1 files changed, 8 insertions, 0 deletions

diff --git a/include/linux/pci.h b/include/linux/pci.h
index 72698d89e767..8e366bb0705f 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -124,6 +124,14 @@ typedef int __bitwise pci_power_t;
 #define PCI_UNKNOWN     ((pci_power_t __force) 5)
 #define PCI_POWER_ERROR ((pci_power_t __force) -1)
 
+/* Remember to update this when the list above changes! */
+extern const char *pci_power_names[];
+
+static inline const char *pci_power_name(pci_power_t state)
+{
+        return pci_power_names[1 + (int) state];
+}
+
 #define PCI_PM_D2_DELAY 200
 #define PCI_PM_D3_WAIT  10
 #define PCI_PM_BUS_WAIT 50