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iommu: No need to set dmar_disabled in check_zero_address()

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Before the restructruing of the x86 IOMMU code,
intel_iommu_init() was getting called directly from
pci_iommu_init() and hence needed to explicitly set
dmar_disabled to 1 for the failure conditions of
check_zero_address().

Recent changes don't call intel_iommu_init() if the intel iommu
detection fails as a result of failure in check_zero_address().

So no need for this ifdef and the code inside it.

Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: yinghai@kernel.org
Cc: youquan.song@intel.com
Cc: joerg.roedel@amd.com
Cc: tony.luck@intel.com
Cc: dwmw2@infradead.org
Link: http://lkml.kernel.org/r/20110824001456.334878686@sbsiddha-desk.sc.intel.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Suresh Siddha 2011-08-23 17:05:21 -07:00 committed by Ingo Molnar
parent 318fe7df9d
commit 80990c5ba6
1 changed files with 0 additions and 3 deletions
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3
drivers/iommu/dmar.c
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@ -540,9 +540,6 @@ int __init check_zero_address(void)
return 1;
failed:
#ifdef CONFIG_DMAR
dmar_disabled = 1;
#endif
return 0;
}