Re: [PATCH 1/1] iommu/vt-d: Fix lockdep splat in iommu_flush_dev_iotlb()

2020-10-01 Thread Joerg Roedel
On Sun, Sep 27, 2020 at 02:24:28PM +0800, Lu Baolu wrote: > drivers/iommu/intel/iommu.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) Applied for v5.9, thanks.

[PATCH 1/1] iommu/vt-d: Fix lockdep splat in iommu_flush_dev_iotlb()

2020-09-26 Thread Lu Baolu
Lock(&iommu->lock) without disabling irq causes lockdep warnings. [ 12.703950] [ 12.703962] WARNING: possible irq lock inversion dependency detected [ 12.703975] 5.9.0-rc6+ #659 Not tainted [ 12.703983] --