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SubjectRe: [PATCH v2] PCI/DPC: Fix PCI legacy interrupt acknowledgement
On Wed, Mar 14, 2018 at 09:20:48PM +0530, Oza Pawandeep wrote:
> Current DPC driver acknowledges the interrupt in deferred work, which works
> since MSI are edge triggered.
> But when MSI is disabled (e.g. pci=nomsi boot option) port service
> driver falls back to PCI legacy INT interrupt.
> With current code we do not acknowledge the interrupt back in dpc_irq()
> and we get dpc interrupt storm.
> This patch acknowledges the interrupt in interrupt handler.
> Signed-off-by: Oza Pawandeep <>

Thanks, this looks good to me.

Reviewed-by: Keith Busch <keith

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