PCI hotplug: Fix build with CONFIG_ACPI unset

One of the recent changes caused complilation of
drivers/pci/hotplug/pciehp_core.c to fail.  Fix this issue.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/pci/hotplug/pciehp.h b/drivers/pci/hotplug/pciehp.h
index 653de6ff8ac6..73d513989263 100644
--- a/drivers/pci/hotplug/pciehp.h
+++ b/drivers/pci/hotplug/pciehp.h
@@ -178,5 +178,9 @@ static inline void pciehp_firmware_init(void)
 }
 #else
 #define pciehp_firmware_init()                          do {} while (0)
+static inline int pciehp_acpi_slot_detection_check(struct pci_dev *dev)
+{
+        return 0;
+}
 #endif                          /* CONFIG_ACPI */
 #endif                          /* _PCIEHP_H */