On Sat, Jun 03, 2023 at 11:49:34PM +0300, Arseniy Krasnov wrote:
Add 'msgzerocopy_allow()' callback for loopback transport.

Signed-off-by: Arseniy Krasnov <[email protected]>
---
net/vmw_vsock/vsock_loopback.c | 8 ++++++++
1 file changed, 8 insertions(+)

diff --git a/net/vmw_vsock/vsock_loopback.c b/net/vmw_vsock/vsock_loopback.c
index 5c6360df1f31..a2e4aeda2d92 100644
--- a/net/vmw_vsock/vsock_loopback.c
+++ b/net/vmw_vsock/vsock_loopback.c
@@ -47,6 +47,7 @@ static int vsock_loopback_cancel_pkt(struct vsock_sock *vsk)
}

static bool vsock_loopback_seqpacket_allow(u32 remote_cid);
+static bool vsock_loopback_msgzerocopy_allow(void);

I don't know why we did this for `vsock_loopback_seqpacket_allow`, but
can we just put the implementation here?


static struct virtio_transport loopback_transport = {
        .transport = {
@@ -92,11 +93,18 @@ static struct virtio_transport loopback_transport = {
                .notify_buffer_size       = virtio_transport_notify_buffer_size,

                .read_skb = virtio_transport_read_skb,
+
+               .msgzerocopy_allow        = vsock_loopback_msgzerocopy_allow,

Ditto the moving.

        },

        .send_pkt = vsock_loopback_send_pkt,
};

+static bool vsock_loopback_msgzerocopy_allow(void)
+{
+       return true;
+}
+
static bool vsock_loopback_seqpacket_allow(u32 remote_cid)
{
        return true;
--
2.25.1


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