Hi How about net_random() and net_srandom()(in net/core/utils.c), theyre also random number generators, any suggestions as to which is better get_random_bytes () or any of these ? Thanks Sven, but would a & not be better than a % to get a value between 0 and my max value, i.e i can do a (get_random_bytes_returned & max_value). Does this in anyway reduce randomnness ? Any suggestions are welcome. thanks Amit Sven Schuster <schuster.sven@gmx.de> on 06/07/2004 06:17:12 PM To: Amit Kumar Singh/HSS@HSS cc: kernelnewbies@nl.linux.org Subject: Re: float and random number generator Hi Amit, On Mon, Jun 07, 2004 at 05:11:08PM +0530, aksingh@hss.hns.com told us: > > Hi, > > 1) can we use float in the kernel modules, i don't find any > using it ? try googling for this one, this has probably been discussed quite a feq times before and also should be on som faqs. Unfortunately I don't have a link at hand. Maybe someone else can shed more light on this?? > 2) do we have any random number generator in the > kernel ? anything that can be used by modules, looked at linux/random.h, > but there wasnt any generic random number generator that generated a random > number between two limits say 1 .. n, where n might be any positive integer > . Take a look at get_random_bytes() in drivers/char/random.c. Take one random byte (or two if 255 < n < 65536) and make a modulo division (%) to get the maximum number you need. HTH Sven > > thanks > Amit > -- Linux zion 2.6.7-rc2 #2 Mon May 31 22:58:01 CEST 2004 i686 athlon i386 GNU/Linux 14:43:00 up 6 days, 15:42, 3 users, load average: 0.07, 0.03, 0.00
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