On Thu, May 14, 2020 at 8:14 AM Christoph Hellwig <hch@xxxxxx> wrote: > > Guys, can you please start formal thread on this? I have no > idea where this came from and what the rationale is. Btw, if the > pfn is crap in dma_direct_mmap then the dma_addr_t passed in is > crap, as it is derived from that. What is the caller, and how is > this triggered? FWIW the whole thread is available on lore: https://lore.kernel.org/lkml/20200514061417.GA8367@xxxxxx/T/#t
