Messages in this thread | | | Subject | Re: When should we use likely() / unlikely() / get_unaligned() ? | From | David Woodhouse <> | Date | Sun, 08 Feb 2004 23:06:43 +0000 |
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On Mon, 2004-02-09 at 10:00 +1100, Rusty Russell wrote: > > we now support architectures in 2.6 where alignment fixups _cannot_ happen, > > and the cost of the 'exception' case should be considered infinite. > > Um, we do? I thought it was compulsory in the kernel, otherwise > networking breaks on packets w/ wierd hardware headers.
We do. It breaks. I'm trying to come up with a solution for it which actually lets us optimise elsewhere too, and hence has at least a whelk's chance in a supernova of being accepted... :)
-- dwmw2
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