This patch contains the following cleanups:
- make the following needlessly global code static:
  - dma_alloc_pages()
Signed-off-by: NAdrian Bunk <bunk@kernel.org>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>