drivers/net/tokenring: fix sparse warning: cast truncates bits from const value

Impact: Remove the write-only field 'current_ring_status' completely.

Fix this sparse warnings:
  drivers/net/tokenring/smctr.c:4410:52: warning: cast truncates bits from constant value (100 becomes 0)
  drivers/net/tokenring/smctr.c:4415:52: warning: cast truncates bits from constant value (400 becomes 0)
  drivers/net/tokenring/smctr.c:4420:52: warning: cast truncates bits from constant value (800 becomes 0)
  drivers/net/tokenring/smctr.c:4425:52: warning: cast truncates bits from constant value (1000 becomes 0)
  drivers/net/tokenring/smctr.c:4430:52: warning: cast truncates bits from constant value (2000 becomes 0)
  drivers/net/tokenring/smctr.c:4435:52: warning: cast truncates bits from constant value (4000 becomes 0)
  drivers/net/tokenring/smctr.c:4440:52: warning: cast truncates bits from constant value (8000 becomes 0)
Signed-off-by: NHannes Eder <hannes@hanneseder.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/tokenring/smctr.c

@@ -4393,52 +4393,42 @@ static int smctr_ring_status_chg(struct net_device *dev)
         {
                 case RING_RECOVERY:
                         printk(KERN_INFO "%s: Ring Recovery\n", dev->name);
-                        tp->current_ring_status |= RING_RECOVERY;
                         break;
 
                 case SINGLE_STATION:
                         printk(KERN_INFO "%s: Single Statinon\n", dev->name);
-                        tp->current_ring_status |= SINGLE_STATION;
                         break;
 
                 case COUNTER_OVERFLOW:
                         printk(KERN_INFO "%s: Counter Overflow\n", dev->name);
-                        tp->current_ring_status |= COUNTER_OVERFLOW;
                         break;
 
                 case REMOVE_RECEIVED:
                         printk(KERN_INFO "%s: Remove Received\n", dev->name);
-                        tp->current_ring_status |= REMOVE_RECEIVED;
                         break;
 
                 case AUTO_REMOVAL_ERROR:
                         printk(KERN_INFO "%s: Auto Remove Error\n", dev->name);
-                        tp->current_ring_status |= AUTO_REMOVAL_ERROR;
                         break;
 
                 case LOBE_WIRE_FAULT:
                         printk(KERN_INFO "%s: Lobe Wire Fault\n", dev->name);
-                        tp->current_ring_status |= LOBE_WIRE_FAULT;
                         break;
 
                 case TRANSMIT_BEACON:
                         printk(KERN_INFO "%s: Transmit Beacon\n", dev->name);
-                        tp->current_ring_status |= TRANSMIT_BEACON;
                         break;
 
                 case SOFT_ERROR:
                         printk(KERN_INFO "%s: Soft Error\n", dev->name);
-                        tp->current_ring_status |= SOFT_ERROR;
                         break;
 
                 case HARD_ERROR:
                         printk(KERN_INFO "%s: Hard Error\n", dev->name);
-                        tp->current_ring_status |= HARD_ERROR;
                         break;
 
                 case SIGNAL_LOSS:
                         printk(KERN_INFO "%s: Signal Loss\n", dev->name);
-                        tp->current_ring_status |= SIGNAL_LOSS;
                         break;
 
                 default:

drivers/net/tokenring/smctr.h

@@ -977,7 +977,6 @@ typedef struct net_local {
 	__u8		monitor_state_ready;
 	__u16		ring_status;
 	__u8		ring_status_flags;
-	__u8		current_ring_status;
 	__u8		state;
 
 	__u8		join_state;