On 10/05/2011 01:55 PM, Alexander Graf wrote: > > On 05.10.2011, at 18:06, Scott Wood wrote: > >> Any reason for __ilog2() rather than ilog2()? Shouldn't make a >> difference, just curious about avoiding the public interface. > > I grep'ed through the kernel tree and only found __ilog2 defined as well as mostly users for __ilog2, so I figured there's got to be a reason ;) ilog2() is defined in include/linux/ilog2.h. It produces constant output if the input is constant, and appears to be the "front door" to __ilog2_u32/__ilog2_u64. Plain __ilog2 is older and powerpc-specific, which is probably why there are more users of that in arch/powerpc. -Scott -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
