From 1c88c71564bb6e6554f8aad16c7be1bf2a57c89b Mon Sep 17 00:00:00 2001
From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Date: Wed, 1 Jun 2011 12:35:13 +0530
Subject: [PATCH] virtio-9p: Don't link to 9p if virtio is not enabled

If virtio is not enabled then we should not pull in
virtfs files

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Venkateswararao Jujjuri (JV) <jvrao@linux.vnet.ibm.com>
---
 Makefile.objs            |  8 +++++---
 fsdev/qemu-fsdev-dummy.c | 20 ++++++++++++++++++++
 2 files changed, 25 insertions(+), 3 deletions(-)
 create mode 100644 fsdev/qemu-fsdev-dummy.c

diff --git a/Makefile.objs b/Makefile.objs
index 90838f6a0d..bdcc845941 100644
--- a/Makefile.objs
+++ b/Makefile.objs
@@ -49,8 +49,10 @@ ifeq ($(CONFIG_VIRTIO)$(CONFIG_VIRTFS),yy)
 # Lots of the fsdev/9pcode is pulled in by vl.c via qemu_fsdev_add.
 # only pull in the actual virtio-9p device if we also enabled virtio.
 CONFIG_REALLY_VIRTFS=y
+fsdev-nested-y = qemu-fsdev.o
+else
+fsdev-nested-y = qemu-fsdev-dummy.o
 endif
-fsdev-nested-$(CONFIG_VIRTFS) = qemu-fsdev.o
 fsdev-obj-$(CONFIG_VIRTFS) += $(addprefix fsdev/, $(fsdev-nested-y))
 
 ######################################################################
@@ -285,11 +287,11 @@ sound-obj-$(CONFIG_HDA) += intel-hda.o hda-audio.o
 adlib.o fmopl.o: QEMU_CFLAGS += -DBUILD_Y8950=0
 hw-obj-$(CONFIG_SOUND) += $(sound-obj-y)
 
-9pfs-nested-$(CONFIG_REALLY_VIRTFS) = virtio-9p-debug.o
+9pfs-nested-$(CONFIG_VIRTFS) = virtio-9p-debug.o
 9pfs-nested-$(CONFIG_VIRTFS) +=  virtio-9p-local.o virtio-9p-xattr.o
 9pfs-nested-$(CONFIG_VIRTFS) +=   virtio-9p-xattr-user.o virtio-9p-posix-acl.o
 
-hw-obj-$(CONFIG_VIRTFS) += $(addprefix 9pfs/, $(9pfs-nested-y))
+hw-obj-$(CONFIG_REALLY_VIRTFS) += $(addprefix 9pfs/, $(9pfs-nested-y))
 $(addprefix 9pfs/, $(9pfs-nested-y)): CFLAGS +=  -I$(SRC_PATH)/hw/
 
 
diff --git a/fsdev/qemu-fsdev-dummy.c b/fsdev/qemu-fsdev-dummy.c
new file mode 100644
index 0000000000..619e163a46
--- /dev/null
+++ b/fsdev/qemu-fsdev-dummy.c
@@ -0,0 +1,20 @@
+/*
+ * Virtio 9p
+ *
+ * Copyright IBM, Corp. 2010
+ *
+ * Authors:
+ *  Gautham R Shenoy <ego@in.ibm.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2.  See
+ * the COPYING file in the top-level directory.
+ *
+ */
+#include <stdio.h>
+#include <string.h>
+#include "qemu-fsdev.h"
+
+int qemu_fsdev_add(QemuOpts *opts)
+{
+    return 0;
+}
-- 
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