diff options
| author | Joerg Roedel <jroedel@suse.de> | 2019-04-26 16:17:20 +0300 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2019-04-26 16:17:20 +0300 |
| commit | c805b428f206a9097ef8c905d8b7e40bc411100e (patch) | |
| tree | 5b12b4df54310d46584c9e3a29c3939b53ced51d /drivers/iommu/amd_iommu.c | |
| parent | 7a5dbf3ab2f04905cf8468c66fcdbfb643068bcb (diff) | |
| download | linux-c805b428f206a9097ef8c905d8b7e40bc411100e.tar.xz | |
iommu/amd: Remove amd_iommu_pd_list
This variable hold a global list of allocated protection
domains in the AMD IOMMU driver. By now this list is never
traversed anymore, so the list and the lock protecting it
can be removed.
Cc: Tom Murphy <tmurphy@arista.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/amd_iommu.c')
| -rw-r--r-- | drivers/iommu/amd_iommu.c | 33 |
1 files changed, 0 insertions, 33 deletions
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index f467cc4b498e..3e0696cf965c 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -1723,31 +1723,6 @@ static void dma_ops_free_iova(struct dma_ops_domain *dma_dom, * ****************************************************************************/ -/* - * This function adds a protection domain to the global protection domain list - */ -static void add_domain_to_list(struct protection_domain *domain) -{ - unsigned long flags; - - spin_lock_irqsave(&amd_iommu_pd_lock, flags); - list_add(&domain->list, &amd_iommu_pd_list); - spin_unlock_irqrestore(&amd_iommu_pd_lock, flags); -} - -/* - * This function removes a protection domain to the global - * protection domain list - */ -static void del_domain_from_list(struct protection_domain *domain) -{ - unsigned long flags; - - spin_lock_irqsave(&amd_iommu_pd_lock, flags); - list_del(&domain->list); - spin_unlock_irqrestore(&amd_iommu_pd_lock, flags); -} - static u16 domain_id_alloc(void) { int id; @@ -1838,8 +1813,6 @@ static void dma_ops_domain_free(struct dma_ops_domain *dom) if (!dom) return; - del_domain_from_list(&dom->domain); - put_iova_domain(&dom->iovad); free_pagetable(&dom->domain); @@ -1880,8 +1853,6 @@ static struct dma_ops_domain *dma_ops_domain_alloc(void) /* Initialize reserved ranges */ copy_reserved_iova(&reserved_iova_ranges, &dma_dom->iovad); - add_domain_to_list(&dma_dom->domain); - return dma_dom; free_dma_dom: @@ -2834,8 +2805,6 @@ static void protection_domain_free(struct protection_domain *domain) if (!domain) return; - del_domain_from_list(domain); - if (domain->id) domain_id_free(domain->id); @@ -2865,8 +2834,6 @@ static struct protection_domain *protection_domain_alloc(void) if (protection_domain_init(domain)) goto out_err; - add_domain_to_list(domain); - return domain; out_err: |