linux-kernel - Re: [tip: x86/apic] x86/apic: Drop apic::delivery

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Date:   Tue, 21 Nov 2023 13:04:11 +0100
From:   Borislav Petkov <bp@...en8.de>
To:     linux-kernel@...r.kernel.org
Cc:     linux-tip-commits@...r.kernel.org,
        Andrew Cooper <andrew.cooper3@...rix.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Steve Wahl <steve.wahl@....com>, x86@...nel.org
Subject: Re: [tip: x86/apic] x86/apic: Drop apic::delivery_mode

On Tue, Nov 21, 2023 at 08:43:13AM -0000, tip-bot2 for Andrew Cooper wrote:
> The following commit has been merged into the x86/apic branch of tip:
> 
> Commit-ID:     b5148dfe66f5b04fdf85fbd3d0954e83792fa36c
> Gitweb:        https://git.kernel.org/tip/b5148dfe66f5b04fdf85fbd3d0954e83792fa36c
> Author:        Andrew Cooper <andrew.cooper3@...rix.com>
> AuthorDate:    Thu, 02 Nov 2023 12:26:19 
> Committer:     Thomas Gleixner <tglx@...utronix.de>
> CommitterDate: Tue, 21 Nov 2023 09:37:30 +01:00
> 
> x86/apic: Drop apic::delivery_mode
> 
> This field is set to APIC_DELIVERY_MODE_FIXED in all cases, and is read
> exactly once.  Fold the constant in uv_program_mmr() and drop the field.
> 
> Searching for the origin of the stale HyperV comment reveals commit
> a31e58e129f7 ("x86/apic: Switch all APICs to Fixed delivery mode") which
> notes:
> 
>   As a consequence of this change, the apic::irq_delivery_mode field is
>   now pointless, but this needs to be cleaned up in a separate patch.

Looks like you folks missed a spot or three:

drivers/iommu/amd/iommu.c: In function ‘irq_remapping_prepare_irte’:
drivers/iommu/amd/iommu.c:3360:51: error: ‘struct apic’ has no member named ‘delivery_mode’
 3360 |         iommu->irte_ops->prepare(data->entry, apic->delivery_mode,
      |                                                   ^~
drivers/iommu/amd/iommu.c: In function ‘amd_iommu_deactivate_guest_mode’:
drivers/iommu/amd/iommu.c:3637:50: error: ‘struct apic’ has no member named ‘delivery_mode’
 3637 |         entry->lo.fields_remap.int_type    = apic->delivery_mode;
      |                                                  ^~
make[5]: *** [scripts/Makefile.build:243: drivers/iommu/amd/iommu.o] Error 1
make[4]: *** [scripts/Makefile.build:480: drivers/iommu/amd] Error 2
make[4]: *** Waiting for unfinished jobs....
drivers/iommu/intel/irq_remapping.c: In function ‘prepare_irte’:
drivers/iommu/intel/irq_remapping.c:1115:32: error: ‘struct apic’ has no member named ‘delivery_mode’
 1115 |         irte->dlvry_mode = apic->delivery_mode;
      |                                ^~
make[5]: *** [scripts/Makefile.build:243: drivers/iommu/intel/irq_remapping.o] Error 1
make[4]: *** [scripts/Makefile.build:480: drivers/iommu/intel] Error 2
make[3]: *** [scripts/Makefile.build:480: drivers/iommu] Error 2
make[3]: *** Waiting for unfinished jobs....
make[2]: *** [scripts/Makefile.build:480: drivers] Error 2
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [/mnt/kernel/kernel/3rd/linux/Makefile:1911: .] Error 2
make: *** [Makefile:234: __sub-make] Error 2

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette