Re: [PATCH] iommu/amd: Mark interrupt as managed

From: Joerg Roedel
Date: Fri Feb 09 2024 - 10:56:39 EST


On Fri, Feb 09, 2024 at 09:48:57AM -0600, Mario Limonciello wrote:
> Thanks! This problem should go all the way to when MSI support was
> introduced (2.6.28):
>
> a80dc3e0e0dc ("AMD IOMMU: add MSI interrupt support")

That makes most sense to me, also if it only uncovers with ...

>
> But I don't think that's a correct fixes tag because
> irq_managed wasn't introduced until 3.19:
>
> cffe0a2b5a34 ("x86, irq: Keep balance of IOAPIC pin reference count")

This one.

> But then I tried to go off the original introduction of the error message,
> but that's quite ancient.
>
> 1da177e4c3f4 ("Linux-2.6.12-rc2")

That is not relevant, as the first AMD IOMMU driver was only merged for
2.6.27 :)

> Cc: stable@xxxxxxxxxxxxxxx # 3.19+

That makes sense too.

Regards,

Joerg