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iommu/vt-d: Suppress compiler warnings

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suppress compiler warnings:
drivers/iommu/intel-iommu.c: In function ‘device_to_iommu’:
drivers/iommu/intel-iommu.c:673: warning: ‘segment’ may be used uninitialized in this function
drivers/iommu/intel-iommu.c: In function ‘get_domain_for_dev.clone.3’:
drivers/iommu/intel-iommu.c:2217: warning: ‘bridge_bus’ may be used uninitialized in this function
drivers/iommu/intel-iommu.c:2217: warning: ‘bridge_devfn’ may be used uninitialized in this function

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Yijing Wang 2014-05-26 20:14:06 +08:00 committed by Joerg Roedel
parent effad4b59f
commit aa4d066a2a
1 changed files with 3 additions and 2 deletions
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5
drivers/iommu/intel-iommu.c
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@ -671,7 +671,7 @@ static struct intel_iommu *device_to_iommu(struct device *dev, u8 *bus, u8 *devf
struct intel_iommu *iommu;
struct device *tmp;
struct pci_dev *ptmp, *pdev = NULL;
u16 segment;
u16 segment = 0;
int i;
if (dev_is_pci(dev)) {
@ -2213,7 +2213,8 @@ static struct dmar_domain *get_domain_for_dev(struct device *dev, int gaw)
struct device_domain_info *info;
struct pci_dev *dev_tmp = NULL;
unsigned long flags;
u8 bus, devfn, bridge_bus, bridge_devfn;
u8 bus, devfn;
u8 bridge_bus = 0, bridge_devfn = 0;
domain = find_domain(dev);
if (domain)