cciss: factor out cciss_setnodename

Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>

diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index 9a3dd20ea93a8c8451808f4e8ae110a166ae8113..8bbb1c81bf86c9bf3429f22436281bfed900fe6d 100644 (file)
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -1305,6 +1305,34 @@ static int cciss_getnodename(ctlr_info_t *h, void __user *argp)
        return 0;
 }
 
+static int cciss_setnodename(ctlr_info_t *h, void __user *argp)
+{
+       NodeName_type NodeName;
+       unsigned long flags;
+       int i;
+
+       if (!argp)
+               return -EINVAL;
+       if (!capable(CAP_SYS_ADMIN))
+               return -EPERM;
+       if (copy_from_user(NodeName, argp, sizeof(NodeName_type)))
+               return -EFAULT;
+       spin_lock_irqsave(&h->lock, flags);
+       /* Update the field, and then ring the doorbell */
+       for (i = 0; i < 16; i++)
+               writeb(NodeName[i], &h->cfgtable->ServerName[i]);
+       writel(CFGTBL_ChangeReq, h->vaddr + SA5_DOORBELL);
+       for (i = 0; i < MAX_IOCTL_CONFIG_WAIT; i++) {
+               if (!(readl(h->vaddr + SA5_DOORBELL) & CFGTBL_ChangeReq))
+                       break;
+               udelay(1000); /* delay and try again */
+       }
+       spin_unlock_irqrestore(&h->lock, flags);
+       if (i >= MAX_IOCTL_CONFIG_WAIT)
+               return -EAGAIN;
+       return 0;
+}
+
 static int cciss_ioctl(struct block_device *bdev, fmode_t mode,
                       unsigned int cmd, unsigned long arg)
 {
@@ -1325,42 +1353,7 @@ static int cciss_ioctl(struct block_device *bdev, fmode_t mode,
        case CCISS_GETNODENAME:
                return cciss_getnodename(h, argp);
        case CCISS_SETNODENAME:
-               {
-                       NodeName_type NodeName;
-                       unsigned long flags;
-                       int i;
-
-                       if (!arg)
-                               return -EINVAL;
-                       if (!capable(CAP_SYS_ADMIN))
-                               return -EPERM;
-
-                       if (copy_from_user
-                           (NodeName, argp, sizeof(NodeName_type)))
-                               return -EFAULT;
-
-                       spin_lock_irqsave(&h->lock, flags);
-
-                       /* Update the field, and then ring the doorbell */
-                       for (i = 0; i < 16; i++)
-                               writeb(NodeName[i],
-                                      &h->cfgtable->ServerName[i]);
-
-                       writel(CFGTBL_ChangeReq, h->vaddr + SA5_DOORBELL);
-
-                       for (i = 0; i < MAX_IOCTL_CONFIG_WAIT; i++) {
-                               if (!(readl(h->vaddr + SA5_DOORBELL)
-                                     & CFGTBL_ChangeReq))
-                                       break;
-                               /* delay and try again */
-                               udelay(1000);
-                       }
-                       spin_unlock_irqrestore(&h->lock, flags);
-                       if (i >= MAX_IOCTL_CONFIG_WAIT)
-                               return -EAGAIN;
-                       return 0;
-               }
-
+               return cciss_setnodename(h, argp);
        case CCISS_GETHEARTBEAT:
                {
                        Heartbeat_type heartbeat;