From: Randy Dunlap <rdunlap@infradead.org>
To: LKML <linux-kernel@vger.kernel.org>, linux-hyperv@vger.kernel.org
Cc: Matthew Wilcox <willy@infradead.org>,
Jake Oshins <jakeo@microsoft.com>,
"K. Y. Srinivasan" <kys@microsoft.com>,
Haiyang Zhang <haiyangz@microsoft.com>,
Stephen Hemminger <sthemmin@microsoft.com>,
Sasha Levin <sashal@kernel.org>,
linux-pci <linux-pci@vger.kernel.org>,
Bjorn Helgaas <bhelgaas@google.com>
Subject: [PATCH] PCI: hv: fix pci-hyperv build, depends on SYSFS
Date: Tue, 2 Jul 2019 16:24:30 -0700 [thread overview]
Message-ID: <69c25bc3-da00-2758-92ee-13c82b51fc45@infradead.org> (raw)
From: Randy Dunlap <rdunlap@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: 4daace0d8ce8 ("PCI: hv: Add paravirtual PCI front-end for Microsoft Hyper-V VMs")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Jake Oshins <jakeo@microsoft.com>
Cc: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: Stephen Hemminger <sthemmin@microsoft.com>
Cc: Sasha Levin <sashal@kernel.org>
Cc: linux-hyperv@vger.kernel.org
---
drivers/pci/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- lnx-52-rc7.orig/drivers/pci/Kconfig
+++ lnx-52-rc7/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.
next reply other threads:[~2019-07-03 1:33 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-02 23:24 Randy Dunlap [this message]
2019-07-03 0:15 ` [PATCH] PCI: hv: fix pci-hyperv build, depends on SYSFS Matthew Wilcox
2019-07-03 3:25 ` Randy Dunlap
2019-07-03 4:40 ` Dexuan Cui
2019-07-03 4:33 ` Dexuan Cui
2019-07-03 5:05 ` Randy Dunlap
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