On Mon, Apr 21, 2025 at 1:40 PM T.J. Mercier <tjmerc...@google.com> wrote: > > > > new file mode 100644 > > > index 000000000000..b4b8be1d6aa4 > > > --- /dev/null > > > +++ b/kernel/bpf/dmabuf_iter.c > > > > Maybe we should add this file to drivers/dma-buf. I would like to > > hear other folks thoughts on this. > > This is fine with me, and would save us the extra > CONFIG_DMA_SHARED_BUFFER check that's currently needed in > kernel/bpf/Makefile but would require checking CONFIG_BPF instead. > Sumit / Christian any objections to moving the dmabuf bpf iterator > implementation into drivers/dma-buf?
The driver directory would need to 'depends on BPF_SYSCALL'. Are you sure you want this? imo kernel/bpf/ is fine for this. You also probably want .feature = BPF_ITER_RESCHED in bpf_dmabuf_reg_info. Also have you considered open coded iterator for dmabufs? Would it help with the interface to user space?
