On Mon, Dec 09, 2019 at 07:47:25PM +, Robin Murphy wrote:
> Since commit ece6e6f0218b ("iommu/dma-iommu: Split iommu_dma_map_msi_msg()
> in two parts"), iommu_dma_prepare_msi() should no longer have to worry
> about preempting itself, nor being called in atomic context at all. Thus
> we can dow
Since commit ece6e6f0218b ("iommu/dma-iommu: Split iommu_dma_map_msi_msg()
in two parts"), iommu_dma_prepare_msi() should no longer have to worry
about preempting itself, nor being called in atomic context at all. Thus
we can downgrade the IRQ-safe locking to a simple mutex to avoid angering
the ne
