[PATCH v2 2/2] treewide: Add the __GFP_PACKED flag to several non-DMA kmalloc() allocations

[Christoph Hellwig]

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.