On Thu, Aug 07, 2025 at 10:45:33AM -0300, Jason Gunthorpe wrote: > On Mon, Aug 04, 2025 at 03:42:50PM +0300, Leon Romanovsky wrote: > > From: Leon Romanovsky <leonro@xxxxxxxxxx> > > > > Block layer maps MMIO memory through dma_map_phys() interface > > with help of DMA_ATTR_MMIO attribute. There is a need to unmap > > that memory with the appropriate unmap function. > > Be specific, AFIACT the issue is that on dma_ops platforms the map > will call ops->map_resource for ATTR_MMIO so we must have the unmap > call ops->unmap_resournce > > Maybe these patches should be swapped then, as adding ATTR_MMIO seems > like it created this issue? The best variant will be to squash previous patch "block-dma: properly take MMIO path", but I don't want to mix them as they for different kernel areas. Thanks > > Jason >
