[lkml]   [2000]   [Nov]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: 2.4.0-test10-pre6: Use of abs()
   Date: Wed, 1 Nov 2000 09:46:19 -0500
From: tytso@MIT.EDU

On Mon, Oct 30, 2000 at 05:14:34PM +0100, Martin Dalecki wrote:
> Of corse right! BTW. There are tons of places where log2 is calculated
> explicitly in kernel which should be replaced with the corresponding
> built
> in functions as well (/dev/random code does it). And then If I remember
> correctly
> there is an attribute which is telling about internal functions
> in declarations explicitly as well?

And in the case of /dev/random, since we know something about what the
possible inputs can be, I'm fairly certain that the "int_ln_12bits" used
by /dev/random is probably far better than the general purpose code
which GCC no doubt has to emit....

- Ted
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
Please read the FAQ at

 \ /
  Last update: 2005-03-22 12:45    [W:0.113 / U:0.720 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site