On Fre, 2010-08-20 at 00:53 +0900, Namhyung Kim wrote: > 2010-08-19 (목), 14:23 +0200, Andi Kleen: > > IMHO it would be better to simply disable the warning in sparse instead > > of uglying the code just to work around sparse bogosity. It doesnt' seem > > to make much sense. A subtraction followed by a shift is not expensive. [...] > I'm curious who turns on that switch. -Wptr-subtraction-blows is turned > off by default, I didn't use CF variable at build time and I could not > find any reference of it in the source tree. Hmm.. sparse also gets gcc's parameters which include (usually) "-Wall". And this activates it. Adding -Wno-ptr-subtraction-blows to CHECKFLAGS should do the trick. Bernd -- mobile: +43 664 4416156 http://www.sysprog.at/ Linux Software Development, Consulting and Services -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
