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| author | Nicolas Thill <nico@openwrt.org> | 2007-09-04 10:44:45 +0000 |
|---|---|---|
| committer | Nicolas Thill <nico@openwrt.org> | 2007-09-04 10:44:45 +0000 |
| commit | 21580d89a5668568d407af7a728b31bf0d73907d (patch) | |
| tree | 4ab929dcd4e1d3ecb68e00c1c9de4c0d4ba2991d /target/linux/ar7-2.6/files/arch/mips | |
| parent | 10a876e21d34b2bd114d19f364fa1d738325ceac (diff) | |
| download | upstream-21580d89a5668568d407af7a728b31bf0d73907d.tar.gz upstream-21580d89a5668568d407af7a728b31bf0d73907d.tar.bz2 upstream-21580d89a5668568d407af7a728b31bf0d73907d.zip | |
use kernel abs(), remove recursion in gcd() (closes: #2307)
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@8608 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/ar7-2.6/files/arch/mips')
| -rw-r--r-- | target/linux/ar7-2.6/files/arch/mips/ar7/clock.c | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/target/linux/ar7-2.6/files/arch/mips/ar7/clock.c b/target/linux/ar7-2.6/files/arch/mips/ar7/clock.c index f51c641a3d..c7ae09ecd7 100644 --- a/target/linux/ar7-2.6/files/arch/mips/ar7/clock.c +++ b/target/linux/ar7-2.6/files/arch/mips/ar7/clock.c @@ -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; |