linux-kernel - Re: [PATCH rfcv1 4/8] iommu/arm-smmu-v3: Introduce a per-domain arm_smmu

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <aL8efIbaUl2xxClD@nvidia.com>
Date: Mon, 8 Sep 2025 11:20:44 -0700
From: Nicolin Chen <nicolinc@...dia.com>
To: Jason Gunthorpe <jgg@...dia.com>
CC: <will@...nel.org>, <robin.murphy@....com>, <joro@...tes.org>,
	<jean-philippe@...aro.org>, <miko.lenczewski@....com>, <balbirs@...dia.com>,
	<peterz@...radead.org>, <smostafa@...gle.com>, <kevin.tian@...el.com>,
	<praan@...gle.com>, <zhangzekun11@...wei.com>,
	<linux-arm-kernel@...ts.infradead.org>, <iommu@...ts.linux.dev>,
	<linux-kernel@...r.kernel.org>, <patches@...ts.linux.dev>
Subject: Re: [PATCH rfcv1 4/8] iommu/arm-smmu-v3: Introduce a per-domain
 arm_smmu_invs array

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