cxl/pci: Rename DOE mailbox handle to doe_mb

Trivial variable rename for the DOE mailbox handle from cdat_doe to
doe_mb. The variable name cdat_doe is too ambiguous, use doe_mb that
is commonly used for the mailbox.

Signed-off-by: Robert Richter <rrichter@amd.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20240216155844.406996-2-rrichter@amd.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

Author: Robert Richter

drivers/cxl/core/pci.c

@@ -518,14 +518,14 @@ EXPORT_SYMBOL_NS_GPL(cxl_hdm_decode_init, CXL);
 	 FIELD_PREP(CXL_DOE_TABLE_ACCESS_ENTRY_HANDLE, (entry_handle)))
 
 static int cxl_cdat_get_length(struct device *dev,
-			       struct pci_doe_mb *cdat_doe,
+			       struct pci_doe_mb *doe_mb,
 			       size_t *length)
 {
 	__le32 request = CDAT_DOE_REQ(0);
 	__le32 response[2];
 	int rc;
 
-	rc = pci_doe(cdat_doe, PCI_DVSEC_VENDOR_ID_CXL,
+	rc = pci_doe(doe_mb, PCI_DVSEC_VENDOR_ID_CXL,
 		     CXL_DOE_PROTOCOL_TABLE_ACCESS,
 		     &request, sizeof(request),
 		     &response, sizeof(response));
@@ -543,7 +543,7 @@ static int cxl_cdat_get_length(struct device *dev,
 }
 
 static int cxl_cdat_read_table(struct device *dev,
-			       struct pci_doe_mb *cdat_doe,
+			       struct pci_doe_mb *doe_mb,
 			       void *cdat_table, size_t *cdat_length)
 {
 	size_t length = *cdat_length + sizeof(__le32);
@@ -557,7 +557,7 @@ static int cxl_cdat_read_table(struct device *dev,
 		size_t entry_dw;
 		int rc;
 
-		rc = pci_doe(cdat_doe, PCI_DVSEC_VENDOR_ID_CXL,
+		rc = pci_doe(doe_mb, PCI_DVSEC_VENDOR_ID_CXL,
 			     CXL_DOE_PROTOCOL_TABLE_ACCESS,
 			     &request, sizeof(request),
 			     data, length);
@@ -617,7 +617,7 @@ void read_cdat_data(struct cxl_port *port)
 {
 	struct device *uport = port->uport_dev;
 	struct device *dev = &port->dev;
-	struct pci_doe_mb *cdat_doe;
+	struct pci_doe_mb *doe_mb;
 	struct pci_dev *pdev = NULL;
 	struct cxl_memdev *cxlmd;
 	size_t cdat_length;
@@ -638,16 +638,16 @@ void read_cdat_data(struct cxl_port *port)
 	if (!pdev)
 		return;
 
-	cdat_doe = pci_find_doe_mailbox(pdev, PCI_DVSEC_VENDOR_ID_CXL,
-					CXL_DOE_PROTOCOL_TABLE_ACCESS);
-	if (!cdat_doe) {
+	doe_mb = pci_find_doe_mailbox(pdev, PCI_DVSEC_VENDOR_ID_CXL,
+				      CXL_DOE_PROTOCOL_TABLE_ACCESS);
+	if (!doe_mb) {
 		dev_dbg(dev, "No CDAT mailbox\n");
 		return;
 	}
 
 	port->cdat_available = true;
 
-	if (cxl_cdat_get_length(dev, cdat_doe, &cdat_length)) {
+	if (cxl_cdat_get_length(dev, doe_mb, &cdat_length)) {
 		dev_dbg(dev, "No CDAT length\n");
 		return;
 	}
@@ -656,7 +656,7 @@ void read_cdat_data(struct cxl_port *port)
 	if (!cdat_buf)
 		return;
 
-	rc = cxl_cdat_read_table(dev, cdat_doe, cdat_buf, &cdat_length);
+	rc = cxl_cdat_read_table(dev, doe_mb, cdat_buf, &cdat_length);
 	if (rc)
 		goto err;