funny looking equation

From: Steven Rostedt
Date: Wed Oct 11 2006 - 15:41:04 EST


I was just testing some of my parsing code on all the .c and .h files in
the Linux kernel, and I came up with this little equation:

from 2.6.18 drivers/atm/eni.c:1272


---
int div;

if (!*pcr) *pcr = eni_dev->tx_bw+reserved;
for (*pre = 3; *pre >= 0; (*pre)--)
if (TS_CLOCK/pre_div[*pre]/64 > -*pcr) break;
if (*pre < 3) (*pre)++; /* else fail later */
div = pre_div[*pre]*-*pcr;
^^^^^^^^^^^^^
This could really do with some spaces and a couple of parenthesis.

DPRINTK("max div %d\n",div);
*res = (TS_CLOCK+div-1)/div-1;
---


Oh well, this isn't a bug. Just something that someone might want to
clean up the next time they touch that code.

-- Steve


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