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Subject[PATCH 5.2 098/137] PCI: pci-hyperv: Fix build errors on non-SYSFS config
From: Randy Dunlap <>

[ Upstream commit f58ba5e3f6863ea4486952698898848a6db726c2 ]

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.

Also, depending on X86 && X86_64 is not needed, so just change that
to depend on X86_64.

Fixes: a15f2c08c708 ("PCI: hv: support reporting serial number as slot information")
Signed-off-by: Randy Dunlap <>
Signed-off-by: Lorenzo Pieralisi <>
Reviewed-by: Haiyang Zhang <>
Cc: Matthew Wilcox <>
Cc: Jake Oshins <>
Cc: "K. Y. Srinivasan" <>
Cc: Haiyang Zhang <>
Cc: Stephen Hemminger <>
Cc: Stephen Hemminger <>
Cc: Sasha Levin <>
Cc: Bjorn Helgaas <>
Cc: Dexuan Cui <>
Signed-off-by: Sasha Levin <>
drivers/pci/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig
index 2ab92409210af..297bf928d6522 100644
--- a/drivers/pci/Kconfig
+++ b/drivers/pci/Kconfig
@@ -181,7 +181,7 @@ config PCI_LABEL

tristate "Hyper-V PCI Frontend"
- depends on X86 && HYPERV && PCI_MSI && PCI_MSI_IRQ_DOMAIN && X86_64
+ depends on X86_64 && HYPERV && PCI_MSI && PCI_MSI_IRQ_DOMAIN && SYSFS
The PCI device frontend driver allows the kernel to import arbitrary
PCI devices from a PCI backend to support PCI driver domains.

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