From 3c1b27d5043086a485f8526353ae9fe37bfa1065 Mon Sep 17 00:00:00 2001
From: Rusty Russell <rusty@rustcorp.com.au>
Date: Wed, 23 Sep 2009 22:26:31 -0600
Subject: virtio: make add_buf return capacity remaining

This API change means that virtio_net can tell how much capacity
remains for buffers.  It's necessarily fuzzy, since
VIRTIO_RING_F_INDIRECT_DESC means we can fit any number of descriptors
in one, *if* we can kmalloc.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Dinesh Subhraveti <dineshs@us.ibm.com>
---
 net/9p/trans_virtio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'net')

diff --git a/net/9p/trans_virtio.c b/net/9p/trans_virtio.c
index 9bf0b73..53c139d 100644
--- a/net/9p/trans_virtio.c
+++ b/net/9p/trans_virtio.c
@@ -200,7 +200,7 @@ p9_virtio_request(struct p9_client *client, struct p9_req_t *req)
 
 	req->status = REQ_STATUS_SENT;
 
-	if (chan->vq->vq_ops->add_buf(chan->vq, chan->sg, out, in, req->tc)) {
+	if (chan->vq->vq_ops->add_buf(chan->vq, chan->sg, out, in, req->tc) < 0) {
 		P9_DPRINTK(P9_DEBUG_TRANS,
 			"9p debug: virtio rpc add_buf returned failure");
 		return -EIO;
-- 
cgit v1.1


From 3a20210dc26bbfff3bbb48bb22d2846240b71d8f Mon Sep 17 00:00:00 2001
From: Fernando Luis Vazquez Cao <fernando@oss.ntt.co.jp>
Date: Fri, 31 Jul 2009 12:09:05 +0900
Subject: virtio: get rid of redundant VIRTIO_ID_9P definition

VIRTIO_ID_9P is already defined in include/linux/virtio_9p.h
so use that definition instead.

Signed-off-by: Fernando Luis Vazquez Cao <fernando@oss.ntt.co.jp>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Eric Van Hensbergen <ericvh@gmail.com>
---
 net/9p/trans_virtio.c | 2 --
 1 file changed, 2 deletions(-)

(limited to 'net')

diff --git a/net/9p/trans_virtio.c b/net/9p/trans_virtio.c
index 53c139d..ea1e3da 100644
--- a/net/9p/trans_virtio.c
+++ b/net/9p/trans_virtio.c
@@ -334,8 +334,6 @@ static void p9_virtio_remove(struct virtio_device *vdev)
 	}
 }
 
-#define VIRTIO_ID_9P 9
-
 static struct virtio_device_id id_table[] = {
 	{ VIRTIO_ID_9P, VIRTIO_DEV_ANY_ID },
 	{ 0 },
-- 
cgit v1.1


From 3ca4f5ca73057a617f9444a91022d7127041970a Mon Sep 17 00:00:00 2001
From: Fernando Luis Vazquez Cao <fernando@oss.ntt.co.jp>
Date: Fri, 31 Jul 2009 15:25:56 +0900
Subject: virtio: add virtio IDs file

Virtio IDs are spread all over the tree which makes assigning new IDs
bothersome. Putting them together should make the process less error-prone.

Signed-off-by: Fernando Luis Vazquez Cao <fernando@oss.ntt.co.jp>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
 net/9p/trans_virtio.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'net')

diff --git a/net/9p/trans_virtio.c b/net/9p/trans_virtio.c
index ea1e3da..b2e07f0 100644
--- a/net/9p/trans_virtio.c
+++ b/net/9p/trans_virtio.c
@@ -43,6 +43,7 @@
 #include <net/9p/transport.h>
 #include <linux/scatterlist.h>
 #include <linux/virtio.h>
+#include <linux/virtio_ids.h>
 #include <linux/virtio_9p.h>
 
 #define VIRTQUEUE_NUM	128
-- 
cgit v1.1