Patchwork [238/270] vhost: fix mergeable bufs on BE hosts

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Submitter Herton Ronaldo Krzesinski
Date Nov. 26, 2012, 4:58 p.m.
Message ID <1353949160-26803-239-git-send-email-herton.krzesinski@canonical.com>
Download mbox | patch
Permalink /patch/201969/
State New
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Comments

Herton Ronaldo Krzesinski - Nov. 26, 2012, 4:58 p.m.
3.5.7u1 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: "Michael S. Tsirkin" <mst@redhat.com>

commit 910a578f7e9400a78a3b13aba0b4d2df16a2cb05 upstream.

We copy head count to a 16 bit field, this works by chance on LE but on
BE guest gets 0. Fix it up.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Alexander Graf <agraf@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Herton Ronaldo Krzesinski <herton.krzesinski@canonical.com>
---
 drivers/vhost/net.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Patch

diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
index f82a739..3c4dcc3d9 100644
--- a/drivers/vhost/net.c
+++ b/drivers/vhost/net.c
@@ -379,7 +379,8 @@  static void handle_rx(struct vhost_net *net)
 		.hdr.gso_type = VIRTIO_NET_HDR_GSO_NONE
 	};
 	size_t total_len = 0;
-	int err, headcount, mergeable;
+	int err, mergeable;
+	s16 headcount;
 	size_t vhost_hlen, sock_hlen;
 	size_t vhost_len, sock_len;
 	/* TODO: check that we are running from vhost_worker? */