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| author | Lu Baolu <baolu.lu@linux.intel.com> | 2021-03-23 09:05:58 +0800 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2021-04-07 10:15:19 +0200 |
| commit | 06905ea8319731036695cf1a4c53c12b0f9373cb (patch) | |
| tree | dacef73ef4ee613b4bb8e54ba3d7ad7abd136431 /drivers/iommu/intel/svm.c | |
| parent | 2e1a44c1c4acf209c0dd7bc04421d101b9e80d11 (diff) | |
| download | lwn-06905ea8319731036695cf1a4c53c12b0f9373cb.tar.gz lwn-06905ea8319731036695cf1a4c53c12b0f9373cb.zip | |
iommu/vt-d: Remove SVM_FLAG_PRIVATE_PASID
The SVM_FLAG_PRIVATE_PASID has never been referenced in the tree, and
there's no plan to have anything to use it. So cleanup it.
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20210323010600.678627-4-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/intel/svm.c')
| -rw-r--r-- | drivers/iommu/intel/svm.c | 40 |
1 files changed, 18 insertions, 22 deletions
diff --git a/drivers/iommu/intel/svm.c b/drivers/iommu/intel/svm.c index 933fe11797a1..f77184a9defb 100644 --- a/drivers/iommu/intel/svm.c +++ b/drivers/iommu/intel/svm.c @@ -465,9 +465,9 @@ intel_svm_bind_mm(struct device *dev, unsigned int flags, struct mm_struct *mm, struct intel_svm_dev **sd) { struct intel_iommu *iommu = device_to_iommu(dev, NULL, NULL); + struct intel_svm *svm = NULL, *t; struct device_domain_info *info; struct intel_svm_dev *sdev; - struct intel_svm *svm = NULL; unsigned long iflags; int pasid_max; int ret; @@ -493,30 +493,26 @@ intel_svm_bind_mm(struct device *dev, unsigned int flags, } } - if (!(flags & SVM_FLAG_PRIVATE_PASID)) { - struct intel_svm *t; - - list_for_each_entry(t, &global_svm_list, list) { - if (t->mm != mm || (t->flags & SVM_FLAG_PRIVATE_PASID)) - continue; - - svm = t; - if (svm->pasid >= pasid_max) { - dev_warn(dev, - "Limited PASID width. Cannot use existing PASID %d\n", - svm->pasid); - ret = -ENOSPC; - goto out; - } + list_for_each_entry(t, &global_svm_list, list) { + if (t->mm != mm) + continue; - /* Find the matching device in svm list */ - for_each_svm_dev(sdev, svm, dev) { - sdev->users++; - goto success; - } + svm = t; + if (svm->pasid >= pasid_max) { + dev_warn(dev, + "Limited PASID width. Cannot use existing PASID %d\n", + svm->pasid); + ret = -ENOSPC; + goto out; + } - break; + /* Find the matching device in svm list */ + for_each_svm_dev(sdev, svm, dev) { + sdev->users++; + goto success; } + + break; } sdev = kzalloc(sizeof(*sdev), GFP_KERNEL); |