From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [RFC PATCH 32/33] Add the Xen virtual network device driver.
Date: Tue, 18 Jul 2006 13:42:19 -0700 (PDT)
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From: Chris Wright <chrisw@sous-sol.org>
Date: Tue, 18 Jul 2006 00:00:32 -0700

> +#ifdef CONFIG_XEN_BALLOON
> +#include <xen/balloon.h>
> +#endif

Let's put the ifdefs in xen/balloon.h not in the files
including it.

> +#ifdef CONFIG_XEN_BALLOON
> +	/* Tell the ballon driver what is going on. */
> +	balloon_update_driver_allowance(i);
> +#endif

Similarly let's define empty do-nothing functions in
xen/balloon.h when the config option isn't set so we
don't need to crap up the C sources with these ifdefs.