Commit 1276ece3 authored Oct 14, 2015 by Eric Auger Committed by Alex Williamson Oct 27, 2015

VFIO: platform: clear IRQ_NOAUTOEN when de-assigning the IRQ



The vfio platform driver currently sets the IRQ_NOAUTOEN before
doing the request_irq to properly handle the user masking. However
it does not clear it when de-assigning the IRQ. This brings issues
when loading the native driver again which may not explicitly enable
the IRQ. This problem was observed with xgbe driver.

Signed-off-by: Eric Auger <eric.auger@linaro.org>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>

parent 4e1a6355

drivers/vfio/platform/vfio_platform_irq.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -185,6 +185,7 @@ static int vfio_set_trigger(struct vfio_platform_device *vdev, int index,
		int ret;

		if (irq->trigger) {
		irq_clear_status_flags(irq->hwirq, IRQ_NOAUTOEN);
		free_irq(irq->hwirq, irq);
		kfree(irq->name);
		eventfd_ctx_put(irq->trigger);