cxl/pci: Drop the parameter is_port of cxl_gpf_get_dvsec()

The first parameter of cxl_gpf_get_dvsec() is a struct device, can be
used to distinguish if the device is a cxl dport or a cxl pci device by
checking the PCIe type of it, so the parameter is_port is unnecessary
to cxl_gpf_get_dvsec(), using parameter struct device is enough.

Signed-off-by: Li Ming <[e-mail]>
Reviewed-by: Davidlohr Bueso <[e-mail]>
Reviewed-by: Jonathan Cameron <[e-mail]>
Reviewed-by: Dan Williams <[e-mail]>
Tested-by: Davidlohr Bueso <[e-mail]>
Link: https://patch.msgid.link/[e-mail]
Signed-off-by: Dave Jiang <[e-mail]>

drivers/cxl/core/pci.c

···
 #define GPF_TIMEOUT_BASE_MAX 2
 #define GPF_TIMEOUT_SCALE_MAX 7 /* 10 seconds */
 
-u16 cxl_gpf_get_dvsec(struct device *dev, bool is_port)
+u16 cxl_gpf_get_dvsec(struct device *dev)
 {
+	struct pci_dev *pdev;
+	bool is_port = true;
 	u16 dvsec;
 
 	if (!dev_is_pci(dev))
 		return 0;
 
-	dvsec = pci_find_dvsec_capability(to_pci_dev(dev), PCI_VENDOR_ID_CXL,
+	pdev = to_pci_dev(dev);
+	if (pci_pcie_type(pdev) == PCI_EXP_TYPE_ENDPOINT)
+		is_port = false;
+
+	dvsec = pci_find_dvsec_capability(pdev, PCI_VENDOR_ID_CXL,
 			is_port ? CXL_DVSEC_PORT_GPF : CXL_DVSEC_DEVICE_GPF);
 	if (!dvsec)
 		dev_warn(dev, "%s GPF DVSEC not present\n",
···
 		struct pci_dev *pdev;
 		int dvsec;
 
-		dvsec = cxl_gpf_get_dvsec(dport->dport_dev, true);
+		dvsec = cxl_gpf_get_dvsec(dport->dport_dev);
 		if (!dvsec)
 			return -EINVAL;
 

drivers/cxl/cxl.h

···
 #define __mock static
 #endif
 
-u16 cxl_gpf_get_dvsec(struct device *dev, bool is_port);
+u16 cxl_gpf_get_dvsec(struct device *dev);
 
 #endif /* __CXL_H__ */

drivers/cxl/pmem.c

···
 		return;
 	}
 
-	if (!cxl_gpf_get_dvsec(cxlds->dev, false))
+	if (!cxl_gpf_get_dvsec(cxlds->dev))
 		return;
 
 	if (cxl_get_dirty_count(mds, &count)) {