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authorEric Auger <eric.auger@linaro.org>2015-10-14 18:32:56 +0300
committerAlex Williamson <alex.williamson@redhat.com>2015-10-28 00:02:53 +0300
commit1276ece32c5d18790e8bcff89e692fd3c1790bab (patch)
treed7151d776c28879bf2ddeabdfea4fe1ed8371270 /drivers/vfio/platform
parent4e1a635552d3df7bb743de8c2be156293c53839e (diff)
downloadlinux-1276ece32c5d18790e8bcff89e692fd3c1790bab.tar.xz
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>
Diffstat (limited to 'drivers/vfio/platform')
-rw-r--r--drivers/vfio/platform/vfio_platform_irq.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/vfio/platform/vfio_platform_irq.c b/drivers/vfio/platform/vfio_platform_irq.c
index 88bba57b30a8..46d4750f43a8 100644
--- a/drivers/vfio/platform/vfio_platform_irq.c
+++ b/drivers/vfio/platform/vfio_platform_irq.c
@@ -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);