On Thu, Oct 21, 2021 at 6:49 PM Shuosheng Huang <huangshuosheng@xxxxxxxxxxxxxxxxx> wrote: > > Some built-in modules will failed to use dma-buf heap to allocate > memory if the heap drivers are too late to be initialized. > To fix this issue, move initialization of dma-buf heap drivers in > subsys_initcall() which is more earlier to be called. Hey! Thanks so much for sending this out! I appreciate it! So the change looks pretty straightforward to me, however, the rationale for it is where we hit problems. With the upstream kernel, there are not yet any modules that directly allocate from dmabuf heaps. So in the context of the upstream kernel, the reasoning doesn't make much sense. Now, I know folks have their own drivers that want to allocate from dmabuf heaps, but those haven't been submitted upstream yet. So maybe can you submit those patches that need this along with this change so it would make sense as part of a patch series? It would be trivial to justify including this patch then. thanks -john
