On Tue, Dec 01, 2020 at 09:51:43AM -0800, Minchan Kim wrote: > From: Hyesoo Yu <hyesoo.yu@xxxxxxxxxxx> > > The heaps could be added as module, so some functions should > be exported to register dma-heaps. And dma-heap of module can use > cma area to allocate and free. However the function related cma > is not exported now. Let's export them for next patches. > > Signed-off-by: Hyesoo Yu <hyesoo.yu@xxxxxxxxxxx> > Signed-off-by: Minchan Kim <minchan@xxxxxxxxxx> NAK. I really don't think any module has business gaining that kind of low-level access to the various symbols. I think in general your heap can just be built-in and we should be fine.