time: Explicitly use u32 instead of int for shift values

Ingo noted that using a u32 instead of int for shift values
would be better to make sure the compiler doesn't unnecessarily
use complex signed arithmetic.

Signed-off-by: John Stultz <john.stultz@linaro.org>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Prarit Bhargava <prarit@redhat.com>
Link: http://lkml.kernel.org/r/1342156917-25092-4-git-send-email-john.stultz@linaro.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index c2f12aa87fce59549f9553547f42f37cc5e83f03..4fd83df0b14dd57d5f55d14c7bf254244443e7d8 100644 (file)
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -28,7 +28,7 @@ struct timekeeper {
        /* NTP adjusted clock multiplier */
        u32                     mult;
        /* The shift value of the current clocksource. */
-       int                     shift;
+       u32                     shift;
        /* Number of clock cycles in one NTP interval. */
        cycle_t                 cycle_interval;
        /* Number of clock shifted nano seconds in one NTP interval. */
@@ -45,7 +45,7 @@ struct timekeeper {
        s64                     ntp_error;
        /* Shift conversion between clock shifted nano seconds and
         * ntp shifted nano seconds. */
-       int                     ntp_error_shift;
+       u32                     ntp_error_shift;
 
        /* The current time */
        struct timespec         xtime;
@@ -960,7 +960,7 @@ static void timekeeping_adjust(s64 offset)
  *
  * Returns the unconsumed cycles.
  */
-static cycle_t logarithmic_accumulation(cycle_t offset, int shift)
+static cycle_t logarithmic_accumulation(cycle_t offset, u32 shift)
 {
        u64 nsecps = (u64)NSEC_PER_SEC << timekeeper.shift;
        u64 raw_nsecs;