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Subject[PATCH 1/1] iommu: Remove iommu_callback_data
Date
The iommu_callback_data is not used anywhere, remove it to make
the code more concise.

Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
---
drivers/iommu/iommu.c | 11 ++---------
1 file changed, 2 insertions(+), 9 deletions(-)

diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index 33a982e33716..1164b9926a2b 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -45,10 +45,6 @@ static unsigned int iommu_def_domain_type = IOMMU_DOMAIN_DMA;
#endif
static bool iommu_dma_strict __read_mostly = true;

-struct iommu_callback_data {
- const struct iommu_ops *ops;
-};
-
struct iommu_group {
struct kobject kobj;
struct kobject *devices_kobj;
@@ -1215,9 +1211,6 @@ static int iommu_bus_init(struct bus_type *bus, const struct iommu_ops *ops)
{
int err;
struct notifier_block *nb;
- struct iommu_callback_data cb = {
- .ops = ops,
- };

nb = kzalloc(sizeof(struct notifier_block), GFP_KERNEL);
if (!nb)
@@ -1229,7 +1222,7 @@ static int iommu_bus_init(struct bus_type *bus, const struct iommu_ops *ops)
if (err)
goto out_free;

- err = bus_for_each_dev(bus, NULL, &cb, add_iommu_group);
+ err = bus_for_each_dev(bus, NULL, NULL, add_iommu_group);
if (err)
goto out_err;

@@ -1238,7 +1231,7 @@ static int iommu_bus_init(struct bus_type *bus, const struct iommu_ops *ops)

out_err:
/* Clean up */
- bus_for_each_dev(bus, NULL, &cb, remove_iommu_group);
+ bus_for_each_dev(bus, NULL, NULL, remove_iommu_group);
bus_unregister_notifier(bus, nb);

out_free:
--
2.17.1
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