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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>
This commit is contained in:
Robin Murphy 2017-07-17 22:05:51 +09:00 committed by Joerg Roedel
parent 7b2d59611f
commit 02dd44caec
1 changed files with 0 additions and 12 deletions
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12
drivers/iommu/ipmmu-vmsa.c
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@ -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)