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From:   "Isaac J. Manjarres" <isaacm@codeaurora.org>
To:     devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-pci@vger.kernel.org, iommu@lists.linux-foundation.org,
        linux-arm-kernel@lists.infradead.org
Cc:     "Isaac J. Manjarres" <isaacm@codeaurora.org>, robh+dt@kernel.org,
        frowand.list@gmail.com, bhelgaas@google.com, joro@8bytes.org,
        robin.murphy@arm.com, will.deacon@arm.com, kernel-team@android.com,
        pratikp@codeaurora.org, lmark@codeaurora.org
Subject: [RFC/PATCH 3/4] iommu: Export core IOMMU functions to kernel modules
Date:   Fri, 17 May 2019 11:47:36 -0700
Message-Id: <1558118857-16912-4-git-send-email-isaacm@codeaurora.org>
In-Reply-To: <1558118857-16912-1-git-send-email-isaacm@codeaurora.org>
References: <1558118857-16912-1-git-send-email-isaacm@codeaurora.org>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

IOMMU drivers that can be compiled as modules need to use
some of the IOMMU core functions, so expose them.

Signed-off-by: Isaac J. Manjarres <isaacm@codeaurora.org>
---
 drivers/iommu/iommu-sysfs.c | 3 +++
 drivers/iommu/iommu.c       | 6 ++++++
 2 files changed, 9 insertions(+)

diff --git a/drivers/iommu/iommu-sysfs.c b/drivers/iommu/iommu-sysfs.c
index 44127d5..b3dadb8 100644
--- a/drivers/iommu/iommu-sysfs.c
+++ b/drivers/iommu/iommu-sysfs.c
@@ -90,6 +90,7 @@ int iommu_device_sysfs_add(struct iommu_device *iommu,
 	put_device(iommu->dev);
 	return ret;
 }
+EXPORT_SYMBOL_GPL(iommu_device_sysfs_add);
 
 void iommu_device_sysfs_remove(struct iommu_device *iommu)
 {
@@ -122,6 +123,7 @@ int iommu_device_link(struct iommu_device *iommu, struct device *link)
 
 	return ret;
 }
+EXPORT_SYMBOL_GPL(iommu_device_link);
 
 void iommu_device_unlink(struct iommu_device *iommu, struct device *link)
 {
@@ -131,3 +133,4 @@ void iommu_device_unlink(struct iommu_device *iommu, struct device *link)
 	sysfs_remove_link(&link->kobj, "iommu");
 	sysfs_remove_link_from_group(&iommu->dev->kobj, "devices", dev_name(link));
 }
+EXPORT_SYMBOL_GPL(iommu_device_unlink);
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index 109de67..2b92f35 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -103,6 +103,7 @@ int iommu_device_register(struct iommu_device *iommu)
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(iommu_device_register);
 
 void iommu_device_unregister(struct iommu_device *iommu)
 {
@@ -813,6 +814,7 @@ struct iommu_group *iommu_group_ref_get(struct iommu_group *group)
 	kobject_get(group->devices_kobj);
 	return group;
 }
+EXPORT_SYMBOL_GPL(iommu_group_ref_get);
 
 /**
  * iommu_group_put - Decrement group reference
@@ -986,6 +988,7 @@ struct iommu_group *generic_device_group(struct device *dev)
 {
 	return iommu_group_alloc();
 }
+EXPORT_SYMBOL_GPL(generic_device_group);
 
 /*
  * Use standard PCI bus topology, isolation features, and DMA alias quirks
@@ -1053,6 +1056,7 @@ struct iommu_group *pci_device_group(struct device *dev)
 	/* No shared group found, allocate new */
 	return iommu_group_alloc();
 }
+EXPORT_SYMBOL_GPL(pci_device_group);
 
 /* Get the IOMMU group for device on fsl-mc bus */
 struct iommu_group *fsl_mc_device_group(struct device *dev)
@@ -1133,6 +1137,7 @@ struct iommu_group *iommu_group_get_for_dev(struct device *dev)
 
 	return group;
 }
+EXPORT_SYMBOL_GPL(iommu_group_get_for_dev);
 
 struct iommu_domain *iommu_group_default_domain(struct iommu_group *group)
 {
@@ -1913,6 +1918,7 @@ struct iommu_resv_region *iommu_alloc_resv_region(phys_addr_t start,
 	region->type = type;
 	return region;
 }
+EXPORT_SYMBOL_GPL(iommu_alloc_resv_region);
 
 /* Request that a device is direct mapped by the IOMMU */
 int iommu_request_dm_for_dev(struct device *dev)
-- 
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