On Thu, Jul 15, 2021 at 03:16:08PM +0100, Robin Murphy wrote: > On 2021-07-15 15:07, Christoph Hellwig wrote: > > On Thu, Jul 15, 2021 at 02:04:24PM +0100, Robin Murphy wrote: > > > If people are going to insist on calling iommu_iova_to_phys() > > > pointlessly and expecting it to work, > > > > Maybe we need to fix that? > > Feel free to try, but we didn't have much luck pushing back on it > previously, so playing whack-a-mole against netdev now is a game I'm > personally happy to stay away from ;)
One thing I've done with symbols I want people to not use it to unexport them. But what about vfio? While we're talking about iommu_iova_to_phys: __iommu_dma_unmap_swiotlb calls it unconditionally, despite only needed ing the physical address. Can we optimize that somehow by splitting out the bounce buffering case out? _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
