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    Subject[PATCH net-next v3 06/12] vsock/virtio: support MSG_ZEROCOPY for transport
    Date
    Add 'msgzerocopy_allow()' callback for virtio transport.

    Signed-off-by: Arseniy Krasnov <avkrasnov@salutedevices.com>
    Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
    ---
    net/vmw_vsock/virtio_transport.c | 7 +++++++
    1 file changed, 7 insertions(+)

    diff --git a/net/vmw_vsock/virtio_transport.c b/net/vmw_vsock/virtio_transport.c
    index 09ba3128e759..d324ae13e2f5 100644
    --- a/net/vmw_vsock/virtio_transport.c
    +++ b/net/vmw_vsock/virtio_transport.c
    @@ -486,6 +486,11 @@ static bool virtio_transport_can_msgzerocopy(int bufs_num)
    return res;
    }

    +static bool virtio_transport_msgzerocopy_allow(void)
    +{
    + return true;
    +}
    +
    static bool virtio_transport_seqpacket_allow(u32 remote_cid);

    static struct virtio_transport virtio_transport = {
    @@ -519,6 +524,8 @@ static struct virtio_transport virtio_transport = {
    .seqpacket_allow = virtio_transport_seqpacket_allow,
    .seqpacket_has_data = virtio_transport_seqpacket_has_data,

    + .msgzerocopy_allow = virtio_transport_msgzerocopy_allow,
    +
    .notify_poll_in = virtio_transport_notify_poll_in,
    .notify_poll_out = virtio_transport_notify_poll_out,
    .notify_recv_init = virtio_transport_notify_recv_init,
    --
    2.25.1
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