Re: [PATCH] iommu/arm-smmu-v3: Fix size calculation in arm_smmu_mm_invalidate_range()

On Tue, Apr 19, 2022 at 08:10:34PM -0300, Jason Gunthorpe wrote:

...

• size_t size = end - start + 1;
  

• size_t size;
  

• /*
  

•  * The mm_types defines vm_end as the first byte after the end address,
  

•  * different from IOMMU subsystem using the last address of an address
  

•  * range. So do a simple translation here by calculating size correctly.
  

•  */
  

• size = end - start;
  

I would skip the comment though

It's a bit of highlight here to help us remember in the future, per Robin's comments at my previous patch.

Thanks! Nic