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authorChristoph Hellwig <hch@lst.de>2018-07-30 09:36:26 +0200
committerJoerg Roedel <jroedel@suse.de>2018-08-08 11:06:20 +0200
commitd88e61faad526a5850e9330c846641b91cf971e7 (patch)
tree936bfd3d693f904d1a3de9f9e51034ba0dd6329c /drivers/iommu/arm-smmu-v3.c
parent58d1131777a4b7c228267b809bd88f7be66edcfb (diff)
downloadlinux-d88e61faad526a5850e9330c846641b91cf971e7.tar.bz2
iommu: Remove the ->map_sg indirection
All iommu drivers use the default_iommu_map_sg implementation, and there is no good reason to ever override it. Just expose it as iommu_map_sg directly and remove the indirection, specially in our post-spectre world where indirect calls are horribly expensive. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/arm-smmu-v3.c')
-rw-r--r--drivers/iommu/arm-smmu-v3.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c
index 1d647104bccc..f1dc294f8e08 100644
--- a/drivers/iommu/arm-smmu-v3.c
+++ b/drivers/iommu/arm-smmu-v3.c
@@ -1997,7 +1997,6 @@ static struct iommu_ops arm_smmu_ops = {
.attach_dev = arm_smmu_attach_dev,
.map = arm_smmu_map,
.unmap = arm_smmu_unmap,
- .map_sg = default_iommu_map_sg,
.flush_iotlb_all = arm_smmu_iotlb_sync,
.iotlb_sync = arm_smmu_iotlb_sync,
.iova_to_phys = arm_smmu_iova_to_phys,