Hi,

On Fri, 26 Apr 2013 14:02:01 +0900 "Chanho Min" <chanho.min@lge.com> wrote:
>
> 
> @@ -0,0 +1,23 @@
> +#include <linux/kernel.h>
> +
> +int __attribute__((weak)) __clzsi2(int val)

We have __weak in <linux/compiler.h>

-- 
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au