[PATCH] generic-time: add macro to simplify/hide mask constants

Add a CLOCKSOURCE_MASK macro to simplify initializing the mask for a struct
clocksource, and use it to replace literal mask constants in the various
clocksource drivers.

Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Acked-by: John Stultz <johnstul@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2 files changed, 3 insertions, 3 deletions

diff --git a/drivers/clocksource/acpi_pm.c b/drivers/clocksource/acpi_pm.c
index 066dc77433d5..7ad3be8c0f49 100644
--- a/drivers/clocksource/acpi_pm.c
+++ b/drivers/clocksource/acpi_pm.c
@@ -32,7 +32,7 @@
  */
 u32 pmtmr_ioport __read_mostly;
 
-#define ACPI_PM_MASK 0xFFFFFF /* limit it to 24 bits */
+#define ACPI_PM_MASK CLOCKSOURCE_MASK(24) /* limit it to 24 bits */
 
 static inline u32 read_pmtmr(void)
 {
diff --git a/drivers/clocksource/cyclone.c b/drivers/clocksource/cyclone.c
index 5906a0af825d..bf4d3d50d1c4 100644
--- a/drivers/clocksource/cyclone.c
+++ b/drivers/clocksource/cyclone.c
@@ -14,7 +14,7 @@
 #define CYCLONE_MPCS_OFFSET     0x51A8          /* offset to select register */
 #define CYCLONE_MPMC_OFFSET     0x51D0          /* offset to count register */
 #define CYCLONE_TIMER_FREQ      99780000        /* 100Mhz, but not really */
-#define CYCLONE_TIMER_MASK      0xFFFFFFFF      /* 32 bit mask */
+#define CYCLONE_TIMER_MASK      CLOCKSOURCE_MASK(32) /* 32 bit mask */
 
 int use_cyclone = 0;
 static void __iomem *cyclone_ptr;
@@ -28,7 +28,7 @@ static struct clocksource clocksource_cyclone = {
         .name           = "cyclone",
         .rating         = 250,
         .read           = read_cyclone,
-        .mask           = (cycle_t)CYCLONE_TIMER_MASK,
+        .mask           = CYCLONE_TIMER_MASK,
         .mult           = 10,
         .shift          = 0,
         .is_continuous  = 1,