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authorLu Baolu <baolu.lu@linux.intel.com>2020-07-24 04:49:21 +0300
committerJoerg Roedel <jroedel@suse.de>2020-07-24 11:51:21 +0300
commitdd6692f1b883bac46036000a1e3a0b3785f89e87 (patch)
treec3942f412660c1581d5ae51995298b59854760ff /include/linux/intel-iommu.h
parentd315e9e684d1efd4cb2e8cd70b8d71dec02fcf1f (diff)
downloadlinux-dd6692f1b883bac46036000a1e3a0b3785f89e87.tar.xz
iommu/vt-d: Refactor device_to_iommu() helper
It is refactored in two ways: - Make it global so that it could be used in other files. - Make bus/devfn optional so that callers could ignore these two returned values when they only want to get the coresponding iommu pointer. Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Reviewed-by: Kevin Tian <kevin.tian@intel.com> Link: https://lore.kernel.org/r/20200724014925.15523-9-baolu.lu@linux.intel.com Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'include/linux/intel-iommu.h')
-rw-r--r--include/linux/intel-iommu.h3
1 files changed, 1 insertions, 2 deletions
diff --git a/include/linux/intel-iommu.h b/include/linux/intel-iommu.h
index c7a8aae36771..a57ffbcc84c7 100644
--- a/include/linux/intel-iommu.h
+++ b/include/linux/intel-iommu.h
@@ -727,6 +727,7 @@ void iommu_flush_write_buffer(struct intel_iommu *iommu);
int intel_iommu_enable_pasid(struct intel_iommu *iommu, struct device *dev);
struct dmar_domain *find_domain(struct device *dev);
struct device_domain_info *get_domain_info(struct device *dev);
+struct intel_iommu *device_to_iommu(struct device *dev, u8 *bus, u8 *devfn);
#ifdef CONFIG_INTEL_IOMMU_SVM
extern void intel_svm_check(struct intel_iommu *iommu);
@@ -765,8 +766,6 @@ struct intel_svm {
struct list_head devs;
struct list_head list;
};
-
-extern struct intel_iommu *intel_svm_device_to_iommu(struct device *dev);
#else
static inline void intel_svm_check(struct intel_iommu *iommu) {}
#endif