staging/bcm: move IOCTL_BCM_GPIO_MODE_REQUEST case out to its own function.

bcm_char_ioctl is one of the longest non-generated functions in the kernel,
at 1906 lines.  Splitting it up into multiple functions should simplify
this a lot.

Signed-off-by: Dave Jones <davej@fedoraproject.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/bcm/Bcmchar.c b/drivers/staging/bcm/Bcmchar.c
index e693158..eaf8eb5 100644 (file)
--- a/drivers/staging/bcm/Bcmchar.c
+++ b/drivers/staging/bcm/Bcmchar.c
@@ -661,6 +661,83 @@ static int bcm_char_ioctl_gpio_multi_request(void __user *argp, struct bcm_mini_
        return Status;
 }
 
+static int bcm_char_ioctl_gpio_mode_request(void __user *argp, struct bcm_mini_adapter *Adapter)
+{
+       struct bcm_gpio_multi_mode gpio_multi_mode[MAX_IDX];
+       struct bcm_gpio_multi_mode *pgpio_multi_mode = (struct bcm_gpio_multi_mode *)gpio_multi_mode;
+       struct bcm_ioctl_buffer IoBuffer;
+       UCHAR ucResetValue[4];
+       INT Status;
+       int bytes;
+
+       if ((Adapter->IdleMode == TRUE) ||
+               (Adapter->bShutStatus == TRUE) ||
+               (Adapter->bPreparingForLowPowerMode == TRUE))
+               return -EINVAL;
+
+       if (copy_from_user(&IoBuffer, argp, sizeof(struct bcm_ioctl_buffer)))
+               return -EFAULT;
+
+       if (IoBuffer.InputLength > sizeof(gpio_multi_mode))
+               return -EINVAL;
+
+       if (copy_from_user(&gpio_multi_mode, IoBuffer.InputBuffer, IoBuffer.InputLength))
+               return -EFAULT;
+
+       bytes = rdmaltWithLock(Adapter, (UINT)GPIO_MODE_REGISTER, (PUINT)ucResetValue, sizeof(UINT));
+
+       if (bytes < 0) {
+               Status = bytes;
+               BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "Read of GPIO_MODE_REGISTER failed");
+               return Status;
+       } else {
+               Status = STATUS_SUCCESS;
+       }
+
+       /* Validating the request */
+       if (IsReqGpioIsLedInNVM(Adapter, pgpio_multi_mode[WIMAX_IDX].uiGPIOMask) == false) {
+               BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, OSAL_DBG, DBG_LVL_ALL,
+                               "Sorry, Requested GPIO<0x%X> is not correspond to NVM LED bit map<0x%X>!!!",
+                               pgpio_multi_mode[WIMAX_IDX].uiGPIOMask, Adapter->gpioBitMap);
+               return -EINVAL;
+       }
+
+       if (pgpio_multi_mode[WIMAX_IDX].uiGPIOMask) {
+               /* write all OUT's (1's) */
+               *(UINT *) ucResetValue |= (pgpio_multi_mode[WIMAX_IDX].uiGPIOMode &
+                                       pgpio_multi_mode[WIMAX_IDX].uiGPIOMask);
+
+               /* write all IN's (0's) */
+               *(UINT *) ucResetValue &= ~((~pgpio_multi_mode[WIMAX_IDX].uiGPIOMode) &
+                                       pgpio_multi_mode[WIMAX_IDX].uiGPIOMask);
+
+               /* Currently implemented return the modes of all GPIO's
+                * else needs to bit AND with  mask
+                */
+               pgpio_multi_mode[WIMAX_IDX].uiGPIOMode = *(UINT *)ucResetValue;
+
+               Status = wrmaltWithLock(Adapter, GPIO_MODE_REGISTER, (PUINT)ucResetValue, sizeof(ULONG));
+               if (Status == STATUS_SUCCESS) {
+                       BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, OSAL_DBG, DBG_LVL_ALL,
+                                       "WRM to GPIO_MODE_REGISTER Done");
+               } else {
+                       BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0,
+                                       "WRM to GPIO_MODE_REGISTER Failed");
+                       return -EFAULT;
+               }
+       } else {
+               /* if uiGPIOMask is 0 then return mode register configuration */
+               pgpio_multi_mode[WIMAX_IDX].uiGPIOMode = *(UINT *)ucResetValue;
+       }
+
+       Status = copy_to_user(IoBuffer.OutputBuffer, &gpio_multi_mode, IoBuffer.OutputLength);
+       if (Status) {
+               BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0,
+                               "Failed while copying Content to IOBufer for user space err:%d", Status);
+               return -EFAULT;
+       }
+       return Status;
+}
 
 static long bcm_char_ioctl(struct file *filp, UINT cmd, ULONG arg)
 {
@@ -670,7 +747,6 @@ static long bcm_char_ioctl(struct file *filp, UINT cmd, ULONG arg)
        INT Status = STATUS_FAILURE;
        int timeout = 0;
        struct bcm_ioctl_buffer IoBuffer;
-       int bytes;
 
        BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, OSAL_DBG, DBG_LVL_ALL,
                        "Parameters Passed to control IOCTL cmd=0x%X arg=0x%lX",
@@ -747,81 +823,9 @@ static long bcm_char_ioctl(struct file *filp, UINT cmd, ULONG arg)
                Status = bcm_char_ioctl_gpio_multi_request(argp, Adapter);
                return Status;
 
-       case IOCTL_BCM_GPIO_MODE_REQUEST: {
-               UCHAR ucResetValue[4];
-               struct bcm_gpio_multi_mode gpio_multi_mode[MAX_IDX];
-               struct bcm_gpio_multi_mode *pgpio_multi_mode = (struct bcm_gpio_multi_mode *)gpio_multi_mode;
-
-               if ((Adapter->IdleMode == TRUE) ||
-                       (Adapter->bShutStatus == TRUE) ||
-                       (Adapter->bPreparingForLowPowerMode == TRUE))
-                       return -EINVAL;
-
-               if (copy_from_user(&IoBuffer, argp, sizeof(struct bcm_ioctl_buffer)))
-                       return -EFAULT;
-
-               if (IoBuffer.InputLength > sizeof(gpio_multi_mode))
-                       return -EINVAL;
-
-               if (copy_from_user(&gpio_multi_mode, IoBuffer.InputBuffer, IoBuffer.InputLength))
-                       return -EFAULT;
-
-               bytes = rdmaltWithLock(Adapter, (UINT)GPIO_MODE_REGISTER, (PUINT)ucResetValue, sizeof(UINT));
-
-               if (bytes < 0) {
-                       Status = bytes;
-                       BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "Read of GPIO_MODE_REGISTER failed");
-                       return Status;
-               } else {
-                       Status = STATUS_SUCCESS;
-               }
-
-               /* Validating the request */
-               if (IsReqGpioIsLedInNVM(Adapter, pgpio_multi_mode[WIMAX_IDX].uiGPIOMask) == false) {
-                       BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, OSAL_DBG, DBG_LVL_ALL,
-                                       "Sorry, Requested GPIO<0x%X> is not correspond to NVM LED bit map<0x%X>!!!",
-                                       pgpio_multi_mode[WIMAX_IDX].uiGPIOMask, Adapter->gpioBitMap);
-                       Status = -EINVAL;
-                       break;
-               }
-
-               if (pgpio_multi_mode[WIMAX_IDX].uiGPIOMask) {
-                       /* write all OUT's (1's) */
-                       *(UINT *) ucResetValue |= (pgpio_multi_mode[WIMAX_IDX].uiGPIOMode &
-                                               pgpio_multi_mode[WIMAX_IDX].uiGPIOMask);
-
-                       /* write all IN's (0's) */
-                       *(UINT *) ucResetValue &= ~((~pgpio_multi_mode[WIMAX_IDX].uiGPIOMode) &
-                                               pgpio_multi_mode[WIMAX_IDX].uiGPIOMask);
-
-                       /* Currently implemented return the modes of all GPIO's
-                        * else needs to bit AND with  mask
-                        */
-                       pgpio_multi_mode[WIMAX_IDX].uiGPIOMode = *(UINT *)ucResetValue;
-
-                       Status = wrmaltWithLock(Adapter, GPIO_MODE_REGISTER, (PUINT)ucResetValue, sizeof(ULONG));
-                       if (Status == STATUS_SUCCESS) {
-                               BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, OSAL_DBG, DBG_LVL_ALL,
-                                               "WRM to GPIO_MODE_REGISTER Done");
-                       } else {
-                               BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0,
-                                               "WRM to GPIO_MODE_REGISTER Failed");
-                               Status = -EFAULT;
-                               break;
-                       }
-               } else {
-/* if uiGPIOMask is 0 then return mode register configuration */
-                       pgpio_multi_mode[WIMAX_IDX].uiGPIOMode = *(UINT *)ucResetValue;
-               }
-
-               Status = copy_to_user(IoBuffer.OutputBuffer, &gpio_multi_mode, IoBuffer.OutputLength);
-               if (Status) {
-                       BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0,
-                                       "Failed while copying Content to IOBufer for user space err:%d", Status);
-                       return -EFAULT;
-               }
-       }
-       break;
+       case IOCTL_BCM_GPIO_MODE_REQUEST:
+               Status = bcm_char_ioctl_gpio_mode_request(argp, Adapter);
+               return Status;
 
        case IOCTL_MAC_ADDR_REQ:
        case IOCTL_LINK_REQ: