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[Qemu-devel] [vhost-net kernel module]: file.fd = -1 does nothing ?

From: Catalin Vasile
Subject: [Qemu-devel] [vhost-net kernel module]: file.fd = -1 does nothing ?
Date: Wed, 11 Mar 2015 12:26:57 +0200

Why do vhost init/start functions put out with the work of using a vhost_call(VHOST_NET_SET_BACKEND) with file.fd = -1  in qemu vhost-net sources?
From what I see in vhost-net kernel module it just returns NULL from get_socket(), and that's it.
It doesn't set anything.

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