linux-kernel - linux-next: build failure after merge of the virtio tree

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Message-Id: <20121210133725.cb4a76545691b099c73c40ea@canb.auug.org.au>
Date:	Mon, 10 Dec 2012 13:37:25 +1100
From:	Stephen Rothwell <sfr@...b.auug.org.au>
To:	Rusty Russell <rusty@...tcorp.com.au>
Cc:	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	Jason Wang <jasowang@...hat.com>,
	David Miller <davem@...emloft.net>, <netdev@...r.kernel.org>
Subject: linux-next: build failure after merge of the virtio tree

Hi Rusty,

After merging the virtio tree, today's linux-next build (x86_64
allmodconfig) failed like this:

drivers/net/virtio_net.c: In function 'vq2txq':
drivers/net/virtio_net.c:150:2: error: implicit declaration of function 'virtqueue_get_queue_index' [-Werror=implicit-function-declaration]

Caused by commit 986a4f4d452d ("virtio_net: multiqueue support") from the
net-next tree interacting with commit 105e892960e1 ("virtio: move
queue_index and num_free fields into core struct virtqueue") from the
virtio tree.

I applied the patch below and can carry it as necessary.

From: Stephen Rothwell <sfr@...b.auug.org.au>
Date: Mon, 10 Dec 2012 13:33:57 +1100
Subject: [PATCH] virtnet: for up for virtqueue_get_queue_index removal

Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>
---
 drivers/net/virtio_net.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 33d6f6f..8afe32d 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -147,7 +147,7 @@ struct padded_vnet_hdr {
  */
 static int vq2txq(struct virtqueue *vq)
 {
-	return (virtqueue_get_queue_index(vq) - 1) / 2;
+	return (vq->index - 1) / 2;
 }
 
 static int txq2vq(int txq)
@@ -157,7 +157,7 @@ static int txq2vq(int txq)
 
 static int vq2rxq(struct virtqueue *vq)
 {
-	return virtqueue_get_queue_index(vq) / 2;
+	return vq->index / 2;
 }
 
 static int rxq2vq(int rxq)
-- 
1.7.10.280.gaa39

-- 
Cheers,
Stephen Rothwell                    sfr@...b.auug.org.au

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