Re: [PATCH rfcv1 4/8] iommu/arm-smmu-v3: Introduce a per-domain arm_smmu_invs array

Nicolin Chen
2025-09-08T18:21:19Z

On Mon, Sep 08, 2025 at 12:51:49PM -0300, Jason Gunthorpe wrote:
> On Sat, Sep 06, 2025 at 01:16:45AM -0700, Nicolin Chen wrote:
> > > /*
> > > * A sorted array allows batching invalidations together for fewer SYNCs.
> > > * Also, ATS must follow the ASID/VMID invalidation SYNC.
> > > */
> > > sort_nonatomic(new_invs->inv, new_invs->num_invs,
> > > sizeof(add_invs->inv[0]), arm_smmu_invs_cmp, NULL);
> > > return new_invs;
>
> This should be deleted, merge sort always makes sorted lists.

I see. Dropping it.

Thanks
Nicolin