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Message-ID: <3b0d612c-e33b-48aa-a861-fbb042572fc9@kernel.org> Date: Mon, 6 Nov 2023 16:44:44 -0700 From: David Ahern <dsahern@...nel.org> To: Mina Almasry <almasrymina@...gle.com>, netdev@...r.kernel.org, linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org, linux-kselftest@...r.kernel.org, linux-media@...r.kernel.org, dri-devel@...ts.freedesktop.org, linaro-mm-sig@...ts.linaro.org Cc: "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, Jesper Dangaard Brouer <hawk@...nel.org>, Ilias Apalodimas <ilias.apalodimas@...aro.org>, Arnd Bergmann <arnd@...db.de>, Willem de Bruijn <willemdebruijn.kernel@...il.com>, Shuah Khan <shuah@...nel.org>, Sumit Semwal <sumit.semwal@...aro.org>, Christian König <christian.koenig@....com>, Shakeel Butt <shakeelb@...gle.com>, Jeroen de Borst <jeroendb@...gle.com>, Praveen Kaligineedi <pkaligineedi@...gle.com>, Willem de Bruijn <willemb@...gle.com>, Kaiyuan Zhang <kaiyuanz@...gle.com> Subject: Re: [RFC PATCH v3 05/12] netdev: netdevice devmem allocator On 11/5/23 7:44 PM, Mina Almasry wrote: > diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h > index eeeda849115c..1c351c138a5b 100644 > --- a/include/linux/netdevice.h > +++ b/include/linux/netdevice.h > @@ -843,6 +843,9 @@ struct netdev_dmabuf_binding { > }; > > #ifdef CONFIG_DMA_SHARED_BUFFER > +struct page_pool_iov * > +netdev_alloc_devmem(struct netdev_dmabuf_binding *binding); > +void netdev_free_devmem(struct page_pool_iov *ppiov); netdev_{alloc,free}_dmabuf? I say that because a dmabuf can be host memory, at least I am not aware of a restriction that a dmabuf is device memory.
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