time: ntp: clean up second_overflow()

Impact: cleanup, no functionality changed

The 'time_adj' local variable is named in a very confusing
way because it almost shadows the 'time_adjust' global
variable - which is used in this same function.

Rename it to 'delta' - to make them stand apart more clearly.

kernel/time/ntp.o:

   text	   data	    bss	    dec	    hex	filename
   2545	    114	    144	   2803	    af3	ntp.o.before
   2545	    114	    144	   2803	    af3	ntp.o.after

md5:
   1bf0b3be564512279ba7cee299d1d2be  ntp.o.before.asm
   1bf0b3be564512279ba7cee299d1d2be  ntp.o.after.asm

Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 6 insertions, 5 deletions

diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c
index a3fe7ef2d83b..c74eb7d9d854 100644
--- a/kernel/time/ntp.c
+++ b/kernel/time/ntp.c
@@ -236,7 +236,7 @@ static enum hrtimer_restart ntp_leap_second(struct hrtimer *timer)
  */
 void second_overflow(void)
 {
-        s64 time_adj;
+        s64 delta;
 
         /* Bump the maxerror field */
         time_maxerror += MAXFREQ / NSEC_PER_USEC;
@@ -249,10 +249,11 @@ void second_overflow(void)
          * Compute the phase adjustment for the next second. The offset is
          * reduced by a fixed factor times the time constant.
          */
-        tick_length     = tick_length_base;
-        time_adj        = shift_right(time_offset, SHIFT_PLL + time_constant);
-        time_offset     -= time_adj;
-        tick_length     += time_adj;
+        tick_length      = tick_length_base;
+
+        delta            = shift_right(time_offset, SHIFT_PLL + time_constant);
+        time_offset     -= delta;
+        tick_length     += delta;
 
         if (!time_adjust)
                 return;