Re: [PATCH v3 3/3] x86/irq, iommu/amd, x86/hyperv, PCI: Drop redundant irq_retrigger inits

[Thomas Gleixner]

On Mon, Sep 07 2026 at 06:51, Naman Jain wrote:

> With fixup_irqs() and the generic resend path (try_retrigger()) now both
> falling back to irq_chip_retrigger_hierarchy(), installing it as the
> irq_retrigger() callback on the outermost domain chips is no longer
> required. The hierarchy walk reaches the x86 vector domain's
> apic_retrigger_irq() for all of these stacked domain chips.
>
> Remove the now redundant irq_retrigger() initializations from the outermost
> domain interrupt chips, including the Hyper-V root partition PCI/MSI chip.
> msi_set_affinity() is the only site that invoked the outermost chip's
> irq_retrigger() directly. Convert it to irq_chip_retrigger_hierarchy() so
> the x86_init_dev_msi_info() initialization can be dropped as well.
>
> No functional change intended.
>
> Suggested-by: Thomas Gleixner <tglx@xxxxxxxxxx>
> Reviewed-by: Shradha Gupta <shradhagupta@xxxxxxxxxxxxxxxxxxx>
> Signed-off-by: Naman Jain <namjain@xxxxxxxxxxxxxxxxxxx>

Reviewed-by: Thomas Gleixner <tglx@xxxxxxxxxx>