On Tue, Nov 06 2007 at 18:38 +0200, "Robert P. J. Day" <[EMAIL PROTECTED]> wrote: > While this macro is defined in terms of "is_power_of_2" and is > therefore functionally equivalent, the visual semantics are sometimes > more appropriate for what is actually being tested. > > Signed-off-by: Robert P. J. Day <[EMAIL PROTECTED]> > > --- > > diff --git a/include/linux/log2.h b/include/linux/log2.h > index c8cf5e8..d0d324e 100644 > --- a/include/linux/log2.h > +++ b/include/linux/log2.h > @@ -55,6 +55,12 @@ bool is_power_of_2(unsigned long n) > } > > /* > + * And for folks who want slightly different semantics ... > + */ > + > +#define exactly_one_bit_set is_power_of_2
at_most_one_bit_set No? > + > +/* > * round up to nearest power of two > */ > static inline __attribute__((const)) Boaz - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
