Re: [PATCH 01/44] kernel: Add support for poweroff handler call chain

Geert Uytterhoeven
2014-10-09T11:31:40Z

On Tue, Oct 7, 2014 at 7:28 AM, Guenter Roeck <linux@roeck-us.net> wrote:
> +int register_poweroff_handler_simple(void (*handler)(void), int priority)
> +{
> + char symname[KSYM_NAME_LEN];
> +
> + if (poweroff_handler_data.handler) {
> + lookup_symbol_name((unsigned long)poweroff_handler_data.handler,
> + symname);
> + pr_warn("Poweroff function already registered (%s)", symname);
> + lookup_symbol_name((unsigned long)handler, symname);
> + pr_cont(", cannot register %s\n", symname);

Doesn't %ps work to look up symbols?

pr_warn("Poweroff function already registered (%ps), cannot register
%ps\n", poweroff_handler_data.handler, handler);

> + return -EBUSY;
> + }

Gr{oetje,eeting}s,

Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds