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iommu/omap: Protect omap-iopgtable.h against double inclusion

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Protect the omap-pgtable.h header against double inclusion in
source code by using the standard include guard mechanism.

Signed-off-by: Suman Anna <s-anna@ti.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Suman Anna 2015-07-20 17:33:26 -05:00 committed by Joerg Roedel
parent 69c2c19632
commit ad8e29a080
1 changed files with 5 additions and 0 deletions
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5
drivers/iommu/omap-iopgtable.h
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@ -10,6 +10,9 @@
* published by the Free Software Foundation.
*/
#ifndef _OMAP_IOPGTABLE_H
#define _OMAP_IOPGTABLE_H
/*
* "L2 table" address mask and size definitions.
*/
@ -93,3 +96,5 @@ static inline phys_addr_t omap_iommu_translate(u32 d, u32 va, u32 mask)
/* to find an entry in the second-level page table. */
#define iopte_index(da) (((da) >> IOPTE_SHIFT) & (PTRS_PER_IOPTE - 1))
#define iopte_offset(iopgd, da) (iopgd_page_vaddr(iopgd) + iopte_index(da))
#endif /* _OMAP_IOPGTABLE_H */