iommu/ipmmu-vmsa: Clean up device tracking

Get rid of now unused device tracking code. Future code should instead
be able to use driver_for_each_device() for this purpose.

This is a simplified version of the following patch from Robin
[PATCH] iommu/ipmmu-vmsa: Clean up group allocation

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Signed-off-by: Joerg Roedel <jroedel@suse.de>

diff --git a/drivers/iommu/ipmmu-vmsa.c b/drivers/iommu/ipmmu-vmsa.c
index 47cbf70e4e19c773a2598b159ebe5a7f729a6db3..5093d1c4f46d0974e8ec65a1a349df643e5b96a2 100644 (file)
--- a/drivers/iommu/ipmmu-vmsa.c
+++ b/drivers/iommu/ipmmu-vmsa.c
@@ -37,7 +37,6 @@ struct ipmmu_vmsa_device {
        struct device *dev;
        void __iomem *base;
        struct iommu_device iommu;
-       struct list_head list;
 
        unsigned int num_utlbs;
        spinlock_t lock;                        /* Protects ctx and domains[] */
@@ -64,9 +63,6 @@ struct ipmmu_vmsa_iommu_priv {
        struct list_head list;
 };
 
-static DEFINE_SPINLOCK(ipmmu_devices_lock);
-static LIST_HEAD(ipmmu_devices);
-
 static struct ipmmu_vmsa_domain *to_vmsa_domain(struct iommu_domain *dom)
 {
        return container_of(dom, struct ipmmu_vmsa_domain, io_domain);
@@ -970,10 +966,6 @@ static int ipmmu_probe(struct platform_device *pdev)
         * ipmmu_init() after the probe function returns.
         */
 
-       spin_lock(&ipmmu_devices_lock);
-       list_add(&mmu->list, &ipmmu_devices);
-       spin_unlock(&ipmmu_devices_lock);
-
        platform_set_drvdata(pdev, mmu);
 
        return 0;
@@ -983,10 +975,6 @@ static int ipmmu_remove(struct platform_device *pdev)
 {
        struct ipmmu_vmsa_device *mmu = platform_get_drvdata(pdev);
 
-       spin_lock(&ipmmu_devices_lock);
-       list_del(&mmu->list);
-       spin_unlock(&ipmmu_devices_lock);
-
        iommu_device_unregister(&mmu->iommu);
 
 #if defined(CONFIG_ARM) && !defined(CONFIG_IOMMU_DMA)