linux-kernel - Re: [git pull] IOMMU Updates for Linux v5.16

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Date:   Fri, 5 Nov 2021 16:04:25 +0800
From:   Lu Baolu <baolu.lu@...ux.intel.com>
To:     Joerg Roedel <joro@...tes.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     baolu.lu@...ux.intel.com, Will Deacon <will@...nel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        iommu <iommu@...ts.linux-foundation.org>
Subject: Re: [git pull] IOMMU Updates for Linux v5.16

On 2021/11/5 15:35, Joerg Roedel wrote:
> On Thu, Nov 04, 2021 at 11:10:53AM -0700, Linus Torvalds wrote:
>> That too seems to be stale and unused since commit 9bfecd058339
>> ("x86/cpufeatures: Force disable X86_FEATURE_ENQCMD and remove
>> update_pasid()")
>>
>> I left it alone because I didn't want to do any extra development in
>> the merge commit itself, but it looks to me like there's some room for
>> more cleanips. No?
> 
> Yes, looks like this define is unused now. I talk to Baolu whether this
> can be cleaned up too, Baolu?

Yes.

PASID_DISABLED is unused after

commit 9bfecd058339 ("x86/cpufeatures: Force disable X86_FEATURE_ENQCMD
and remove update_pasid()").

and

commit 00ecd5401349a ("iommu/vt-d: Clean up unused PASID updating
functions")

Best regards,
baolu