isci: kill SCI_IO_REQUEST_DATA_DIRECTION
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>
diff --git a/drivers/scsi/isci/request.h b/drivers/scsi/isci/request.h
index 5079d4a..166295e 100644
--- a/drivers/scsi/isci/request.h
+++ b/drivers/scsi/isci/request.h
@@ -346,8 +346,7 @@
u32 isci_request_io_request_get_transfer_length(
struct isci_request *request);
-SCI_IO_REQUEST_DATA_DIRECTION isci_request_io_request_get_data_direction(
- struct isci_request *request);
+enum dma_data_direction isci_request_io_request_get_data_direction(struct isci_request *req);
/**
* isci_request_io_request_get_next_sge() - This function is called by the sci