From: Christoph Hellwig <hch@lst.de>
To: Joerg Roedel <joro@8bytes.org>,
Alex Williamson <alex.williamson@redhat.com>
Cc: David Woodhouse <dwmw2@infradead.org>,
Lu Baolu <baolu.lu@linux.intel.com>,
Will Deacon <will@kernel.org>,
Kirti Wankhede <kwankhede@nvidia.com>,
Jason Gunthorpe <jgg@ziepe.ca>,
linux-arm-kernel@lists.infradead.org,
iommu@lists.linux-foundation.org, kvm@vger.kernel.org
Subject: [PATCH 2/6] iommu: remove the unused iommu_aux_get_pasid interface
Date: Mon, 10 May 2021 08:54:01 +0200 [thread overview]
Message-ID: <20210510065405.2334771-3-hch@lst.de> (raw)
In-Reply-To: <20210510065405.2334771-1-hch@lst.de>
This function was never used since it was added more than 2 years ago.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
drivers/iommu/intel/iommu.c | 10 ----------
drivers/iommu/iommu.c | 11 -----------
include/linux/iommu.h | 9 ---------
3 files changed, 30 deletions(-)
diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c
index ba1060f6785119..cc07f316adcb18 100644
--- a/drivers/iommu/intel/iommu.c
+++ b/drivers/iommu/intel/iommu.c
@@ -5375,15 +5375,6 @@ intel_iommu_dev_feat_enabled(struct device *dev, enum iommu_dev_features feat)
return false;
}
-static int
-intel_iommu_aux_get_pasid(struct iommu_domain *domain, struct device *dev)
-{
- struct dmar_domain *dmar_domain = to_dmar_domain(domain);
-
- return dmar_domain->default_pasid > 0 ?
- dmar_domain->default_pasid : -EINVAL;
-}
-
static bool intel_iommu_is_attach_deferred(struct iommu_domain *domain,
struct device *dev)
{
@@ -5485,7 +5476,6 @@ const struct iommu_ops intel_iommu_ops = {
.detach_dev = intel_iommu_detach_device,
.aux_attach_dev = intel_iommu_aux_attach_device,
.aux_detach_dev = intel_iommu_aux_detach_device,
- .aux_get_pasid = intel_iommu_aux_get_pasid,
.map = intel_iommu_map,
.iotlb_sync_map = intel_iommu_iotlb_sync_map,
.unmap = intel_iommu_unmap,
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index 808ab70d5df50f..6721ac17baf29b 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -2934,17 +2934,6 @@ void iommu_aux_detach_device(struct iommu_domain *domain, struct device *dev)
}
EXPORT_SYMBOL_GPL(iommu_aux_detach_device);
-int iommu_aux_get_pasid(struct iommu_domain *domain, struct device *dev)
-{
- int ret = -ENODEV;
-
- if (domain->ops->aux_get_pasid)
- ret = domain->ops->aux_get_pasid(domain, dev);
-
- return ret;
-}
-EXPORT_SYMBOL_GPL(iommu_aux_get_pasid);
-
/**
* iommu_sva_bind_device() - Bind a process address space to a device
* @dev: the device
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index 1092a7f967a5e8..d8aa5c8a5ba57a 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -202,7 +202,6 @@ struct iommu_iotlb_gather {
* iommu specific features.
* @dev_feat_enabled: check enabled feature
* @aux_attach/detach_dev: aux-domain specific attach/detach entries.
