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use kernel abs(), remove recursion in gcd() (closes: #2307)

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@8608 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nico 2007-09-04 10:44:45 +00:00
parent e0cedcbc75
commit 1d1cb9fb51
1 changed files with 13 additions and 9 deletions
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22
target/linux/ar7-2.6/files/arch/mips/ar7/clock.c
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@ -99,16 +99,20 @@ EXPORT_SYMBOL(ar7_bus_clock);
int ar7_dsp_clock = 0;
EXPORT_SYMBOL(ar7_dsp_clock);
static int gcd(int x, int y)
static int gcd(int a, int b)
{
if (x > y)
return (x % y) ? gcd(y, x % y) : y;
return (y % x) ? gcd(x, y % x) : x;
}
int c;
static inline int ABS(int x)
{
return (x >= 0) ? x : -x;
if ( a < b) {
c = a;
a = b;
b = c;
}
while (c = (a % b)) {
a = b;
b = c;
}
return b;
}
static void approximate(int base, int target, int *prediv,
@ -118,7 +122,7 @@ static void approximate(int base, int target, int *prediv,
for (i = 1; i <= 16; i++) {
for (j = 1; j <= 32; j++) {
for (k = 1; k <= 32; k++) {
freq = ABS(base / j * i / k - target);
freq = abs(base / j * i / k - target);
if (freq < res) {
res = freq;
*mul = i;