Patchwork [3.5.yuz,extended,stable] Patch "vhost: fix mergeable bufs on BE hosts" has been added to staging queue

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Submitter Herton Ronaldo Krzesinski
Date Nov. 22, 2012, 4:49 a.m.
Message ID <1353559760-3050-1-git-send-email-herton.krzesinski@canonical.com>
Download mbox | patch
Permalink /patch/200993/
State New
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Comments

Herton Ronaldo Krzesinski - Nov. 22, 2012, 4:49 a.m.
This is a note to let you know that I have just added a patch titled

    vhost: fix mergeable bufs on BE hosts

to the linux-3.5.y-queue branch of the 3.5.yuz extended stable tree 
which can be found at:

 http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.5.y-queue

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.5.yuz tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Herton

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From 4344317c81c2f4de4afad535ddf6c214fdfd47b9 Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Wed, 24 Oct 2012 20:37:51 +0200
Subject: [PATCH] vhost: fix mergeable bufs on BE hosts

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(-)

--
1.7.9.5

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? */