Re: [GIT PULL] PCIe Link Encryption and Device Authentication

[Linus Torvalds]

On Fri, 5 Dec 2025 at 19:08, <dan.j.williams@xxxxxxxxx> wrote:
>
> Alexey Kardashevskiy (4):
>       iommu/amd: Report SEV-TIO support

Bah, I've merged this and pushed things out, because my allmodconfig
build was fine.

But more testing shows that this is broken.

The amd_iommu_sev_tio_supported() function is only defined for
CONFIG_KVM_AMD_SEV, but the <linux/amd-iommu.h> header put it inside
the CONFIG_AMD_IOMMU config option block.

So if you have AMD_IOMMU enabled without KVM_AMD_SEV you end up with a
broken build:

   ERROR: modpost: "amd_iommu_sev_tio_supported"
[drivers/crypto/ccp/ccp.ko] undefined!
   make[2]: *** [scripts/Makefile.modpost:147: Module.symvers] Error 1

I've pushed out a minimal fix that seems to work for me.

Please check - and be more careful. This is _not_ some kind of odd config.

              Linus