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[PATCH v2 2/4] PCI: only build xen-pcifront in PV-enabled environments
- To: "bhelgaas@xxxxxxxxxx" <bhelgaas@xxxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Fri, 17 Sep 2021 12:48:03 +0200
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- Cc: Stefano Stabellini <sstabellini@xxxxxxxxxx>, lkml <linux-kernel@xxxxxxxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>, "hch@xxxxxx" <hch@xxxxxx>, Konrad Wilk <konrad.wilk@xxxxxxxxxx>, "iommu@xxxxxxxxxxxxxxxxxxxxxxxxxx" <iommu@xxxxxxxxxxxxxxxxxxxxxxxxxx>, Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>, Juergen Gross <jgross@xxxxxxxx>, "linux-pci@xxxxxxxxxxxxxxx" <linux-pci@xxxxxxxxxxxxxxx>
- Delivery-date: Fri, 17 Sep 2021 10:48:19 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
The driver's module init function, pcifront_init(), invokes
xen_pv_domain() first thing. That construct produces constant "false"
when !CONFIG_XEN_PV. Hence there's no point building the driver in
non-PV configurations.
Drop the (now implicit and generally wrong) X86 dependency: At present,
XEN_PV con only be set when X86 is also enabled. In general an
architecture supporting Xen PV (and PCI) would want to have this driver
built.
Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
---
v2: Title and description redone.
--- a/drivers/pci/Kconfig
+++ b/drivers/pci/Kconfig
@@ -110,7 +110,7 @@ config PCI_PF_STUB
config XEN_PCIDEV_FRONTEND
tristate "Xen PCI Frontend"
- depends on X86 && XEN
+ depends on XEN_PV
select PCI_XEN
select XEN_XENBUS_FRONTEND
default y
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