[RFC PATCH] PCI: VMD: ACPI: pci_acpi_companion_lookup_key can be static

[kernel test robot]

drivers/pci/pci-acpi.c:1164:1: warning: symbol 'pci_acpi_companion_lookup_key' was not declared. Should it be static?

Reported-by: kernel test robot <lkp@xxxxxxxxx>
Signed-off-by: kernel test robot <lkp@xxxxxxxxx>
---
 pci-acpi.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c
index 535f43034a073..c8718aeafae5d 100644
--- a/drivers/pci/pci-acpi.c
+++ b/drivers/pci/pci-acpi.c
@@ -1161,7 +1161,7 @@ void acpi_pci_remove_bus(struct pci_bus *bus)
 /* ACPI bus type */
 
 
-DEFINE_STATIC_KEY_FALSE(pci_acpi_companion_lookup_key);
+static DEFINE_STATIC_KEY_FALSE(pci_acpi_companion_lookup_key);
 static DEFINE_MUTEX(pci_acpi_companion_lookup_mtx);
 static struct acpi_device *(*pci_acpi_find_companion_hook)(struct pci_dev *);