Re: [PATCH] PCI/MSI: Check MSI_FLAG_PCI_MSI_MASK_PARENT in cond_[startup|shutdown]_parent()

[Mark Brown]

On Wed, Aug 27, 2025 at 02:29:07PM +0800, Inochi Amaoto wrote:
> For msi controller that only supports MSI_FLAG_PCI_MSI_MASK_PARENT,
> the newly added callback irq_startup() and irq_shutdown() for
> pci_msi[x]_templete will not unmask/mask the interrupt when startup/
> shutdown the interrupt. This will prevent the interrupt from being
> enabled/disabled normally.
> 
> Add the missing check for MSI_FLAG_PCI_MSI_MASK_PARENT in the
> cond_[startup|shutdown]_parent(). So the interrupt can be normally
> unmasked/masked if it does not support MSI_FLAG_PCI_MSI_MASK_PARENT.

Tested-by: Mark Brown <broonie@xxxxxxxxxx>

This is causing multiple platforms to fail to boot in -next, it'd be
great if we could get it merged to fix them.

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