From: Thierry Reding tred...@nvidia.com
This structure is read-only data and should never be modified.
Signed-off-by: Thierry Reding tred...@nvidia.com
---
drivers/iommu/amd_iommu.c | 4 ++--
drivers/iommu/arm-smmu.c| 2 +-
drivers/iommu/exynos-iommu.c| 2 +-
drivers/iommu/fsl_pamu_domain.c | 2 +-
drivers/iommu/intel-iommu.c | 4 ++--
drivers/iommu/iommu.c | 19 ++-
drivers/iommu/ipmmu-vmsa.c | 2 +-
drivers/iommu/msm_iommu.c | 2 +-
drivers/iommu/omap-iommu.c | 2 +-
drivers/iommu/shmobile-iommu.c | 2 +-
drivers/iommu/tegra-gart.c | 2 +-
drivers/iommu/tegra-smmu.c | 2 +-
include/linux/iommu.h | 4 ++--
13 files changed, 29 insertions(+), 20 deletions(-)
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 4aec6a29e316..7eb0e4246a79 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -81,7 +81,7 @@ LIST_HEAD(hpet_map);
*/
static struct protection_domain *pt_domain;
-static struct iommu_ops amd_iommu_ops;
+static const struct iommu_ops amd_iommu_ops;
static ATOMIC_NOTIFIER_HEAD(ppr_notifier);
int amd_iommu_max_glx_val = -1;
@@ -3473,7 +3473,7 @@ static int amd_iommu_domain_has_cap(struct iommu_domain
*domain,
return 0;
}
-static struct iommu_ops amd_iommu_ops = {
+static const struct iommu_ops amd_iommu_ops = {
.domain_init = amd_iommu_domain_init,
.domain_destroy = amd_iommu_domain_destroy,
.attach_dev = amd_iommu_attach_device,
diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index 1599354e974d..67727294e6b5 100644
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c
@@ -1609,7 +1609,7 @@ static void arm_smmu_remove_device(struct device *dev)
iommu_group_remove_device(dev);
}
-static struct iommu_ops arm_smmu_ops = {
+static const struct iommu_ops arm_smmu_ops = {
.domain_init= arm_smmu_domain_init,
.domain_destroy = arm_smmu_domain_destroy,
.attach_dev = arm_smmu_attach_dev,
diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c
index 99054d2c040d..d037e87a1fe5 100644
--- a/drivers/iommu/exynos-iommu.c
+++ b/drivers/iommu/exynos-iommu.c
@@ -1170,7 +1170,7 @@ static void exynos_iommu_remove_device(struct device *dev)
iommu_group_remove_device(dev);
}
-static struct iommu_ops exynos_iommu_ops = {
+static const struct iommu_ops exynos_iommu_ops = {
.domain_init = exynos_iommu_domain_init,
.domain_destroy = exynos_iommu_domain_destroy,
.attach_dev = exynos_iommu_attach_device,
diff --git a/drivers/iommu/fsl_pamu_domain.c b/drivers/iommu/fsl_pamu_domain.c
index 93072ba44b1d..5b47c5495873 100644
--- a/drivers/iommu/fsl_pamu_domain.c
+++ b/drivers/iommu/fsl_pamu_domain.c
@@ -1140,7 +1140,7 @@ static u32 fsl_pamu_get_windows(struct iommu_domain
*domain)
return dma_domain-win_cnt;
}
-static struct iommu_ops fsl_pamu_ops = {
+static const struct iommu_ops fsl_pamu_ops = {
.domain_init= fsl_pamu_domain_init,
.domain_destroy = fsl_pamu_domain_destroy,
.attach_dev = fsl_pamu_attach_device,
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index 51b6b77dc3e5..9aab7963f424 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -451,7 +451,7 @@ EXPORT_SYMBOL_GPL(intel_iommu_gfx_mapped);
static DEFINE_SPINLOCK(device_domain_lock);
static LIST_HEAD(device_domain_list);
-static struct iommu_ops intel_iommu_ops;
+static const struct iommu_ops intel_iommu_ops;
static int __init intel_iommu_setup(char *str)
{
@@ -4465,7 +4465,7 @@ static void intel_iommu_remove_device(struct device *dev)
iommu_group_remove_device(dev);
}
-static struct iommu_ops intel_iommu_ops = {
+static const struct iommu_ops intel_iommu_ops = {
.domain_init= intel_iommu_domain_init,
.domain_destroy = intel_iommu_domain_destroy,
.attach_dev = intel_iommu_attach_device,
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index 896ce352d88e..5e9e82c73bbf 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -39,6 +39,10 @@ static struct kset *iommu_group_kset;
static struct ida iommu_group_ida;
static struct mutex iommu_group_mutex;
+struct iommu_callback_data {
+ const struct iommu_ops *ops;
+};
+
struct iommu_group {
struct kobject kobj;
struct kobject *devices_kobj;
@@ -520,7 +524,8 @@ EXPORT_SYMBOL_GPL(iommu_group_id);
static int add_iommu_group(struct device *dev, void *data)
{
- struct iommu_ops *ops = data;
+ struct iommu_callback_data *cb = data;
+ const struct iommu_ops *ops = cb-ops;
if (!ops-add_device)
return -ENODEV;
@@ -536,7 +541,7 @@ static int iommu_bus_notifier(struct notifier_block *nb,
unsigned long action, void *data)
{
struct device *dev = data;
- struct
