claw: remove unused return code handling
Heiko Carstens [Thu, 12 May 2011 18:45:04 +0000 (18:45 +0000)]
Remove unused return code handling. The claw driver is mostly dead, so
just make sure it keeps compiling without warnings.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/s390/net/claw.c

index da8aa75..f1fa248 100644 (file)
@@ -845,12 +845,10 @@ claw_irq_tasklet ( unsigned long data )
 {
        struct chbk * p_ch;
         struct net_device  *dev;
-        struct claw_privbk *       privptr;
 
        p_ch = (struct chbk *) data;
         dev = (struct net_device *)p_ch->ndev;
        CLAW_DBF_TEXT(4, trace, "IRQtask");
-       privptr = (struct claw_privbk *)dev->ml_priv;
         unpack_read(dev);
         clear_bit(CLAW_BH_ACTIVE, (void *)&p_ch->flag_a);
        CLAW_DBF_TEXT(4, trace, "TskletXt");
@@ -1026,7 +1024,6 @@ claw_write_next ( struct chbk * p_ch )
         struct net_device  *dev;
         struct claw_privbk *privptr=NULL;
        struct sk_buff *pk_skb;
-       int     rc;
 
        CLAW_DBF_TEXT(4, trace, "claw_wrt");
         if (p_ch->claw_state == CLAW_STOP)
@@ -1038,7 +1035,7 @@ claw_write_next ( struct chbk * p_ch )
            !skb_queue_empty(&p_ch->collect_queue)) {
                pk_skb = claw_pack_skb(privptr);
                while (pk_skb != NULL) {
-                       rc = claw_hw_tx( pk_skb, dev,1);
+                       claw_hw_tx(pk_skb, dev, 1);
                        if (privptr->write_free_count > 0) {
                                pk_skb = claw_pack_skb(privptr);
                        } else
@@ -1322,15 +1319,12 @@ claw_hw_tx(struct sk_buff *skb, struct net_device *dev, long linkid)
         unsigned char                   *pDataAddress;
         struct endccw                   *pEnd;
         struct ccw1                     tempCCW;
-        struct chbk                     *p_ch;
        struct claw_env                 *p_env;
-        int                             lock;
        struct clawph                   *pk_head;
        struct chbk                     *ch;
 
        CLAW_DBF_TEXT(4, trace, "hw_tx");
        privptr = (struct claw_privbk *)(dev->ml_priv);
-       p_ch = (struct chbk *)&privptr->channel[WRITE_CHANNEL];
        p_env =privptr->p_env;
        claw_free_wrt_buf(dev); /* Clean up free chain if posible */
         /*  scan the write queue to free any completed write packets   */
@@ -1511,12 +1505,6 @@ claw_hw_tx(struct sk_buff *skb, struct net_device *dev, long linkid)
 
         } /* endif (p_first_ccw!=NULL)  */
         dev_kfree_skb_any(skb);
-       if (linkid==0) {
-               lock=LOCK_NO;
-        }
-        else  {
-                lock=LOCK_YES;
-        }
         claw_strt_out_IO(dev );
         /*      if write free count is zero , set NOBUFFER       */
        if (privptr->write_free_count==0) {
@@ -2821,15 +2809,11 @@ claw_free_wrt_buf( struct net_device *dev )
 {
 
        struct claw_privbk *privptr = (struct claw_privbk *)dev->ml_priv;
-        struct ccwbk*p_first_ccw;
-       struct ccwbk*p_last_ccw;
        struct ccwbk*p_this_ccw;
        struct ccwbk*p_next_ccw;
 
        CLAW_DBF_TEXT(4, trace, "freewrtb");
         /*  scan the write queue to free any completed write packets   */
-        p_first_ccw=NULL;
-        p_last_ccw=NULL;
         p_this_ccw=privptr->p_write_active_first;
         while ( (p_this_ccw!=NULL) && (p_this_ccw->header.flag!=CLAW_PENDING))
         {
@@ -3072,7 +3056,7 @@ claw_shutdown_device(struct ccwgroup_device *cgdev)
 {
        struct claw_privbk *priv;
        struct net_device *ndev;
-       int     ret;
+       int ret = 0;
 
        CLAW_DBF_TEXT_(2, setup, "%s", dev_name(&cgdev->dev));
        priv = dev_get_drvdata(&cgdev->dev);
@@ -3095,7 +3079,7 @@ claw_shutdown_device(struct ccwgroup_device *cgdev)
        }
        ccw_device_set_offline(cgdev->cdev[1]);
        ccw_device_set_offline(cgdev->cdev[0]);
-       return 0;
+       return ret;
 }
 
 static void