- * @aux_get_pasid: get the pasid given an aux-domain
* @sva_bind: Bind process address space to device
* @sva_unbind: Unbind process address space from device
* @sva_get_pasid: Get PASID associated to a SVA handle
@@ -262,7 +261,6 @@ struct iommu_ops {
/* Aux-domain specific attach/detach entries */
int (*aux_attach_dev)(struct iommu_domain *domain, struct device *dev);
void (*aux_detach_dev)(struct iommu_domain *domain, struct device *dev);
- int (*aux_get_pasid)(struct iommu_domain *domain, struct device *dev);
struct iommu_sva *(*sva_bind)(struct device *dev, struct mm_struct *mm,
void *drvdata);
@@ -594,7 +592,6 @@ int iommu_dev_disable_feature(struct device *dev, enum iommu_dev_features f);
bool iommu_dev_feature_enabled(struct device *dev, enum iommu_dev_features f);
int iommu_aux_attach_device(struct iommu_domain *domain, struct device *dev);
void iommu_aux_detach_device(struct iommu_domain *domain, struct device *dev);
-int iommu_aux_get_pasid(struct iommu_domain *domain, struct device *dev);
struct iommu_sva *iommu_sva_bind_device(struct device *dev,
struct mm_struct *mm,
@@ -945,12 +942,6 @@ iommu_aux_detach_device(struct iommu_domain *domain, struct device *dev)
{
}
-static inline int
-iommu_aux_get_pasid(struct iommu_domain *domain, struct device *dev)
-{
- return -ENODEV;
-}
-
static inline struct iommu_sva *
iommu_sva_bind_device(struct device *dev, struct mm_struct *mm, void *drvdata)
{
--
2.30.2
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next prev parent reply other threads:[~2021-05-10 6:56 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-10 6:53 more iommu dead code removal Christoph Hellwig
2021-05-10 6:54 ` [PATCH 1/6] iommu: remove the unused dev_has_feat method Christoph Hellwig
2021-05-10 6:54 ` Christoph Hellwig [this message]
2021-05-10 6:54 ` [PATCH 3/6] vfio: remove the unused mdev iommu hook Christoph Hellwig
2021-05-10 15:54 ` Jason Gunthorpe
2021-05-13 3:28 ` Tian, Kevin
2021-05-13 12:00 ` Jason Gunthorpe
2021-05-14 6:27 ` Tian, Kevin
2021-05-14 6:54 ` Tian, Kevin
2021-05-14 12:19 ` Jason Gunthorpe
2021-05-14 12:58 ` Tian, Kevin
2021-05-14 13:31 ` Jason Gunthorpe
2021-05-17 12:22 ` Joerg Roedel
2021-05-17 12:30 ` Jason Gunthorpe
2021-05-17 12:53 ` Joerg Roedel
2021-05-17 13:35 ` Jason Gunthorpe
2021-05-17 15:35 ` Joerg Roedel
2021-05-19 15:23 ` Robin Murphy
2021-05-19 18:06 ` Jason Gunthorpe
2021-05-19 23:12 ` Tian, Kevin
2021-05-19 23:24 ` Jason Gunthorpe
2021-05-20 14:13 ` Robin Murphy
2021-05-20 14:34 ` Jason Gunthorpe
2021-05-24 18:18 ` Robin Murphy
2021-05-25 0:00 ` Jason Gunthorpe
2021-06-30 9:08 ` Tian, Kevin
2021-07-22 13:34 ` Christoph Hellwig
2021-07-23 5:36 ` Tian, Kevin
2021-07-23 5:41 ` Christoph Hellwig
2021-07-23 5:44 ` Tian, Kevin
2021-07-22 6:02 ` Tian, Kevin
2021-05-14 13:17 ` Tian, Kevin
2021-05-14 13:39 ` Jason Gunthorpe
2021-05-14 14:28 ` Tian, Kevin
2021-05-14 14:44 ` Jason Gunthorpe
2021-05-10 6:54 ` [PATCH 4/6] iommu: remove iommu_aux_{attach,detach}_device Christoph Hellwig
2021-05-10 6:54 ` [PATCH 5/6] iommu: remove IOMMU_DEV_FEAT_AUX Christoph Hellwig
2021-05-10 6:54 ` [PATCH 6/6] iommu: remove iommu_dev_feature_enabled Christoph Hellwig
2021-05-10 11:54 ` more iommu dead code removal Jason Gunthorpe
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