PCI/PM: Use pci_WARN() to include device information

Add and use pci_WARN() wrappers so warnings include device information.

Link: https://lore.kernel.org/r/20191017212851.54237-3-helgaas@kernel.orgSigned-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

drivers/pci/pci-driver.c

@@ -585,7 +585,7 @@ static int pci_legacy_suspend(struct device *dev, pm_message_t state)
 
 		if (!pci_dev->state_saved && pci_dev->current_state != PCI_D0
 		    && pci_dev->current_state != PCI_UNKNOWN) {
-			WARN_ONCE(pci_dev->current_state != prev,
+			pci_WARN_ONCE(pci_dev, pci_dev->current_state != prev,
 				      "PCI PM: Device state not saved by %pS\n",
 				      drv->suspend);
 		}
@@ -612,7 +612,7 @@ static int pci_legacy_suspend_late(struct device *dev, pm_message_t state)
 
 		if (!pci_dev->state_saved && pci_dev->current_state != PCI_D0
 		    && pci_dev->current_state != PCI_UNKNOWN) {
-			WARN_ONCE(pci_dev->current_state != prev,
+			pci_WARN_ONCE(pci_dev, pci_dev->current_state != prev,
 				      "PCI PM: Device state not saved by %pS\n",
 				      drv->suspend_late);
 			goto Fixup;
@@ -670,8 +670,8 @@ static bool pci_has_legacy_pm_support(struct pci_dev *pci_dev)
 	 * supported as well.  Drivers are supposed to support either the
 	 * former, or the latter, but not both at the same time.
 	 */
-	WARN(ret && drv->driver.pm, "driver %s device %04x:%04x\n",
-		drv->name, pci_dev->vendor, pci_dev->device);
+	pci_WARN(pci_dev, ret && drv->driver.pm, "device %04x:%04x\n",
+		 pci_dev->vendor, pci_dev->device);
 
 	return ret;
 }
@@ -794,7 +794,7 @@ static int pci_pm_suspend(struct device *dev)
 
 		if (!pci_dev->state_saved && pci_dev->current_state != PCI_D0
 		    && pci_dev->current_state != PCI_UNKNOWN) {
-			WARN_ONCE(pci_dev->current_state != prev,
+			pci_WARN_ONCE(pci_dev, pci_dev->current_state != prev,
 				      "PCI PM: State of device not saved by %pS\n",
 				      pm->suspend);
 		}
@@ -842,7 +842,7 @@ static int pci_pm_suspend_noirq(struct device *dev)
 
 		if (!pci_dev->state_saved && pci_dev->current_state != PCI_D0
 		    && pci_dev->current_state != PCI_UNKNOWN) {
-			WARN_ONCE(pci_dev->current_state != prev,
+			pci_WARN_ONCE(pci_dev, pci_dev->current_state != prev,
 				      "PCI PM: State of device not saved by %pS\n",
 				      pm->suspend_noirq);
 			goto Fixup;
@@ -1311,7 +1311,7 @@ static int pci_pm_runtime_suspend(struct device *dev)
 	if (pm && pm->runtime_suspend
 	    && !pci_dev->state_saved && pci_dev->current_state != PCI_D0
 	    && pci_dev->current_state != PCI_UNKNOWN) {
-		WARN_ONCE(pci_dev->current_state != prev,
+		pci_WARN_ONCE(pci_dev, pci_dev->current_state != prev,
 			      "PCI PM: State of device not saved by %pS\n",
 			      pm->runtime_suspend);
 		return 0;

include/linux/pci.h

@@ -2400,4 +2400,12 @@ void pci_uevent_ers(struct pci_dev *pdev, enum  pci_ers_result err_type);
 #define pci_info_ratelimited(pdev, fmt, arg...) \
 	dev_info_ratelimited(&(pdev)->dev, fmt, ##arg)
 
+#define pci_WARN(pdev, condition, fmt, arg...) \
+	WARN(condition, "%s %s: " fmt, \
+	     dev_driver_string(&(pdev)->dev), pci_name(pdev), ##arg)
+
+#define pci_WARN_ONCE(pdev, condition, fmt, arg...) \
+	WARN_ONCE(condition, "%s %s: " fmt, \
+		  dev_driver_string(&(pdev)->dev), pci_name(pdev), ##arg)
+
 #endif /* LINUX_PCI_H */