On Aug 22, 2012, at 12:54 PM, Adrian Chadd wrote: > On 22 August 2012 05:02, John Baldwin <j...@freebsd.org> wrote: >> On Tuesday, August 21, 2012 12:34:42 pm Adrian Chadd wrote: >>> Hi, >>> >>> What about just creating an ETHER_ADDR_COPY(dst, src) and putting that >>> in a relevant include file, then hide the ugliness there? >>> >>> The same benefits will likely appear when copying wifi MAC addresses >>> to/from headers. >>> >>> Thanks, I'm glad someone noticed this. >> >> I doubt we even _need_ the ugliness. We should just use *dst = *src >> unless there is a compelling reason not to. > > Because it's not very clear? :-) I'd much prefer my array-of-things > copies to be explicit.
But it isn't an array of things. It is a structure.a > Also, the optimisation and compiler silliness may not be THAT obvious > on intel (except when you're luigi and using netmap) but I can't help > but wonder whether the same does hold for MIPS/ARM. Getting it wrong > there will lead to some very very poor performing code. Which is why we need to check that output to make sure it isn't too horrible. Warner _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "freebsd-hackers-unsubscr...@freebsd.org"
