iommu/omap: Use BIT(x) macros in omap-iopgtable.h

Switch to using the BIT(x) macros in omap-iopgtable.h where
possible. This eliminates the following checkpatch check
warning:
    "CHECK: Prefer using the BIT macro"

A couple of macros that used zero bit shifting are defined
directly to avoid the above warning on one of the macros.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>

1 files changed, 12 insertions, 10 deletions

diff --git a/drivers/iommu/omap-iopgtable.h b/drivers/iommu/omap-iopgtable.h
index bfde5405f514..01a315227bf0 100644
--- a/drivers/iommu/omap-iopgtable.h
+++ b/drivers/iommu/omap-iopgtable.h
@@ -13,25 +13,27 @@
 #ifndef _OMAP_IOPGTABLE_H
 #define _OMAP_IOPGTABLE_H
 
+#include <linux/bitops.h>
+
 /*
  * "L2 table" address mask and size definitions.
  */
 #define IOPGD_SHIFT             20
-#define IOPGD_SIZE              (1UL << IOPGD_SHIFT)
+#define IOPGD_SIZE              BIT(IOPGD_SHIFT)
 #define IOPGD_MASK              (~(IOPGD_SIZE - 1))
 
 /*
  * "section" address mask and size definitions.
  */
 #define IOSECTION_SHIFT         20
-#define IOSECTION_SIZE          (1UL << IOSECTION_SHIFT)
+#define IOSECTION_SIZE          BIT(IOSECTION_SHIFT)
 #define IOSECTION_MASK          (~(IOSECTION_SIZE - 1))
 
 /*
  * "supersection" address mask and size definitions.
  */
 #define IOSUPER_SHIFT           24
-#define IOSUPER_SIZE            (1UL << IOSUPER_SHIFT)
+#define IOSUPER_SIZE            BIT(IOSUPER_SHIFT)
 #define IOSUPER_MASK            (~(IOSUPER_SIZE - 1))
 
 #define PTRS_PER_IOPGD          (1UL << (32 - IOPGD_SHIFT))
@@ -41,14 +43,14 @@
  * "small page" address mask and size definitions.
  */
 #define IOPTE_SHIFT             12
-#define IOPTE_SIZE              (1UL << IOPTE_SHIFT)
+#define IOPTE_SIZE              BIT(IOPTE_SHIFT)
 #define IOPTE_MASK              (~(IOPTE_SIZE - 1))
 
 /*
  * "large page" address mask and size definitions.
  */
 #define IOLARGE_SHIFT           16
-#define IOLARGE_SIZE            (1UL << IOLARGE_SHIFT)
+#define IOLARGE_SIZE            BIT(IOLARGE_SHIFT)
 #define IOLARGE_MASK            (~(IOLARGE_SIZE - 1))
 
 #define PTRS_PER_IOPTE          (1UL << (IOPGD_SHIFT - IOPTE_SHIFT))
@@ -72,16 +74,16 @@ static inline phys_addr_t omap_iommu_translate(u32 d, u32 va, u32 mask)
 /*
  * some descriptor attributes.
  */
-#define IOPGD_TABLE             (1 << 0)
-#define IOPGD_SECTION           (2 << 0)
-#define IOPGD_SUPER             (1 << 18 | 2 << 0)
+#define IOPGD_TABLE             (1)
+#define IOPGD_SECTION           (2)
+#define IOPGD_SUPER             (BIT(18) | IOPGD_SECTION)
 
 #define iopgd_is_table(x)       (((x) & 3) == IOPGD_TABLE)
 #define iopgd_is_section(x)     (((x) & (1 << 18 | 3)) == IOPGD_SECTION)
 #define iopgd_is_super(x)       (((x) & (1 << 18 | 3)) == IOPGD_SUPER)
 
-#define IOPTE_SMALL             (2 << 0)
-#define IOPTE_LARGE             (1 << 0)
+#define IOPTE_SMALL             (2)
+#define IOPTE_LARGE             (1)
 
 #define iopte_is_small(x)       (((x) & 2) == IOPTE_SMALL)
 #define iopte_is_large(x)       (((x) & 3) == IOPTE_LARGE)