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

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Date:   Wed, 19 Apr 2017 10:21:17 -0700 (PDT)
From:   Stefano Stabellini <sstabellini@...nel.org>
To:     Arnd Bergmann <arnd@...db.de>
cc:     Juergen Gross <jgross@...e.com>,
        Stefano Stabellini <stefano@...reto.com>,
        boris.ostrovsky@...cle.com, groug@...d.org,
        xen-devel@...ts.xenproject.org,
        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: Re: [PATCH] xen/9pfs: select CONFIG_XEN_XENBUS_FRONTEND

On Wed, 19 Apr 2017, Arnd Bergmann wrote:
> 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>

Thank you for the fix!

Reviewed-by: Stefano Stabellini <sstabellini@...nel.org>


> ---
>  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
>