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From: Jiang Liu <jiang.liu@linux.intel.com>
To: Joerg Roedel <joro@8bytes.org>,
	David Woodhouse <dwmw2@infradead.org>,
	Yann Droneaud <ydroneaud@opteya.com>,
	Tony Luck <tony.luck@intel.com>,
	Fenghua Yu <fenghua.yu@intel.com>
Cc: Jiang Liu <jiang.liu@linux.intel.com>,
	iommu@lists.linux-foundation.org, x86@kernel.org,
	linux-kernel@vger.kernel.org
Subject: [RFC Patch V1] iommu/vt-d: Fix build failure caused by incorrect Kconfig
Date: Mon,  2 Feb 2015 11:07:44 +0800	[thread overview]
Message-ID: <1422846464-14558-1-git-send-email-jiang.liu@linux.intel.com> (raw)
In-Reply-To: <1422713299.3030.23.camel@opteya.com>

Yann Droneaud <ydroneaud@opteya.com> reported one build failure as
below, which should be caused by incorrect Kconfig.
  CC      arch/ia64/kernel/pci-dma.o
../arch/ia64/kernel/pci-dma.c: In function 'pci_iommu_init':
../arch/ia64/kernel/pci-dma.c:41:3: error: implicit declaration of function 'intel_iommu_init' [-Werror=implicit-function-declaration]
   intel_iommu_init();
   ^
../arch/ia64/kernel/pci-dma.c: In function 'pci_iommu_alloc':
../arch/ia64/kernel/pci-dma.c:103:2: error: implicit declaration of function 'detect_intel_iommu' [-Werror=implicit-function-declaration]
  detect_intel_iommu();
  ^

It should be noted Kconfig complain with the following:

warning: (IA64) selects PM which has unmet direct dependencies (PM_SLEEP || PM_RUNTIME)
warning: (IA64_DIG_VTD) selects INTEL_IOMMU which has unmet direct dependencies (IOMMU_SUPPORT && PCI_MSI && ACPI && (X86 || IA64_GENERIC))
warning: (IA64) selects PM which has unmet direct dependencies (PM_SLEEP || PM_RUNTIME)
warning: (IA64_DIG_VTD) selects INTEL_IOMMU which has unmet direct dependencies (IOMMU_SUPPORT && PCI_MSI && ACPI && (X86 || IA64_GENERIC))

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
---
Hi Yann,
	Could you please help to test whether this patch fix the build
failure and the Kconfig warnings?
Thanks!
Gerry
---
 drivers/iommu/Kconfig |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
index 325188eef1c1..718a0c9f7bdc 100644
--- a/drivers/iommu/Kconfig
+++ b/drivers/iommu/Kconfig
@@ -89,7 +89,7 @@ config DMAR_TABLE
 
 config INTEL_IOMMU
 	bool "Support for Intel IOMMU using DMA Remapping Devices"
-	depends on PCI_MSI && ACPI && (X86 || IA64_GENERIC)
+	depends on PCI_MSI && ACPI && (X86 || IA64_DIG_VTD)
 	select IOMMU_API
 	select DMAR_TABLE
 	help
-- 
1.7.10.4


      reply	other threads:[~2015-02-02  3:04 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-01-31 14:08 ia64: implicit declaration of functions since change on <linux/dmar.h> Yann Droneaud
2015-02-02  3:07 ` Jiang Liu [this message]

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