> -----Original Message-----
> From: Randy Dunlap <rdun...@infradead.org>
> Sent: Friday, July 12, 2019 11:53 AM
> To: linux-pci <linux-...@vger.kernel.org>; LKML <linux-
> ker...@vger.kernel.org>
> Cc: Matthew Wilcox <wi...@infradead.org>; Jake Oshins
> <ja...@microsoft.com>; KY Srinivasan <k...@microsoft.com>; Haiyang
> Zhang <haiya...@microsoft.com>; Stephen Hemminger
> <sthem...@microsoft.com>; Stephen Hemminger
> <step...@networkplumber.org>; Sasha Levin <sas...@kernel.org>; Bjorn
> Helgaas <bhelg...@google.com>; Dexuan Cui <de...@microsoft.com>
> Subject: [PATCH] PCI: pci-hyperv: fix build errors on non-SYSFS config
>
> From: Randy Dunlap <rdun...@infradead.org>
>
> 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 <rdun...@infradead.org>
> Cc: Matthew Wilcox <wi...@infradead.org>
> Cc: Jake Oshins <ja...@microsoft.com>
> Cc: "K. Y. Srinivasan" <k...@microsoft.com>
> Cc: Haiyang Zhang <haiya...@microsoft.com>
> Cc: Stephen Hemminger <sthem...@microsoft.com>
> Cc: Stephen Hemminger <step...@networkplumber.org>
> Cc: Sasha Levin <sas...@kernel.org>
> Cc: Bjorn Helgaas <bhelg...@google.com>
> Cc: linux-...@vger.kernel.org
> Cc: linux-hyp...@vger.kernel.org
> Cc: Dexuan Cui <de...@microsoft.com>
> ---
> v3: corrected Fixes: tag [Dexuan Cui <de...@microsoft.com>]
> This is the Microsoft-preferred version of the patch.
>
> drivers/pci/Kconfig | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> --- lnx-52.orig/drivers/pci/Kconfig
> +++ lnx-52/drivers/pci/Kconfig
> @@ -181,7 +181,7 @@ config PCI_LABEL
>
> config PCI_HYPERV
> 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
> help
> The PCI device frontend driver allows the kernel to import
> arbitrary
> PCI devices from a PCI backend to support PCI driver domains.
>
Reviewed-by: Haiyang Zhang <haiya...@microsoft.com>
