[PATCH 37/38] staging/bcm: move IOCTL_BCM_GET_DEVICE_DRIVER_INFO case out to its own function.

From: Dave Jones
Date: Thu Feb 13 2014 - 14:48:57 EST


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@xxxxxxxxxxxxxxxxx>
---
drivers/staging/bcm/Bcmchar.c | 51 ++++++++++++++++++++++++-------------------
1 file changed, 29 insertions(+), 22 deletions(-)

diff --git a/drivers/staging/bcm/Bcmchar.c b/drivers/staging/bcm/Bcmchar.c
index 2cfdbeeff14a..74360ee45c2b 100644
--- a/drivers/staging/bcm/Bcmchar.c
+++ b/drivers/staging/bcm/Bcmchar.c
@@ -2003,6 +2003,32 @@ static int bcm_char_ioctl_cntrlmsg_mask(void __user *argp, struct bcm_mini_adapt
return Status;
}

+static int bcm_char_ioctl_get_device_driver_info(void __user *argp, struct bcm_mini_adapter *Adapter)
+{
+ struct bcm_driver_info DevInfo;
+ struct bcm_ioctl_buffer IoBuffer;
+
+ BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, OSAL_DBG, DBG_LVL_ALL, "Called IOCTL_BCM_GET_DEVICE_DRIVER_INFO\n");
+
+ memset(&DevInfo, 0, sizeof(DevInfo));
+ DevInfo.MaxRDMBufferSize = BUFFER_4K;
+ DevInfo.u32DSDStartOffset = EEPROM_CALPARAM_START;
+ DevInfo.u32RxAlignmentCorrection = 0;
+ DevInfo.u32NVMType = Adapter->eNVMType;
+ DevInfo.u32InterfaceType = BCM_USB;
+
+ if (copy_from_user(&IoBuffer, argp, sizeof(struct bcm_ioctl_buffer)))
+ return -EFAULT;
+
+ if (IoBuffer.OutputLength < sizeof(DevInfo))
+ return -EINVAL;
+
+ if (copy_to_user(IoBuffer.OutputBuffer, &DevInfo, sizeof(DevInfo)))
+ return -EFAULT;
+
+ return STATUS_SUCCESS;
+}
+

static long bcm_char_ioctl(struct file *filp, UINT cmd, ULONG arg)
{
@@ -2243,28 +2269,9 @@ static long bcm_char_ioctl(struct file *filp, UINT cmd, ULONG arg)
Status = bcm_char_ioctl_cntrlmsg_mask(argp, Adapter, pTarang);
return Status;

- case IOCTL_BCM_GET_DEVICE_DRIVER_INFO: {
- struct bcm_driver_info DevInfo;
-
- BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, OSAL_DBG, DBG_LVL_ALL, "Called IOCTL_BCM_GET_DEVICE_DRIVER_INFO\n");
-
- memset(&DevInfo, 0, sizeof(DevInfo));
- DevInfo.MaxRDMBufferSize = BUFFER_4K;
- DevInfo.u32DSDStartOffset = EEPROM_CALPARAM_START;
- DevInfo.u32RxAlignmentCorrection = 0;
- DevInfo.u32NVMType = Adapter->eNVMType;
- DevInfo.u32InterfaceType = BCM_USB;
-
- if (copy_from_user(&IoBuffer, argp, sizeof(struct bcm_ioctl_buffer)))
- return -EFAULT;
-
- if (IoBuffer.OutputLength < sizeof(DevInfo))
- return -EINVAL;
-
- if (copy_to_user(IoBuffer.OutputBuffer, &DevInfo, sizeof(DevInfo)))
- return -EFAULT;
- }
- break;
+ case IOCTL_BCM_GET_DEVICE_DRIVER_INFO:
+ Status = bcm_char_ioctl_get_device_driver_info(argp, Adapter);
+ return Status;

case IOCTL_BCM_TIME_SINCE_NET_ENTRY: {
struct bcm_time_elapsed stTimeElapsedSinceNetEntry = {0};
--
1.8.5.3

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