xen: drivers/xen/balloon.c: make a function static
Make the needlessly global balloon_set_new_target() static. Signed-off-by: NAdrian Bunk <bunk@kernel.org> Acked-by: NChris Wright <chrisw@sous-sol.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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