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>

diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c
index a3fe7ef2d83b55b24c9deb3b48384b9a7c5c41bf..c74eb7d9d854269a3a43e308e3aea3c18e3ffb87 100644 (file)
--- 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;