On Fri, Jun 17, 2011 at 11:27:57AM +0200, Tobias Klauser wrote: > On 2011-06-17 at 11:00:29 +0200, Joey Lee <jlee@xxxxxxxxxx> wrote: > > ??? ??????2011-06-16 ??? 13:38 +0200???Tobias Klauser ????????? > > > Use a local pointer to reference the urb instead of dereferencing the > > > priv->urb member all over the function. > > > > > > > What's the benefit for use local pointer to instead of priv->urb? Does > > it for coding style? > > Dereferencing a pointer can be an expensive operation, depending on the > (cache) architecture. I'd have to see some benchmarks before I believe that matters here. :P regards, dan carpenter _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/devel
