X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=lib%2Fdiv64.c;h=74f0c8cb40315f6b985c96a238dbb99b382931d6;hb=22b9a0a3a49ab1a856e0853b3f3dd2abd156bd7c;hp=c3d7655cdfb5537b2b6ef71e09d284827552050a;hpb=c454673da7c1d6533f40ec2f788023df9af56ebf;p=powerpc.git diff --git a/lib/div64.c b/lib/div64.c index c3d7655cdf..74f0c8cb40 100644 --- a/lib/div64.c +++ b/lib/div64.c @@ -61,20 +61,18 @@ EXPORT_SYMBOL(__div64_32); /* 64bit divisor, dividend and result. dynamic precision */ uint64_t div64_64(uint64_t dividend, uint64_t divisor) { - uint32_t d = divisor; + uint32_t high, d; - if (divisor > 0xffffffffULL) { - unsigned int shift = fls(divisor >> 32); + high = divisor >> 32; + if (high) { + unsigned int shift = fls(high); d = divisor >> shift; dividend >>= shift; - } + } else + d = divisor; - /* avoid 64 bit division if possible */ - if (dividend >> 32) - do_div(dividend, d); - else - dividend = (uint32_t) dividend / d; + do_div(dividend, d); return dividend; }