On Fri, 8 Jun 2012 23:15:30 -0400 Namjae Jeon <linkinjeon@xxxxxxxxx> wrote: > The compile warning is caused by __const_hweight8 when using > hweight_long with -Wsign-compare option. > The reason is that the default return value of this macro is signed. > So need type casting to remove warning. um, what warning? Please always quote the compiler messages when fixing build warnings or errors. > index fa2a50b..3ad0dae 100644 > --- a/include/asm-generic/bitops/const_hweight.h > +++ b/include/asm-generic/bitops/const_hweight.h > @@ -4,7 +4,7 @@ > /* > * Compile time versions of __arch_hweightN() > */ > -#define __const_hweight8(w) \ > +#define __const_hweight8(w) (unsigned long) \ > ( (!!((w) & (1ULL << 0))) + \ > (!!((w) & (1ULL << 1))) + \ > (!!((w) & (1ULL << 2))) + \ -- 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
