Hi, Arnd: Following warning is generated when using <asm-generic/div64.h> kernel/power/hibernate.c: In function 'swsusp_show_speed': kernel/power/hibernate.c:227: warning: comparison of distinct pointer types lacks a cast After expanding the do_div() macro, the problem line is: (void)(((typeof((n)) *)0) == ((uint64_t *)0)); while the type of n is s64. I am puzzled with the usage of the problem line. And how to correct it? Guan Xuetao -- 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