linux-kernel - [PATCH] xen/9pfs: select CONFIG_XEN_XENBUS

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Date:   Wed, 19 Apr 2017 19:06:39 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     Juergen Gross <jgross@...e.com>
Cc:     Stefano Stabellini <stefano@...reto.com>,
        boris.ostrovsky@...cle.com, groug@...d.org,
        xen-devel@...ts.xenproject.org, Arnd Bergmann <arnd@...db.de>,
        Eric Van Hensbergen <ericvh@...il.com>,
        Ron Minnich <rminnich@...dia.gov>,
        Latchesar Ionkov <lucho@...kov.net>,
        "David S. Miller" <davem@...emloft.net>,
        Stefano Stabellini <sstabellini@...nel.org>,
        v9fs-developer@...ts.sourceforge.net, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] xen/9pfs: select CONFIG_XEN_XENBUS_FRONTEND

All Xen frontends need to select this symbol to avoid a link error:

net/built-in.o: In function `p9_trans_xen_init':
:(.text+0x149e9c): undefined reference to `__xenbus_register_frontend'

Fixes: d4b40a02f837 ("xen/9pfs: build 9pfs Xen transport driver")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 net/9p/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/9p/Kconfig b/net/9p/Kconfig
index 3f286f1bd1d3..e6014e0e51f7 100644
--- a/net/9p/Kconfig
+++ b/net/9p/Kconfig
@@ -24,6 +24,7 @@ config NET_9P_VIRTIO
 
 config NET_9P_XEN
 	depends on XEN
+	select XEN_XENBUS_FRONTEND
 	tristate "9P Xen Transport"
 	help
 	  This builds support for a transport for 9pfs between
-- 
2.9.0