On Fri, Oct 28, 2022 at 11:37:52AM +0200, Greg Kroah-Hartman wrote: > And here's actually the patch... How is this supposed to work? noderef means any dereference of it will now make sparse complain. And the whole point of the DMA is to get data into and out of the system, so except for corner cases like direct DMA to userspace (which won't use kmalloc) we absolutely do want to derference it to generate or consume the information.
