIFO_INT, temp);
+               smsc911x_reg_write(pdata, INT_STS, INT_STS_TDFA_);
+               netif_wake_queue(dev);
+               serviced = IRQ_HANDLED;
+       }
+
+       if (unlikely(intsts & inten & INT_STS_RXE_)) {
+               SMSC_TRACE(pdata, intr, "RX Error interrupt");
+               smsc911x_reg_write(pdata, INT_STS, INT_STS_RXE_);
+               serviced = IRQ_HANDLED;
+       }
+
+       if (likely(intsts & inten & INT_STS_RSFL_)) {
+               if (likely(napi_schedule_prep(&pdata->napi))) {
+                       /* Disable Rx interrupts */
+                       temp = smsc911x_reg_read(pdata, INT_EN);
+                       temp &= (~INT_EN_RSFL_EN_);
+                       smsc911x_reg_write(pdata, INT_EN, temp);
+                       /* Schedule a NAPI poll */
+                       __napi_schedule(&pdata->napi);
+               } else {
+                       SMSC_WARN(pdata, rx_err, "napi_schedule_prep failed");
+               }
+               serviced = IRQ_HANDLED;
+       }
+
+       return serviced;
+}
+
 static int smsc911x_open(struct net_device *dev)
 {
        struct smsc911x_data *pdata = netdev_priv(dev);
@@ -1820,67 +1881,6 @@ static void smsc911x_set_multicast_list(struct net_device *dev)
        spin_unlock_irqrestore(&pdata->mac_lock, flags);
 }
 
-static irqreturn_t smsc911x_irqhandler(int irq, void *dev_id)
-{
-       struct net_device *dev = dev_id;
-       struct smsc911x_data *pdata = netdev_priv(dev);
-       u32 intsts = smsc911x_reg_read(pdata, INT_STS);
-       u32 inten = smsc911x_reg_read(pdata, INT_EN);
-       int serviced = IRQ_NONE;
-       u32 temp;
-
-       if (unlikely(intsts & inten & INT_STS_SW_INT_)) {
-               temp = smsc911x_reg_read(pdata, INT_EN);
-               temp &= (~INT_EN_SW_INT_EN_);
-               smsc911x_reg_write(pdata, INT_EN, temp);
-               smsc911x_reg_write(pdata, INT_STS, INT_STS_SW_INT_);
-               pdata->software_irq_signal = 1;
-               smp_wmb();
-               serviced = IRQ_HANDLED;
-       }
-
-       if (unlikely(intsts & inten & INT_STS_RXSTOP_INT_)) {
-               /* Called when there is a multicast update scheduled and
-                * it is now safe to complete the update */
-               SMSC_TRACE(pdata, intr, "RX Stop interrupt");
-               smsc911x_reg_write(pdata, INT_STS, INT_STS_RXSTOP_INT_);
-               if (pdata->multicast_update_pending)
-                       smsc911x_rx_multicast_update_workaround(pdata);
-               serviced = IRQ_HANDLED;
-       }
-
-       if (intsts & inten & INT_STS_TDFA_) {
-               temp = smsc911x_reg_read(pdata, FIFO_INT);
-               temp |= FIFO_INT_TX_AVAIL_LEVEL_;
-               smsc911x_reg_write(pdata, FIFO_INT, temp);
-               smsc911x_reg_write(pdata, INT_STS, INT_STS_TDFA_);
-               netif_wake_queue(dev);
-               serviced = IRQ_HANDLED;
-       }
-
-       if (unlikely(intsts & inten & INT_STS_RXE_)) {
-               SMSC_TRACE(pdata, intr, "RX Error interrupt");
-               smsc911x_reg_write(pdata, INT_STS, INT_STS_RXE_);
-               serviced = IRQ_HANDLED;
-       }
-
-       if (likely(intsts & inten & INT_STS_RSFL_)) {
-               if (likely(napi_schedule_prep(&pdata->napi))) {
-                       /* Disable Rx interrupts */
-                       temp = smsc911x_reg_read(pdata, INT_EN);
-                       temp &= (~INT_EN_RSFL_EN_);
-                       smsc911x_reg_write(pdata, INT_EN, temp);
-                       /* Schedule a NAPI poll */
-                       __napi_schedule(&pdata->napi);
-               } else {
-                       SMSC_WARN(pdata, rx_err, "napi_schedule_prep failed");
-               }
-               serviced = IRQ_HANDLED;
-       }
-
-       return serviced;
-}
-
 #ifdef CONFIG_NET_POLL_CONTROLLER
 static void smsc911x_poll_controller(struct net_device *dev)
 {