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author | David S. Miller | 2015-06-09 05:06:56 +0200 |
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committer | David S. Miller | 2015-06-09 05:06:56 +0200 |
commit | 941742f49762ba4c908510f036b09a46c1b14513 (patch) | |
tree | aafb7a72c2072f98889406668003234bed56df02 /drivers/iommu/intel-iommu.c | |
parent | net: phy: dp83867: Fix device tree entries (diff) | |
parent | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net (diff) | |
download | kernel-qcow2-linux-941742f49762ba4c908510f036b09a46c1b14513.tar.gz kernel-qcow2-linux-941742f49762ba4c908510f036b09a46c1b14513.tar.xz kernel-qcow2-linux-941742f49762ba4c908510f036b09a46c1b14513.zip |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'drivers/iommu/intel-iommu.c')
-rw-r--r-- | drivers/iommu/intel-iommu.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index 68d43beccb7e..2ffe58969944 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -696,6 +696,11 @@ static inline struct context_entry *iommu_context_addr(struct intel_iommu *iommu return &context[devfn]; } +static int iommu_dummy(struct device *dev) +{ + return dev->archdata.iommu == DUMMY_DEVICE_DOMAIN_INFO; +} + static struct intel_iommu *device_to_iommu(struct device *dev, u8 *bus, u8 *devfn) { struct dmar_drhd_unit *drhd = NULL; @@ -705,6 +710,9 @@ static struct intel_iommu *device_to_iommu(struct device *dev, u8 *bus, u8 *devf u16 segment = 0; int i; + if (iommu_dummy(dev)) + return NULL; + if (dev_is_pci(dev)) { pdev = to_pci_dev(dev); segment = pci_domain_nr(pdev->bus); @@ -2969,11 +2977,6 @@ static inline struct dmar_domain *get_valid_domain_for_dev(struct device *dev) return __get_valid_domain_for_dev(dev); } -static int iommu_dummy(struct device *dev) -{ - return dev->archdata.iommu == DUMMY_DEVICE_DOMAIN_INFO; -} - /* Check if the dev needs to go through non-identity map and unmap process.*/ static int iommu_no_mapping(struct device *dev) { |