On Tue, Jul 02, 2019 at 04:24:30PM -0700, Randy Dunlap wrote:

From: Randy Dunlap <redacted>

Fix build errors when building almost-allmodconfig but with SYSFS
not set (not enabled).  Fixes these build errors:

ERROR: "pci_destroy_slot" [drivers/pci/controller/pci-hyperv.ko] undefined!
ERROR: "pci_create_slot" [drivers/pci/controller/pci-hyperv.ko] undefined!

drivers/pci/slot.o is only built when SYSFS is enabled, so
pci-hyperv.o has an implicit dependency on SYSFS.
Make that explicit.

I wonder if we shouldn't rather provide no-op versions of
pci_create|destroy_slot for when SYSFS is not set?