On Thu, 2014-08-14 at 23:20 +0200, Laszlo Ersek wrote: > You're going to use my name in contexts that I won't wish to be privy > to. :) I like everything about this patch except: > > > + case MSR_MTRRphysBase(0) ... MSR_MTRRphysMask(MSR_MTRRcap_VCNT): > > ... the off-by-one in this case range. Everything is cool and the range > conforms to > <https://gcc.gnu.org/onlinedocs/gcc-4.9.1/gcc/Case-Ranges.html> (ie. the > range is inclusive), but the *argument* of the MSR_MTRRphysMask() macro > is off-by-one. You should say > > case MSR_MTRRphysBase(0) ... MSR_MTRRphysMask(MSR_MTRRcap_VCNT - 1): > > Peek up to the for loops: the greatest argument you ever pass to > MSR_MTRRphysMask() is (MSR_MTRRcap_VCNT - 1). > > Of course this causes no visible bug, because we don't use those > register indices at all (and if we *did* use them, then we'd add new > case labels for them, and then gcc would be required by the standard to > complain about duplicated case labels [*]).
Nope, legitimate bug. v3 on the way... -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
