From: Rusty Russell <rusty@rustcorp.com.au>
Date: Tue, 16 Oct 2012 13:26:14 +0000 (+1030)
Subject: virtio_net: don't rely on virtqueue_add_buf() returning capacity.
X-Git-Tag: v3.8-rc1~28^2~16
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9ed4cb073438e2154778f0d693d966359afd6549;p=pandora-kernel.git

virtio_net: don't rely on virtqueue_add_buf() returning capacity.

Now we can easily use vq->num_free to determine if there are descriptors
left in the queue, we're about to change virtqueue_add_buf() to return 0
on success.  The virtio_net driver is the only one which actually uses
the return value, so change that.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
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