scsi: cxlflash: Abstract hardware dependent assignments

As a staging cleanup to support transport specific builds of the cxlflash
module, relocate device dependent assignments to header files. This will
avoid littering the core driver with conditional compilation logic.
Signed-off-by: NUma Krishnan <ukrishn@linux.vnet.ibm.com>
Acked-by: NMatthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/cxlflash/main.c

@@ -3708,11 +3708,8 @@ static int cxlflash_probe(struct pci_dev *pdev,
 	cfg->init_state = INIT_STATE_NONE;
 	cfg->dev = pdev;
 	cfg->cxl_fops = cxlflash_cxl_fops;
-
-	if (ddv->flags & CXLFLASH_OCXL_DEV)
-		cfg->ops = &cxlflash_ocxl_ops;
-	else
-		cfg->ops = &cxlflash_cxl_ops;
+	cfg->ops = cxlflash_assign_ops(ddv);
+	WARN_ON_ONCE(!cfg->ops);
 
 	/*
 	 * Promoted LUNs move to the top of the LUN table. The rest stay on

drivers/scsi/cxlflash/main.h

@@ -20,6 +20,8 @@
 #include <scsi/scsi.h>
 #include <scsi/scsi_device.h>
 
+#include "backend.h"
+
 #define CXLFLASH_NAME		"cxlflash"
 #define CXLFLASH_ADAPTER_NAME	"IBM POWER CXL Flash Adapter"
 #define CXLFLASH_MAX_ADAPTERS	32
@@ -100,6 +102,19 @@ struct dev_dependent_vals {
 #define CXLFLASH_OCXL_DEV		0x0000000000000004ULL
 };
 
+static inline const struct cxlflash_backend_ops *
+cxlflash_assign_ops(struct dev_dependent_vals *ddv)
+{
+	const struct cxlflash_backend_ops *ops = NULL;
+
+	if (ddv->flags & CXLFLASH_OCXL_DEV)
+		ops = &cxlflash_ocxl_ops;
+	if (!(ddv->flags & CXLFLASH_OCXL_DEV))
+		ops = &cxlflash_cxl_ops;
+
+	return ops;
+}
+
 struct asyc_intr_info {
 	u64 status;
 	char *desc;