]> pilppa.com Git - linux-2.6-omap-h63xx.git/commitdiff
sched: fix gcc warnings
authorIngo Molnar <mingo@elte.hu>
Sun, 30 Dec 2007 16:24:35 +0000 (17:24 +0100)
committerIngo Molnar <mingo@elte.hu>
Sun, 30 Dec 2007 16:24:35 +0000 (17:24 +0100)
Meelis Roos reported these warnings on sparc64:

  CC      kernel/sched.o
  In file included from kernel/sched.c:879:
  kernel/sched_debug.c: In function 'nsec_high':
  kernel/sched_debug.c:38: warning: comparison of distinct pointer types lacks a cast

the debug check in do_div() is over-eager here, because the long long
is always positive in these places. Mark this by casting them to
unsigned long long.

no change in code output:

   text    data     bss     dec     hex filename
  51471    6582     376   58429    e43d sched.o.before
  51471    6582     376   58429    e43d sched.o.after

  md5:
   7f7729c111f185bf3ccea4d542abc049  sched.o.before.asm
   7f7729c111f185bf3ccea4d542abc049  sched.o.after.asm

Signed-off-by: Ingo Molnar <mingo@elte.hu>
kernel/sched_debug.c

index d30467b47ddd0cd681f6da0afbe9c96c8b52df93..80fbbfc042909fb73ab5d1c8d96f3e114baf142f 100644 (file)
@@ -31,9 +31,9 @@
 /*
  * Ease the printing of nsec fields:
  */
-static long long nsec_high(long long nsec)
+static long long nsec_high(unsigned long long nsec)
 {
-       if (nsec < 0) {
+       if ((long long)nsec < 0) {
                nsec = -nsec;
                do_div(nsec, 1000000);
                return -nsec;
@@ -43,9 +43,9 @@ static long long nsec_high(long long nsec)
        return nsec;
 }
 
-static unsigned long nsec_low(long long nsec)
+static unsigned long nsec_low(unsigned long long nsec)
 {
-       if (nsec < 0)
+       if ((long long)nsec < 0)
                nsec = -nsec;
 
        return do_div(nsec, 1000000);