Re: [PATCH] Fix build failure in recent pm_prepare_* changes.

[Andrew Morton <akpm@osdl.org>]

"Rafael J. Wysocki" <rjw@sisk.pl> wrote:
>
> Sorry, my recent change has broken it, but pm_prepare_console() and
> pm_restore_console() are only static if CONFIG_VT or CONFIG_VT_CONSOLE
> is not set which Ben told me should not happen on Macs.

But kernel/power/power.h has

#ifdef SUSPEND_CONSOLE
extern int pm_prepare_console(void);
extern void pm_restore_console(void);
#else
static int pm_prepare_console(void) { return 0; }
static void pm_restore_console(void) {}
#endif

> --- linux-2.6.16-rc1-mm5.orig/drivers/macintosh/via-pmu.c
> +++ linux-2.6.16-rc1-mm5/drivers/macintosh/via-pmu.c
> @@ -2070,6 +2070,14 @@ restore_via_state(void)
>  	out_8(&via[IER], IER_SET | SR_INT | CB1_INT);
>  }
>  
> +#if defined(CONFIG_VT) && defined(CONFIG_VT_CONSOLE)
> +extern int pm_prepare_console(void);
> +extern void pm_restore_console(void);
> +#else
> +static int pm_prepare_console(void) { return 0; }
> +static void pm_restore_console(void) {}
> +#endif
> +

These should be in a header file.  Presumably one which
kernel/power/power.h includes, too.