Re: [mmotm] pm: fix build error

[Pavel Machek <pavel@suse.cz>]

Hi!

> My IA64 machine can't build on today's mmotm(Jul 13).
> So, below patch is necessary, I think.
> 
> ----------------------------------------------------
> Against: mmotm, Jul 13
> Applies after: pm-schedule-sysrq-poweroff-on-boot-cpu.patch
> 
> Now, handle_poweroff() use cpu_online_map variable.
> So cpumask.h sould be included.
> Otherwise it cause following build error on ia64 (I guess also sevaral othor platfom).
> 
> 	kernel/power/poweroff.c: In function 'handle_poweroff':
> 	kernel/power/poweroff.c:29: error: implicit declaration of function 'first_cpu'
> 	kernel/power/poweroff.c:29: error: 'cpu_online_map' undeclared (first use in this function)
> 	kernel/power/poweroff.c:29: error: (Each undeclared identifier is reported only once
> 	kernel/power/poweroff.c:29: error: for each function it appears in.)
> 	make[2]: *** [kernel/power/poweroff.o] Error 1
> 	make[1]: *** [kernel/power] Error 2
> 
> 
> Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
> CC: Zhang Rui <rui.zhang@intel.com>
> CC: Rus <harbour@sfinx.od.ua>
> CC: Rafael J. Wysocki <rjw@sisk.pl>
> CC: Pavel Machek <pavel@ucw.cz>

ACK.

> ---
>  kernel/power/poweroff.c |    1 +
>  1 file changed, 1 insertion(+)
> 
> Index: b/kernel/power/poweroff.c
> ===================================================================
> --- a/kernel/power/poweroff.c
> +++ b/kernel/power/poweroff.c
> @@ -10,6 +10,7 @@
>  #include <linux/pm.h>
>  #include <linux/workqueue.h>
>  #include <linux/reboot.h>
> +#include <linux/cpumask.h>
>  
>  /*
>   * When the user hits Sys-Rq o to power down the machine this is the
> 

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