Re: [RFC PATCH v2 1/3] USB: use genalloc for USB HCs with local memory

Christoph Hellwig
2019-05-15T12:43:14Z

On Wed, May 15, 2019 at 09:57:12AM +0000, Laurentiu Tudor wrote:
> Glad I could help. On the remoteproc_virtio.c case, I had a cursory look
> and found out that the dma_declare_coherent_memory() usage was
> introduced quite recently, by this patch:
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=086d08725d34c6b3333db710344ae9c4fdafb2d5

Yes. I took a look at it to, and while it isn't exactly a clean
usage of the API it at least declares system memory and not a resource.
So it doesn't really affect our plan.