On Thu, 2013-10-17 at 10:40 +0200, Borislav Petkov wrote: > On Thu, Oct 17, 2013 at 01:32:30AM -0700, Joe Perches wrote: > > On Thu, 2013-10-17 at 03:38 -0400, Chen Gong wrote: > > > the point is we can use GENMASK like GENMASK(end_bit, start_bit) but > > > we don't know the value of end_bit/start_bit at compile-time. > > > > True. > > > > The BUILD_BUG_ON idea is just to avoid people using > > GENMASK(1, 2) > > They'll notice the 0 pretty quickly when they test their code. > > Let's add those checks only when it is really necessary and people have > actually made that mistake repeatedly.
It's cost free to add the BUILD_BUG_ON and perhaps you underestimate the runtime bug checking effort, -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
