On 7/28/21 11:58 PM, Robin Murphy wrote:
iommu_dma_init_domain() is now only called from iommu_setup_dma_ops(),
which has already assumed dev to be non-NULL.
Reviewed-by: John Garry <john.ga...@huawei.com>
Signed-off-by: Robin Murphy <robin.mur...@arm.com>
---
drivers/iommu/dma-iommu.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c
index 10067fbc4309..e28396cea6eb 100644
--- a/drivers/iommu/dma-iommu.c
+++ b/drivers/iommu/dma-iommu.c
@@ -363,7 +363,7 @@ static int iommu_dma_init_domain(struct iommu_domain
*domain, dma_addr_t base,
init_iova_domain(iovad, 1UL << order, base_pfn);
- if (!cookie->fq_domain && (!dev || !dev_is_untrusted(dev)) &&
+ if (!cookie->fq_domain && !dev_is_untrusted(dev) &&
domain->ops->flush_iotlb_all && !iommu_get_dma_strict(domain)) {
if (init_iova_flush_queue(iovad, iommu_dma_flush_iotlb_all,
iommu_dma_entry_dtor))
@@ -372,9 +372,6 @@ static int iommu_dma_init_domain(struct iommu_domain
*domain, dma_addr_t base,
cookie->fq_domain = domain;
}
- if (!dev)
- return 0;
-
return iova_reserve_iommu_regions(dev, domain);
}
Reviewed-by: Lu Baolu <baolu...@linux.intel.com>
Best regards,
baolu
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