diff options
Diffstat (limited to 'drivers/iommu/amd_iommu.c')
| -rw-r--r-- | drivers/iommu/amd_iommu.c | 10 |
1 files changed, 1 insertions, 9 deletions
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index 2369b8af81f3..97ca4ed4ce0c 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -2934,7 +2934,6 @@ static void protection_domain_free(struct protection_domain *domain) static int protection_domain_init(struct protection_domain *domain) { spin_lock_init(&domain->lock); - mutex_init(&domain->api_lock); domain->id = domain_id_alloc(); if (!domain->id) return -ENOMEM; @@ -3121,9 +3120,7 @@ static int amd_iommu_map(struct iommu_domain *dom, unsigned long iova, if (iommu_prot & IOMMU_WRITE) prot |= IOMMU_PROT_IW; - mutex_lock(&domain->api_lock); ret = iommu_map_page(domain, iova, paddr, page_size, prot, GFP_KERNEL); - mutex_unlock(&domain->api_lock); domain_flush_np_cache(domain, iova, page_size); @@ -3135,16 +3132,11 @@ static size_t amd_iommu_unmap(struct iommu_domain *dom, unsigned long iova, struct iommu_iotlb_gather *gather) { struct protection_domain *domain = to_pdomain(dom); - size_t unmap_size; if (domain->mode == PAGE_MODE_NONE) return 0; - mutex_lock(&domain->api_lock); - unmap_size = iommu_unmap_page(domain, iova, page_size); - mutex_unlock(&domain->api_lock); - - return unmap_size; + return iommu_unmap_page(domain, iova, page_size); } static phys_addr_t amd_iommu_iova_to_phys(struct iommu_domain *dom, |