Re: [PATCH] iommu: Remove redundant null check in iommu_iotlb_gather_queued

[Will Deacon]

On Mon, Nov 10, 2025 at 09:19:52PM -0800, Aashish Sharma wrote:
> The callers of 'iommu_iotlb_gather_queued' always have a non-null
> 'gather', so we don't need to check for the same in the function.

That's not obviously true to me, how did you check it?

For example, msm_iommu_pagetable_unmap() appears to call into
io_pgtable_ops::unmap_pages() with a NULL gather pointer.

Will