[v2 PATCH] iommu/arm-smmu-v3: Fix L1 stream table index calculation for 32-bit sid size
Yang Shi
yang at os.amperecomputing.com
Fri Oct 4 09:05:46 PDT 2024
On 10/4/24 5:43 AM, Jason Gunthorpe wrote:
> On Thu, Oct 03, 2024 at 08:31:23AM -0700, Yang Shi wrote:
>> If I understand correctly, the check is mainly used to avoid the u64 -> u32
>> overflow. This check guarantee no overflow. If some crazy hardware really
>> requests that large memory, the allocation will fail.
> Sure, the kalloc will print a warn on anyhow if it is too big
Thank you. Will spin a new revision.
> Jason
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