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iommu/amd: Get rid of __unbind_pasid

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Unbind_pasid is only called from mn_release which already
has the pasid_state. Use this to simplify the unbind_pasid
path and get rid of __unbind_pasid.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
Tested-by: Oded Gabbay <Oded.Gabbay@amd.com>
This commit is contained in:
Joerg Roedel 2014-07-08 14:19:35 +02:00
parent c5db16ad6c
commit 61feb43897
1 changed files with 2 additions and 15 deletions
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17
drivers/iommu/amd_iommu_v2.c
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@ -99,7 +99,6 @@ static struct workqueue_struct *iommu_wq;
static u64 *empty_page_table;
static void free_pasid_states(struct device_state *dev_state);
static void unbind_pasid(struct device_state *dev_state, int pasid);
static u16 device_id(struct pci_dev *pdev)
{
@ -301,7 +300,7 @@ static void put_pasid_state_wait(struct pasid_state *pasid_state)
free_pasid_state(pasid_state);
}
static void __unbind_pasid(struct pasid_state *pasid_state)
static void unbind_pasid(struct pasid_state *pasid_state)
{
struct iommu_domain *domain;
@ -314,18 +313,6 @@ static void __unbind_pasid(struct pasid_state *pasid_state)
flush_workqueue(iommu_wq);
}
static void unbind_pasid(struct device_state *dev_state, int pasid)
{
struct pasid_state *pasid_state;
pasid_state = get_pasid_state(dev_state, pasid);
if (pasid_state == NULL)
return;
__unbind_pasid(pasid_state);
put_pasid_state(pasid_state); /* Reference taken in this function */
}
static void free_pasid_states_level1(struct pasid_state **tbl)
{
int i;
@ -480,7 +467,7 @@ static void mn_release(struct mmu_notifier *mn, struct mm_struct *mm)
if (pasid_state->device_state->inv_ctx_cb)
dev_state->inv_ctx_cb(dev_state->pdev, pasid_state->pasid);
unbind_pasid(dev_state, pasid_state->pasid);
unbind_pasid(pasid_state);
}
static struct mmu_notifier_ops iommu_mn = {