Messages in this thread | | | Date | Wed, 8 Sep 2021 07:26:03 +0100 | From | Christoph Hellwig <> | Subject | Re: [RFC PATCH 1/3] RDMA/umem: Change for rdma devices has not dma device |
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On Wed, Sep 08, 2021 at 03:16:09PM +0900, Shunsuke Mie wrote: > To share memory space using dma-buf, a API of the dma-buf requires dma > device, but devices such as rxe do not have a dma device. For those case, > change to specify a device of struct ib instead of the dma device.
So if dma-buf doesn't actually need a device to dma map why do we ever pass the dma_device here? Something does not add up.
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