From: David Miller <davem@davemloft.net>
To: zenczykowski@gmail.com
Cc: netdev@vger.kernel.org
Subject: Re: [PATCH] net: pfifo_fast - use ffs(x)-1 instead of array lookup
Date: Tue, 13 Mar 2012 00:25:00 -0700 (PDT) [thread overview]
Message-ID: <20120313.002500.1677522047432496866.davem@davemloft.net> (raw)
In-Reply-To: <CAHo-Ooyi_NOZeT978EjUaPSYBMco9FmQh8uNpCLr-6owfYyMTQ@mail.gmail.com>
From: Maciej Żenczykowski <zenczykowski@gmail.com>
Date: Tue, 13 Mar 2012 00:21:55 -0700
> If I understand correctly, you're suggesting to go with
>
> return ((26468 >> (i+i)) & 3) - 1;
>
> correct?
Yes, at least for now.
next prev parent reply other threads:[~2012-03-13 7:25 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-13 5:12 [PATCH] net: pfifo_fast - use ffs(x)-1 instead of array lookup Maciej Żenczykowski
2012-03-13 5:13 ` Maciej Żenczykowski
2012-03-13 5:54 ` David Miller
2012-03-13 7:21 ` Maciej Żenczykowski
2012-03-13 7:23 ` Maciej Żenczykowski
2012-03-13 7:25 ` David Miller
2012-03-13 7:25 ` David Miller [this message]
2012-03-13 11:04 ` David Laight
2012-03-13 16:55 ` David Laight
2012-03-13 17:34 ` Eric Dumazet
2012-03-13 20:37 ` Maciej Żenczykowski
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