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Subject[RFC PATCH 03/16] parisc: support poweroff through poweroff handler call chain
Date
The kernel core now supports a poweroff handler call chain
to remove power from the system. Call it from machine_power_off.

Also, do not use pm_power_off as alternate pointer to machine_power_off.
Have the parisc/power driver call kernel_power_off() which in turn will
call machine_power_off().

Cc: James E.J. Bottomley <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
arch/parisc/kernel/process.c | 7 +++++--
drivers/parisc/power.c | 3 +--
2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index 0bbbf0d..21d1ab3 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -42,6 +42,7 @@
#include <linux/module.h>
#include <linux/personality.h>
#include <linux/ptrace.h>
+#include <linux/reboot.h>
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/stddef.h>
@@ -133,7 +134,9 @@ void machine_power_off(void)
pdc_soft_power_button(0);

pdc_chassis_send_status(PDC_CHASSIS_DIRECT_SHUTDOWN);
-
+
+ do_kernel_poweroff();
+
/* It seems we have no way to power the system off via
* software. The user has to press the button himself. */

@@ -141,7 +144,7 @@ void machine_power_off(void)
"Please power this system off now.");
}

-void (*pm_power_off)(void) = machine_power_off;
+void (*pm_power_off)(void);
EXPORT_SYMBOL(pm_power_off);

/*
diff --git a/drivers/parisc/power.c b/drivers/parisc/power.c
index 90cca5e..de5b2ff 100644
--- a/drivers/parisc/power.c
+++ b/drivers/parisc/power.c
@@ -95,8 +95,7 @@ static void process_shutdown(void)
/* send kill signal */
if (kill_cad_pid(SIGINT, 1)) {
/* just in case killing init process failed */
- if (pm_power_off)
- pm_power_off();
+ kernel_power_off();
}
}
}
--
1.9.1


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