On 14/08/2020 14:07, John Garry wrote: > > BTW, as for the DMA/sg scatterlist code, it so happens in this case that > we try the dma alloc for size=0 in nvme_alloc_queue() - I know an > allocation for size=0 makes no sense, but couldn't we bit a bit more > robust? it's giving ZERO_SIZE_PTR, which we deference, so ignore me...