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isci: kill SCI_IO_REQUEST_DATA_DIRECTION

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It's an unnecessary typedef that mirrors the kernel's enum
dma_data_direction.

Also cleanup some long variable names along the way.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Dan Williams
2011-02-08 17:53:10 -08:00
parent a7e536c7d6
commit 82d29928c1
8 changed files with 73 additions and 143 deletions
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36
drivers/scsi/isci/request.c
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@@ -1237,44 +1237,12 @@ u32 isci_request_io_request_get_transfer_length(struct isci_request *request)
*
* data direction for specified request.
*/
SCI_IO_REQUEST_DATA_DIRECTION isci_request_io_request_get_data_direction(
enum dma_data_direction isci_request_io_request_get_data_direction(
struct isci_request *request)
{
struct sas_task *task = isci_request_access_task(request);
SCI_IO_REQUEST_DATA_DIRECTION ret;
switch (task->data_dir) {
case DMA_FROM_DEVICE:
ret = SCI_IO_REQUEST_DATA_IN;
dev_dbg(&request->isci_host->pdev->dev,
"%s: request=%p, FROM_DEVICE\n",
__func__,
request);
break;
case DMA_TO_DEVICE:
ret = SCI_IO_REQUEST_DATA_OUT;
dev_dbg(&request->isci_host->pdev->dev,
"%s: request=%p, TO_DEVICE\n",
__func__,
request);
break;
case DMA_BIDIRECTIONAL:
case DMA_NONE:
default:
ret = SCI_IO_REQUEST_NO_DATA;
dev_dbg(&request->isci_host->pdev->dev,
"%s: request=%p, unhandled direction case, "
"data_dir=%d\n",
__func__,
request,
task->data_dir);
break;
}
return ret;
return task->data_dir;
}
/**