[PARISC] include <linux/prefetch.h> in drivers/parisc/iommu-helpers.h

drivers/parisc/iommu-helpers.h:62: error: implicit declaration of function 'prefetchw'
make[3]: *** [drivers/parisc/sba_iommu.o] Error 1

drivers/parisc/iommu-helpers.h needs to #include <linux/prefetch.h>
where prefetchw is declared.

Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

authored by Cong Wang and committed by James Bottomley 650275db 97a29d59

Changed files
+2
drivers
+2
drivers/parisc/iommu-helpers.h
··· 1 + #include <linux/prefetch.h> 2 + 1 3 /** 2 4 * iommu_fill_pdir - Insert coalesced scatter/gather chunks into the I/O Pdir. 3 5 * @ioc: The I/O Controller.