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Message-Id: <20230818101033.4100-2-yi.l.liu@intel.com>
Date: Fri, 18 Aug 2023 03:10:29 -0700
From: Yi Liu <yi.l.liu@...el.com>
To: joro@...tes.org, alex.williamson@...hat.com, jgg@...dia.com,
kevin.tian@...el.com, robin.murphy@....com,
baolu.lu@...ux.intel.com
Cc: cohuck@...hat.com, eric.auger@...hat.com, nicolinc@...dia.com,
kvm@...r.kernel.org, mjrosato@...ux.ibm.com,
chao.p.peng@...ux.intel.com, yi.l.liu@...el.com,
yi.y.sun@...ux.intel.com, peterx@...hat.com, jasowang@...hat.com,
shameerali.kolothum.thodi@...wei.com, lulu@...hat.com,
suravee.suthikulpanit@....com, iommu@...ts.linux.dev,
linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org,
zhenzhong.duan@...el.com
Subject: [PATCH v9 1/5] iommu: Move dev_iommu_ops() to private header
dev_iommu_ops() is essentially only used in iommu subsystem, so move to a
private header to avoid being abused by other drivers.
Suggested-by: Jason Gunthorpe <jgg@...dia.com>
Reviewed-by: Kevin Tian <kevin.tian@...el.com>
Reviewed-by: Lu Baolu <baolu.lu@...ux.intel.com>
Reviewed-by: Jason Gunthorpe <jgg@...dia.com>
Signed-off-by: Yi Liu <yi.l.liu@...el.com>
---
drivers/iommu/iommu-priv.h | 11 +++++++++++
include/linux/iommu.h | 11 -----------
2 files changed, 11 insertions(+), 11 deletions(-)
diff --git a/drivers/iommu/iommu-priv.h b/drivers/iommu/iommu-priv.h
index e3e3b2015854..2024a2313348 100644
--- a/drivers/iommu/iommu-priv.h
+++ b/drivers/iommu/iommu-priv.h
@@ -6,6 +6,17 @@
#include <linux/iommu.h>
+static inline const struct iommu_ops *dev_iommu_ops(struct device *dev)
+{
+ /*
+ * Assume that valid ops must be installed if iommu_probe_device()
+ * has succeeded. The device ops are essentially for internal use
+ * within the IOMMU subsystem itself, so we should be able to trust
+ * ourselves not to misuse the helper.
+ */
+ return dev->iommu->iommu_dev->ops;
+}
+
int iommu_group_replace_domain(struct iommu_group *group,
struct iommu_domain *new_domain);
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index d31642596675..e0245aa82b75 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -450,17 +450,6 @@ static inline void iommu_iotlb_gather_init(struct iommu_iotlb_gather *gather)
};
}
-static inline const struct iommu_ops *dev_iommu_ops(struct device *dev)
-{
- /*
- * Assume that valid ops must be installed if iommu_probe_device()
- * has succeeded. The device ops are essentially for internal use
- * within the IOMMU subsystem itself, so we should be able to trust
- * ourselves not to misuse the helper.
- */
- return dev->iommu->iommu_dev->ops;
-}
-
extern int bus_iommu_probe(const struct bus_type *bus);
extern bool iommu_present(const struct bus_type *bus);
extern bool device_iommu_capable(struct device *dev, enum iommu_cap cap);
--
2.34.1
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